Claims:WE CLAIM:

1. A composition comprising-metallurgical by product, alkali metal oxide or alkali metal hydroxide and alkali metal sulphate, optionally along with hydrocarboxylic acid, natural sand or natural aggregate, or any combination thereof.

2. The composition as claimed in claim 1, comprises metallurgical by product, alkali metal oxide or alkali metal hydroxide and alkali metal sulphate.

3. The composition as claimed in claim 1, comprises metallurgical by product, alkali metal oxide or alkali metal hydroxide, alkali metal sulphate, natural sand and natural aggregate.

4. The composition as claimed in claim 1, comprises metallurgical by product, alkali metal oxide or alkali metal hydroxide, alkali metal sulphate and hydrocarboxylic acid.

5. The composition as claimed in claim 1, comprises metallurgical by product, alkali metal oxide or alkali metal hydroxide, alkali metal sulphate, hydrocarboxylic acid, natural sand and natural aggregate.

6. The composition as claimed in any one of claims 1 to 5, wherein the metallurgical by product is selected from a group comprising ground granulated blast furnace slag (GGBFS) and steel slag (LD slag), or a combination thereof.

7. The composition as claimed in any one of claims 1 to 5, wherein the metallurgical by product comprises calcium oxide in an amount ranging from about 5% to 50% and iron oxide in an amount ranging from about 0.4% to 25%.

8. The composition as claimed in any one of claims 1 to 5, wherein the alkali metal oxide is selected from a group comprising potassium oxide and sodium oxide; and wherein the alkali metal hydroxide is selected from a group comprising potassium hydroxide and sodium hydroxide.

9. The composition as claimed in any one of claims 1 to 5, wherein the alkali metal sulphate is selected from a group comprising sodium sulphate, calcium sulphate, potassium sulphate, aluminium sulphate and barium sulphate.
10. The composition as claimed in any one of claims 1 to 5, wherein the hydrocarboxylic acid is selected from a group comprising maleic acid, citric acid, malonic acid, oxalic acid, succinic acid, adipic acid and tartaric acid.

11. The composition as claimed in any one of claims 1 to 5, wherein the metallurgical by product is in an amount ranging from about 1% w/w to 90% w/w.

12. The composition as claimed in claim 6, wherein the GGBS is in an amount ranging from about 50% w/w to 90% w/w and the metallurgical by product has a surface area ranging from about 2500cm2/g to 12000 cm2/g.

13. The composition as claimed in claim 6, wherein the steel slag is in an amount ranging from 1% w/w to 5 % w/w and the steel slag has a surface area ranging from about 2500cm2/g to 12000 cm2/g

14. The composition as claimed in any one of claims 1 to 5, wherein the alkali metal oxide or the alkali metal hydroxide is in an amount ranging from about 0.1% w/w to 10% w/w.

15. The composition as claimed in any one of claims 1 to 5, wherein the alkali metal sulphate is in an amount ranging from about 0.1% w/w to 10% w/w.

16. The composition as claimed in any one of claims 1 to 5, wherein the hydrocarboxylic acid is in an amount ranging from about 0.1% w/w to 1.0% w/w.

17. The composition as claimed in any one of claims 1 to 5, wherein the natural sand is in an amount ranging from about 10% w/w to 35% w/w; and the natural aggregate is in an amount ranging from about 10% w/w to 50% w/w.

18. The composition as claimed in any one of claims 1 to 5, wherein the composition is devoid of alkali metal silicate.

19. The composition as claimed in any one of claims 1 to 5, wherein the composition is devoid of portland cement.

20. The composition as claimed in any one of claims 1 to 5, is air curable or water curable or both air and water curable.
21. A process of preparing the composition as claimed in claim 1, comprising mixing the metallurgical by product, the alkali metal oxide or the alkali metal hydroxide and the alkali metal sulphate, optionally along with hydrocarboxylic acid, natural sand and natural aggregate.

22. The process as claimed in claim 21, comprises mixing about 1% w/w to 90% w/w of the metallurgical by product, about 0.1% w/w to 10% w/w of the alkali metal oxide or the alkali metal hydroxide and about 0.1% w/w to 10% w/w of the alkali metal sulphate, optionally along with about 0.1% w/w to 1.0% w/w of the hydrocarboxylic acid , about 10% w/w to 35% w/w of natural sand or about 10% w/w to 50% w/w natural aggregate, or any combination thereof.

23. An article comprising the composition as claimed in claim 1.

24. The article as claimed in claim 23 is selected from a group comprising paver, light weight block, slab, partition board and tile.

25. The article as claimed in claim 23, has a compressive strength of about 5Mpa to 40 Mpa.

26. A process of preparing the article as claimed in claim 23, comprising-
mixing the composition comprising the metallurgical by product, the alkali metal oxide or the alkali metal hydroxide and the alkali metal sulphate , optionally along with hydrocarboxylic acid, natural sand or natural aggregate, or any combination thereof, with water to obtain a slurry; and
moulding the slurry to a predetermined shape to obtain the article.

27. A kit comprising-
a) alkali metal oxide or alkali metal hydroxide;
b) alkali metal sulphate;
c) metallurgical by product; and
d) instruction manual.
optionally along with hydrocarboxylic acid, natural sand or natural aggregate, or any combination thereof.

28. The kit as claimed in claim 27, wherein the instruction manual comprises instruction to prepare the composition as claimed in claim 1 and the article as claimed in claim 23.

29. The kit as claimed in claim 28, wherein the instruction for preparing the composition is mixing the metallurgical by product, the alkali metal oxide or the alkali metal hydroxide and the alkali metal sulphate, optionally along with hydrocarboxylic acid natural sand or natural aggregate, or any combination thereof, to obtain the composition.

30. The kit as claimed in claim 28, wherein the instruction for preparing the article is mixing the metallurgical by product, the alkali metal oxide or the alkali metal hydroxide and the alkali metal sulphate, optionally along with hydrocarboxylic acid, natural sand or natural aggregate, or any combination thereof, with water, to obtain a slurry; and moulding the slurry to a predetermined shape to obtain the article.

31. The kit as claimed in claim 28, wherein the instruction for preparing the article is- dissolving the alkali metal oxide or alkali metal hydroxide and alkali metal sulphate in water to obtain a solution;
adding the solution to metallurgical by product and hydrocarboxylic acid, followed by mixing to obtain a slurry; and
moulding the slurry to a predetermined shape to obtain the article.

Dated this 21st day of March, 2018

DURGESH MUKHARYA
IN/PA-1541
Of K&S Partners
Agent for the Applicant(S)
Mob: +91 73497 78249
To:
The Controller of Patents,
The Patent Office, at: Kolkata , Description:TECHNICAL FIELD
The present disclosure describes a composition comprising metallurgical by product, alkali metal oxide or alkali metal hydroxide and alkali metal sulphate, optionally along with hydrocarboxylic acid natural sand or natural aggregate, or any combination thereof. The disclosure further describes a process of preparing the said composition. The disclosure furthermore describes an article comprising the said composition and a kit and processes of preparing the article and the kit.

BACKGROUND OF THE DISCLOSURE
The process of production Cementous composition, including the Portland cement involves heating the raw materials to sintering temperatures. Large amount of carbon di oxide is released while making such preparation that creates bad effects on the environment. It is estimated that ordinary Portland cement utilizes 2% of global energy and 5% of industrial energy. Production of one ton of ordinary Portland cement causes at least 0.75 tons (of which carbon di oxide accounts of 0.5tons) of greenhouse gases emission, which is a major pollutant that spoils the environment.

In addition, the ordinary Portland cement produced has several drawbacks such as cracks due to shrinkage, expansion because of sulphate attack, expansion due to the presence of alkalis in the aggregates. Thus, there appears a need for producing a Cementous material which does not cause harm to the environment and is having better properties.

It is noted that disposal of industrial waste such as ground granulated blast furnace slag and steel slag have been a major problem and concern for the industry. Predominantly, the said industrial waste is observed going into to landfill causing damage to the environment.

In the present invention, the Applicant intends to address the problems described above by arriving at a composition which is described in the detailed description.

SUMMARY OF THE DISCLOSURE
Accordingly, the present disclosure describes a composition comprising metallurgical by product, alkali metal oxide or alkali metal hydroxide and alkali metal sulphate, optionally along with hydrocarboxylic acid, natural sand or natural aggregate, or any combination thereof.

The present disclosure further describes a process of preparing the composition comprising mixing the metallurgical by product, the alkali metal oxide or the alkali metal hydroxide and the alkali metal sulphate, optionally along with hydrocarboxylic acid natural sand or natural aggregate, or any combination thereof.

The present disclosure further describes an article comprising the said composition.

The present disclosure further describes a process of preparing the article comprising mixing the composition comprising the metallurgical by product, the alkali metal oxide or the alkali metal hydroxide and the alkali metal sulphate, optionally along with hydrocarboxylic acid, natural sand or natural aggregate, or any combination thereof, with water to obtain a slurry; and moulding the slurry to a predetermined shape to obtain the article.

The present disclosure further describes a kit comprising: alkali metal oxide or alkali metal hydroxide; alkali metal sulphate; metallurgical by product; hydrocarboxylic acid; and instruction manual, optionally along with natural sand and natural aggregate.

DETAILED DESCRIPTION
The present disclosure describes a composition comprising metallurgical by product, alkali metal oxide or hydroxide and alkali metal sulphate, optionally along with hydrocarboxylic acid, natural sand or natural aggregate, or any combination thereof.

In an embodiment, the metallurgical by product in the composition is selected from a group comprising ground granulated blast furnace slag (GGBFS), steel slag, class C fly ash and class F fly ash, or any combination thereof.

In an embodiment, the alkali metal oxide in the composition is selected from a group comprising potassium oxide and sodium oxide.

In an embodiment, the alkali metal hydroxide in the composition is selected from a group comprising potassium hydroxide and sodium hydroxide.

In an embodiment, the alkali metal sulphate in the composition is selected from a group comprising sodium sulphate, calcium sulphate, potassium sulphate, aluminium sulphate and barium sulphate.

In an embodiment, the hydrocarboxylic acid in the composition is selected from a group comprising maleic acid, citric acid, malonic acid, oxalic acid, succinic acid, and adipic acid and tartaric acid.

In an embodiment, the composition comprises ground granulated blast furnace slag, alkali metal oxide or hydroxide and alkali metal sulphate.

In another embodiment, the composition comprises ground granulated blast furnace slag, alkali metal oxide or hydroxide, alkali metal sulphate, natural sand and natural aggregate.

In another embodiment, the composition comprises ground granulated blast furnace slag, alkali metal oxide or hydroxide, alkali metal sulphate and hydrocarboxylic acid.

In another embodiment, the composition comprises ground granulated blast furnace slag, alkali metal oxide or hydroxide, alkali metal sulphate, hydrocarboxylic acid, natural sand and natural aggregate.

In another embodiment, the composition comprises ground granulated blast furnace slag, steel slag, alkali metal oxide or hydroxide and alkali metal sulphate.

In another embodiment, the composition comprises ground granulated blast furnace slag, steel slag, alkali metal oxide or hydroxide, alkali metal sulphate, natural sand and natural aggregate.

In another embodiment, the composition comprises ground granulated blast furnace slag, steel slag, alkali metal oxide or hydroxide, alkali metal sulphate and hydrocarboxylic acid.

In another embodiment, the composition comprises ground granulated blast furnace slag, steel slag, alkali metal oxide or hydroxide, alkali metal sulphate, hydrocarboxylic acid, natural sand and natural aggregate.

In an embodiment, the metallurgical by product in the composition is in an amount ranging from about 1%w/w to 90%w/w.

In another embodiment, the metallurgical by product in the composition is in an amount of about 1%w/w, about 2%w/w, about 3%w/w, about 4%w/w, about 5%w/w, about 6%w/w, about 7%w/w, about 8%w/w, about 9%w/w, about 10%w/w, about 12%w/w, about 14%w/w, about 16%w/w, about 18%w/w, about 20%w/w, about 22%w/w, about 24%w/w, about 26%w/w, about 28%w/w, about 30%w/w, about 32%w/w, about 34%w/w, about 36%w/w, about 38%w/w, about 40%w/w, about 42%w/w, about 44%w/w, about 46%w/w, about 48%w/w, about 50%w/w, about 52% w/w, about 54% w/w, about 56% w/w, about 58% w/w, about 60% w/w, about 62% w/w, about 64% w/w, about 66% w/w, about 68% w/w, about 70% w/w, about 72% w/w, about 74% w/w, about 76% w/w, about 78% w/w, about 80% w/w, about 82% w/w, about 84% w/w, about 86% w/w, about 88% w/w or about 90% w/w.

In an embodiment, the ground granulated blast furnace slag in the composition is in an amount ranging from about 50% w/w to 90% w/w.

In another embodiment, the ground granulated blast furnace slag in the composition is in an amount of about 50% w/w, about 52% w/w, about 54% w/w, about 56% w/w, about 58% w/w, about 60% w/w, about 62% w/w, about 64% w/w, about 66% w/w, about 68% w/w, about 70% w/w, about 72% w/w, about 74% w/w, about 76% w/w, about 78% w/w, about 80% w/w, about 82% w/w, about 84% w/w, about 86% w/w, about 88% w/w or about 90% w/w.

In an embodiment, the steel slag in the composition is in an amount ranging from about 1% w/w to 5% w/w.

In another embodiment, the steel slag in the composition is in an amount of about 1% w/w, about 1.2% w/w, about 1.4% w/w, about 1.6% w/w, about 1.8% w/w, about 2.0% w/w, about 2.2 % w/w, about 2.4% w/w, about 2.6% w/w, about 2.8% w/w, about 3% w/w, about 3.2% w/w, about 3.4% w/w, about 3.6% w/w, about 3.8% w/w, about 4 % w/w, about 4.2 % w/w, about 4.4 % w/w, about 4.6 % w/w, about 4.8 % w/w or about 5% w/w.

In an embodiment, the alkali metal oxide or alkali metal hydroxide in the composition is in an amount ranging from about 0.1% to 10% w/w.

In another embodiment, the alkali metal oxide or alkali metal hydroxide in the composition is preferably present in an amount ranging from about 2.5% w/w to 5% w/w.

In another embodiment, the alkali metal oxide or alkali metal hydroxide in the composition is in an amount of about 0.1% w/w, about 0.2% w/w, about 0.4% w/w, about 0.6% w/w, about 0.8% w/w, about 1% w/w, about 1.2% w/w, about 1.4% w/w, about 1.6% w/w, about 1.8% w/w, about 2% w/w, about 2.2% w/w, about 2.4% w/w, about 2.6% w/w, about 2.8% w/w, about 3% w/w, about 3.2% w/w, about 3.4% w/w, about 3.6% w/w, about 3.8% w/w, about 4% w/w, about 4.2% w/w, about 4.4% w/w, about 4.6% w/w, about 4.8% w/w, about 5% w/w, about 5.2% w/w, about 5.4% w/w, about 5.6% w/w, about 5.8% w/w, about 6% w/w, about 6.2% w/w, about 6.4% w/w, about 6.6% w/w, about 6.8% w/w, about 7% w/w, about 7.2% w/w, about 7.4% w/w, about 7.6% w/w, about 7.8% w/w, about 8% w/w, about 8.2% w/w, about 8.4% w/w, about 8.6% w/w, about 8.8% w/w, about 9% w/w, about 9.2% w/w, about 9.4% w/w, about 9.6% w/w, about 9.8% w/w or about 10% w/w.

In an embodiment, the alkali metal sulphate in the composition is in an amount ranging from about 0.1% w/w to 10% w/w.

In another embodiment, the alkali metal sulphate in the composition is preferably present in an amount ranging from about 2.5% w/w to 5% w/w.

In another embodiment, the alkali metal sulphate in the composition is in an amount of about 0.1% w/w, about 0.2% w/w, about 0.4% w/w, about 0.6% w/w, about 0.8% w/w, about 1% w/w, about 1.2% w/w, about 1.4% w/w, about 1.6% w/w, about 1.8% w/w, about 2% w/w, about 2.2% w/w, about 2.4% w/w, about 2.6% w/w, about 2.8% w/w, about 3% w/w, about 3.2% w/w, about 3.4% w/w, about 3.6% w/w, about 3.8% w/w, about 4% w/w, about 4.2% w/w, about 4.4% w/w, about 4.6% w/w, about 4.8% w/w, about 5% w/w, about 5.2% w/w, about 5.4% w/w, about 5.6% w/w, about 5.8% w/w, about 6% w/w, about 6.2% w/w, about 6.4% w/w, about 6.6% w/w, about 6.8% w/w, about 7% w/w, about 7.2% w/w, about 7.4% w/w, about 7.6% w/w, about 7.8% w/w, about 8% w/w, about 8.2% w/w, about 8.4% w/w, about 8.6% w/w, about 8.8% w/w, about 9% w/w, about 9.2% w/w, about 9.4% w/w, about 9.6% w/w, about 9.8% w/w or about 10% w/w.

In an embodiment, the hydrocarboxylic acid in the composition is in an amount ranging from about 0.1% w/w to 1.0% w/w.

In another embodiment, the hydrocarboxylic acid in the composition is preferably present in an amount ranging from about 0.1%w/w to 0.4% w/w.

In another embodiment, the hydrocarboxylic acid in the composition is in an amount of about 0.1% w/w, about 0.12% w/w, about 0.14% w/w, about 0.16% w/w, about 0.18% w/w, about 0.2% w/w, about 0.22% w/w, about 0.24% w/w, about 0.26% w/w, about 0.28% w/w, about 0.3% w/w, about 0.32% w/w, about 0.34% w/w, about 0.36% w/w, about 0.38% w/w, about 0.4% w/w, about 0.42% w/w, about 0.44% w/w, about 0.46% w/w, about 0.48% w/w, about 0.5% w/w, about 0.52% w/w, about 0.54% w/w, about 0.56% w/w, about 0.58% w/w, about 0.6% w/w, about 0.62% w/w, about 0.64% w/w, about 0.66% w/w, about 0.68% w/w, about 0.7% w/w, about 0.72% w/w, about 0.74% w/w, about 0.76% w/w, about 0.78% w/w, about 0.8% w/w, about 0.82% w/w, about 0.84% w/w, about 0.86% w/w, about 0.88% w/w, about 0.9% w/w, about 0.92% w/w, about 0.94% w/w, about 0.96% w/w, about 0.98% w/w or about 1.0% w/w.

In an embodiment, the natural aggregate in the composition is crushed stone gravel.

In an embodiment, the natural sand in the composition is in an amount ranging from about 10%w/w to 35% w/w.

In another embodiment, the natural sand in the composition is in amount of about 10% w/w, about 12% w/w, about 14% w/w, about 16% w/w, about 18% w/w, about 20% w/w, about 22% w/w, about 24% w/w, about 26% w/w, about 28% w/w, about 30% w/w, about 31% w/w, about 32% w/w, about 33% w/w, about 34% w/w or about 35% w/w.

In an embodiment, the natural aggregate in the composition is in an amount ranging from about 10%w/w to 50% w/w.

In another embodiment, the natural aggregate in the composition is in amount of about 10% w/w, about 12% w/w, about 14% w/w, about 16% w/w, about 18% w/w, about 20% w/w, about 22% w/w, about 24% w/w, about 26% w/w, about 28% w/w, about 30% w/w, about 32% w/w, about 34% w/w, about 36% w/w, about 38% w/w, about 40% w/w, about 42% w/w, about 44% w/w, about 46% w/w, about 48% w/w or about 50% w/w.

In an embodiment, the composition comprises about 50%w/w to 90% w/w of the ground granulated blast furnace slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide and about 0.1% w/w to 10% w/w of the alkali metal sulphate.

In another embodiment, the composition comprises about 50%w/w to 90%w/w of the ground granulated blast furnace slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate, about 10% w/w to 35% w/w of the natural sand and about 10% w/w to 50% w/w of the natural aggregate.

In an embodiment, the composition comprises about 50%w/w to 90% w/w of the ground granulated blast furnace slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate and about 0.1% w/w to 1% w/w of the hydrocarboxylic acid.

In another embodiment, the composition comprises about 50%w/w to 90%w/w of the ground granulated blast furnace slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate, about 0.1% w/w to 1% w/w of the hydrocarboxylic acid, about 10% w/w to 35% w/w of the natural sand and about 10% w/w to 50% w/w of the natural aggregate.

In another embodiment, the composition comprises about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1% w/w to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide and about 0.1% w/w to 10% w/w of the alkali metal sulphate.

In another embodiment, the composition comprises about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1% w/w to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate, about 10% w/w to 35% w/w of the natural sand and about 10% w/w to 50% w/w of the natural aggregate.

In another embodiment, the composition comprises about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1% w/w to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate and about 0.1% w/w to 1% w/w of the hydrocarboxylic acid.

In another embodiment, the composition comprises about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1% w/w to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate, about 0.1% w/w to 1% w/w of the hydrocarboxylic acid, about 10% w/w to 35% w/w of the natural sand and about 10% w/w to 50% w/w of the natural aggregate.

In an embodiment, the metallurgical by product in the composition is having a surface area ranging from about 2500cm2/g to 12000cm2/g.

In an embodiment, the ground granulated blast furnace slag in the composition is having a surface area ranging from about 2500cm2/g to 12000cm2/g.

In another embodiment, the ground granulated blast furnace slag in the composition is having a surface area of about 2500cm2/g, about 3000cm2/g, about 3500cm2/g, about 4000cm2/g, about 4500cm2/g, about 5000cm2/g, about 5500cm2/g, about 6000cm2/g, about 6500cm2/g, about 7000cm2/g, about 7500cm2/g, about 8000cm2/g, about 8500cm2/g, about 9000cm2/g, about 9500cm2/g, about 10000cm2/g, about 10500cm2/g, about 11000cm2/g, about 11500cm2/g or about 12000cm2/g.

In an embodiment, the steel slag in the composition is having a surface area ranging from about 2500cm2/g to 12000cm2/g.

In another embodiment, the steel slag in the composition is having a surface area of about 2500cm2/g, about 3000cm2/g, about 3500cm2/g, about 4000cm2/g, about 4500cm2/g, about 5000cm2/g, about 5500cm2/g, about 6000cm2/g, about 6500cm2/g, about 7000cm2/g, about 7500cm2/g, about 8000cm2/g, about 8500cm2/g, about 9000cm2/g, about 9500cm2/g, about 10000cm2/g, about 10500cm2/g, about 11000cm2/g, about 11500cm2/g or about 12000cm2/g.

In an embodiment, the metallurgical by product in the composition comprises calcium oxide in an amount ranging from about 5% to 50%.

In another embodiment, the metallurgical by product in the composition comprises calcium oxide in an amount of about 5%, about 10%, about 15%, about 20%, about 25%, about 30%, about 35%, about 40%, about 45% or about 50%.

In an embodiment, the metallurgical by product in the composition comprises iron oxide in an amount ranging from about 0.4% to 25%.

In another embodiment, the metallurgical by product in the composition comprises iron oxide in an amount of about 0.4%, about 0.6%, about 0.8%, about 1%, about 2%, about 4%, about 6%, about 8%, about 10%, about 12%, about 14%, about 16%, about 18%, about 20%, about 21%, about 22%, about 23%, about 24% or about 25%.

In an embodiment, the ground granulated blast furnace slag of the composition comprises about 30% to 50% of CaO, about 28% to 38% of SiO2, about 19% of Al2O3, about 11.5% to 18% of MgO, about 1.16% of FeO and about 1.015% of Fe(T).

In an embodiment, the steel slag of the composition comprises about 43% to 48% of CaO, about 15% to 20% Fe(T), about 10% to 15% SiO2, about 4% to 6% MGO, about 10% to 15% FeO, about 0% to 1% of metallic iron, about 3% to 5% of free lime and about 1% to 3% of Al2O3.

In an embodiment, the composition of the present disclosure is devoid of alkali metal silicate. The metal cement silicate known to be used in the composition of the prior art makes the cementous composition non-economical (costly), less eco-friendly and increases the possibility of leaching of alkalis from the final composition.

In an embodiment, the composition of the present disclosure is devoid of Portland cement.

In an embodiment, the composition of the present disclosure is alkali activated.

In an embodiment, the hydrocarboxylic acid in the composition decreases the surface tension between the particles or increases the particle packing density, thereby enhancing the strength of the composition.

In an embodiment, the composition of the present disclosure exhibits compressive strength ranging from about 5Mpa to 40Mpa.

In another embodiment, the composition of the present disclosure exhibits compressive strength of about 5 Mpa, about 6Mpa, about 8Mpa, about 10Mpa, about 12Mpa, about 14Mpa, about 16Mpa, about 18Mpa, about 20Mpa, about 22Mpa, about 24Mpa, about 26Mpa, about 28Mpa, about 30Mpa, about 32Mpa, about 34Mpa, about 36Mpa, about 38Mpa or about 40Mpa.

In an embodiment, the composition of the present disclosure is capable of being air cured or water cured or a combination thereof.

In an embodiment, the composition of the present disclosure is capable of being air cured.

In another embodiment, the composition of the present disclosure is capable of being water cured.

In another embodiment, the composition of the present disclosure is capable of being both air cured, and water cured.
In an embodiment, the composition of the present disclosure has a setting time ranging from about 30 minutes to 300 minutes.

In another embodiment, the composition of the present disclosure has a setting time of about 30minutes, about 40minutes, about 50minutes, about 60minutes, about 70minutes, about 80minutes, about 90minutes, about 100minutes, about 110minutes, about 120minutes, about 130minutes, about 140minutes, about 150minutes, about 160minutes, about 170minutes, about 180minutes, about 190minutes, about 200minutes, about 210minutes, about 220minutes, about 230minutes, about 240minutes, about 250minutes, about 260minutes, about 270minutes, about 280minutes, about 290minutes or about 300minutes.

The present disclosure further describes a process of preparing the composition described above.

In an embodiment, the process of preparing the composition comprises mixing the metallurgical by product, the alkali metal oxide or hydroxide and the alkali metal sulphate, optionally along with hydrocarboxylic acid, natural sand or natural aggregate, or any combination thereof.

In an embodiment, during the process of preparing the composition, the mixing is carried out at a temperature ranging from about 20ºC to 45ºC.

In another embodiment, during the process of preparing the composition, the mixing is carried out a temperature of about 20ºC, about 22ºC, about 24ºC, about 26ºC, about 28ºC, about 30ºC, about 32ºC, about 34ºC, about 36ºC, about 38ºC, about 40ºC, about 41ºC, about 42ºC, about 43ºC, about 44ºC or about 45ºC.

In another embodiment, the process of preparing the composition comprises mixing the metallurgical by product, the alkali metal oxide or hydroxide and the alkali metal sulphate.

In another embodiment, the process of preparing the composition comprises mixing the metallurgical by product, the alkali metal oxide or hydroxide, the alkali metal sulphate, the natural sand and the natural aggregate.

In another embodiment, the process of preparing the composition comprises mixing the metallurgical by product, the alkali metal oxide or hydroxide, the alkali metal sulphate and the hydrocarboxylic acid.

In another embodiment, the process of preparing the composition comprises mixing the metallurgical by product, the alkali metal oxide or hydroxide, the alkali metal sulphate, the hydrocarboxylic acid, the natural sand and the natural aggregate.

In an embodiment, the process of preparing the composition comprises mixing about 50% to 90% of the ground granulated blast furnace slag, about 0.1%w/w to 10%w/w of the alkali metal oxide or hydroxide and about 0.1%w/w to 10%w/w of the alkali metal sulphate.

In another embodiment, the process of preparing the composition comprises mixing about 50% to 90% of the ground granulated blast furnace slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate, about 10%w/w to 35%w/w of the natural sand and about 10%w/w to 50%w/w of the natural aggregate.

In an embodiment, the process of preparing the composition comprises mixing about 50% to 90% of the ground granulated blast furnace slag, about 0.1%w/w to 10%w/w of the alkali metal oxide or hydroxide, about 0.1%w/w to 10%w/w of the alkali metal sulphate and about 0.1%w/w to 1%w/w of the hydrocarboxylic acid.

In another embodiment, the process of preparing the composition comprises mixing about 50% to 90% of the ground granulated blast furnace slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate, about 0.1%w/w to 1%w/w of the hydrocarboxylic acid, about 10%w/w to 35%w/w of the natural sand and about 10%w/w to 50%w/w of the natural aggregate.

In an embodiment, the process of preparing the composition comprises mixing about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1% w/w to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide and about 0.1% w/w to 10% w/w of the alkali metal sulphate.

In another embodiment, the process of preparing the composition comprises mixing about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1% w/w to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate, about 10% w/w to 35% w/w of the natural sand and about 10% w/w to 50% w/w of the natural aggregate.

In an embodiment, the process of preparing the composition comprises mixing about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1% w/w to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate and about 0.1% w/w to 1% w/w of the hydrocarboxylic acid.

In another embodiment, the process of preparing the composition comprises mixing about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1 w/w % to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate, about 0.1% w/w to 1% w/w of the hydrocarboxylic acid, about 10% w/w to 35% w/w of the natural sand and about 10% w/w to 50% w/w of the natural aggregate.

The present disclosure further describes an article comprising the said composition.

In an embodiment, the article comprises the composition comprising the metallurgical by product, the alkali metal oxide or the alkali metal hydroxide and the alkali metal sulphate, optionally along hydrocarboxylic acid with natural sand or natural aggregate, or any combination thereof.

In an embodiment, the article comprises the composition comprising about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide and about 0.1% w/w to 10% w/w of the alkali metal sulphate.

In another embodiment, the article comprises the composition comprising about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate, about 10% w/w to 35% w/w of the natural sand and about 10% w/w to 50% w/w of the natural aggregate.

In an embodiment, the article comprises the composition comprising about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate and about 0.1% w/w to 1% w/w of the hydrocarboxylic acid.

In another embodiment, the article comprises the composition comprising about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate, about 0.1% w/w to 1% w/w of the hydrocarboxylic acid, about 10% w/w to 35% w/w of the natural sand and about 10% w/w to 50% w/w of the natural aggregate.

In another embodiment, the article comprises the composition comprising about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1% w/w to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide and about 0.1% w/w to 10% w/w of the alkali metal sulphate.

In another embodiment, the article comprises the composition comprising about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1% w/w to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate, about 10% w/w to 35% w/w of the natural sand and about 10% w/w to 50% w/w of the natural aggregate.

In another embodiment, the article comprises the composition comprising about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1% w/w to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate and about 0.1% w/w to 1% w/w of the hydrocarboxylic acid.

In another embodiment, the article comprises the composition comprising about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1% w/w to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate, about 0.1% w/w to 1% w/w of the hydrocarboxylic acid, about 10% w/w to 35% w/w of the natural sand and about 10% w/w to 50% w/w of the natural aggregate.

In an embodiment, the article is selected from a group comprising paver, light weight block, slab, partition board, tile.

In an embodiment, the article exhibits compressive strength ranging from about 5Mpa to about 40Mpa.

In another embodiment, the article exhibits a compressive strength of about 5Mpa, about 6Mpa, about 8Mpa, about 10Mpa, about 12Mpa, about 14Mpa, about 16Mpa, about 18Mpa, about 20Mpa, about 22Mpa, about 24Mpa, about 26Mpa, about 28Mpa, about 30Mpa, about 32Mpa, about 34Mpa, about 36Mpa, about 38Mpa or about 40Mpa.

The disclosure further describes a process of preparing the said article.

In an embodiment, the process of preparing the article comprises-
mixing the composition comprising metallurgical by product, the alkali metal oxide or the alkali metal hydroxide and the alkali metal sulphate, optionally along with hydrocarboxylic acid, natural sand or natural aggregate, or any combination thereof, with water to obtain a slurry; and
moulding the slurry to a predetermined shape to obtain the article.

In an embodiment, the mixing during the preparation of the article is carried out at a temperature ranging from about 20ºC to 45ºC.

In another embodiment, the mixing during the preparation of the article is carried out at a temperature of about 20ºC, about 22ºC, about 24ºC, about 26ºC, about 28ºC, about 30ºC, about 32ºC, about 34ºC, about 36ºC, about 38ºC, about 40ºC, about 41ºC, about 42ºC, about 43ºC, about 44ºC or about 45ºC.

In an embodiment, the pH of the slurry is ranging from about 12 to 14.

In another embodiment, the pH of the slurry is about 12, about 12.5, about 13, about 13.5 or about 14.

In an embodiment, the pH of the slurry is modified by addition of sodium hydroxide or sodium sulphate or both.

In an embodiment, the slurry under high pH conditions (pH of 12 to 14), both alumina and silica are soluble. Alumina and silica combines with sodium and calcium to form N-A-S-H and C-S-H gels which then forms a solid. Calcium oxide, alumina and sulphate also recombine to form ettringite.
In an embodiment, when the pH of the slurry is greater than 13, there is more dissolution of alumina and silica. The higher the silica and alumina dissolves higher will be the binding phase formation which N-A-S-H, C-S-H and ettringite.

In another embodiment, the process of preparing the article comprises-
mixing the composition comprising about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide and about 0.1% w/w to 10% w/w of the alkali metal sulphate, with water to obtain a slurry; and
moulding the slurry to a predetermined shape to obtain the article.

In another embodiment, the process of preparing the article comprises-
mixing the composition comprising about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate, about 10% w/w to 35% w/w of the natural sand, and about 10% w/w to 50% w/w of the natural aggregate, with water to obtain a slurry; and
moulding the slurry to a predetermined shape to obtain the article.

In another embodiment, the process of preparing the article comprises-
mixing the composition comprising about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate and about 0.1% w/w to 1% w/w of the hydrocarboxylic acid, with water to obtain a slurry; and
moulding the slurry to a predetermined shape to obtain the article.

In another embodiment, the process of preparing the article comprises-
mixing the composition comprising about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate, about 0.1% w/w to 1% w/w of the hydrocarboxylic acid, about 10% w/w to 35% w/w of the natural sand, and about 10% w/w to 50% w/w of the natural aggregate, with water to obtain a slurry; and
moulding the slurry to a predetermined shape to obtain the article.

In another embodiment, the process of preparing the article comprises-
mixing the composition comprising about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1% w/w to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide and about 0.1% w/w to 10% w/w of the alkali metal sulphate, with water to obtain a slurry; and
moulding the slurry to a predetermined shape to obtain the article.

In another embodiment, the process of preparing the article comprises-
mixing the composition comprising about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1% w/w to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate, about 10% w/w to 35% w/w of the natural sand, and about 10% w/w to 50% w/w of the natural aggregate, with water to obtain a slurry; and
moulding the slurry to a predetermined shape to obtain the article.

In another embodiment, the process of preparing the article comprises-
mixing the composition comprising about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1% w/w to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate and about 0.1% w/w to 1% w/w of the hydrocarboxylic acid, with water to obtain a slurry; and
moulding the slurry to a predetermined shape to obtain the article.

In another embodiment, the process of preparing the article comprises-
mixing the composition comprising about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1% w/w to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate, about 0.1% w/w to 1% w/w of the hydrocarboxylic acid, about 10% w/w to 35% w/w of the natural sand, and about 10% w/w to 50% w/w of the natural aggregate, with water to obtain a slurry; and
moulding the slurry to a predetermined shape to obtain the article.

The present disclosure further describes a kit

In an embodiment, the kit comprises-
a) alkali metal oxide or alkali metal hydroxide;
b) alkali metal sulphate;
c) metallurgical by product; and
d) instruction manual.
optionally along with hydrocarboxylic acid, natural sand or natural aggregate, or any combination thereof.

In an embodiment, the kit comprises-
a) alkali metal oxide or alkali metal hydroxide;
b) alkali metal sulphate;
c) metallurgical by product; and
d) instruction manual.

In an embodiment, the kit comprises-
a) alkali metal oxide or alkali metal hydroxide;
b) alkali metal sulphate;
c) metallurgical by product;
d) natural sand;
e) natural aggregate; and
f) instruction manual.

In an embodiment, the kit comprises-
a) alkali metal oxide or alkali metal hydroxide;
b) alkali metal sulphate;
c) metallurgical by product;
d) hydrocarboxylic acid;
e) natural sand;
f) natural aggregate; and
g) instruction manual.

In an embodiment, the metallurgical by product in the kit is selected from a group comprising ground granulated blast furnace slag (GGBFS), steel slag, class C fly ash and class F fly ash, or any combination thereof.

In an embodiment, the alkali metal oxide in the kit is selected from a group comprising potassium oxide and sodium oxide.
In an embodiment, the alkali metal hydroxide in the kit is selected from a group comprising potassium hydroxide and sodium hydroxide.

In an embodiment, the alkali metal sulphate in the kit is selected from a group comprising sodium sulphate, calcium sulphate, potassium sulphate, aluminium sulphate and barium sulphate.

In an embodiment, the hydrocarboxylic acid in the kit is selected from a group comprising maleic acid, citric acid, malonic acid, oxalic acid, succinic acid, and adipic acid and tartaric acid.

In an embodiment, the instruction manual in the kit comprises instruction to prepare the composition described above and instruction to prepare the article described above.

In an embodiment, the instruction in the said instruction manual for preparing the composition is mixing the metallurgical by product, the alkali metal oxide or the alkali metal hydroxide and the alkali metal sulphate, optionally along with hydrocarboxylic acid, natural sand or natural aggregate, or any combination thereof to obtain the composition.

In an embodiment, the instruction in the said instruction manual for preparing the composition is mixing about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide and about 0.1% w/w to 10% w/w of the alkali metal sulphate to obtain the composition.

In another embodiment, the instruction in the said instruction manual for preparing the composition is mixing about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate, about 10% w/w to 35% w/w of the natural sand and about 10% w/w to 50% w/w of the natural aggregate to obtain the composition.

In an embodiment, the instruction in the said instruction manual for preparing the composition is mixing about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate and about 0.1% w/w to 1% w/w of the hydrocarboxylic acid to obtain the composition.

In another embodiment, the instruction in the said instruction manual for preparing the composition is mixing about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate, about 0.1% w/w to 1% w/w of the hydrocarboxylic acid, about 10% w/w to 35% w/w of the natural sand and about 10% w/w to 50% w/w of the natural aggregate to obtain the composition.

In another embodiment, the instruction in the said instruction manual for preparing the composition is mixing 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1% w/w to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide and about 0.1% w/w to 10% w/w of the alkali metal sulphate to obtain the composition.

In another embodiment, the instruction in the said instruction manual for preparing the composition is mixing about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1% w/w to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate about 10% w/w to 35% w/w of the natural sand, and about 10% w/w to 50% w/w of the natural aggregate to obtain the composition.

In another embodiment, the instruction in the said instruction manual for preparing the composition is mixing 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1% w/w to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate and about 0.1% w/w to 1% w/w of the hydrocarboxylic acid to obtain the composition.

In another embodiment, the instruction in the said instruction manual for preparing the composition is mixing about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1% w/w to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate, about 0.1% w/w to 1% w/w of the hydrocarboxylic acid, about 10% w/w to 35% w/w of the natural sand, and about 10% w/w to 50% w/w of the natural aggregate to obtain the composition.

In an embodiment, the instruction in the said instruction manual for preparing the article is-
mixing the metallurgical by product, the alkali metal oxide or the alkali metal hydroxide and the alkali metal sulphate, optionally along with hydrocarboxylic acid, natural sand or natural aggregate, or any combination thereof, with water to obtain a slurry; and
moulding the slurry to a predetermined shape to obtain the article.

In an embodiment, the instruction in the said instruction manual for preparing the article is-
mixing about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide and about 0.1% w/w to 10% w/w of the alkali metal sulphate, with water to obtain the slurry; and
moulding the slurry to a predetermined shape to obtain the article.

In an embodiment, the instruction in the said instruction manual for preparing the article is-
mixing about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate, about 10% w/w to 35% w/w of the natural sand and about 10% w/w to 50% w/w of the natural aggregate, with water to obtain a slurry; and
moulding the slurry to a predetermined shape to obtain the article.

In an embodiment, the instruction in the said instruction manual for preparing the article is-
mixing about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate and about 0.1% w/w to 1% w/w of the hydrocarboxylic acid, with water to obtain the slurry; and
moulding the slurry to a predetermined shape to obtain the article.

In an embodiment, the instruction in the said instruction manual for preparing the article is-
mixing about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate, about 0.1% w/w to 1% w/w of the hydrocarboxylic acid, about 10% w/w to 35% w/w of the natural sand and about 10% w/w to 50% w/w of the natural aggregate, with water to obtain a slurry; and
moulding the slurry to a predetermined shape to obtain the article.

In an embodiment, the instruction in the said instruction manual for preparing the article is-
mixing about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1% w/w to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide and about 0.1% w/w to 10% w/w of the alkali metal sulphate, with water to obtain a slurry; and
moulding the slurry to a predetermined shape to obtain the article.

In an embodiment, the instruction in the said instruction manual for preparing the article is-
mixing about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1% w/w to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate, about 10% w/w to 35% w/w of the natural sand and about 10% w/w to 50% w/w of the natural aggregate, with water to obtain a slurry; and
moulding the slurry to a predetermined shape to obtain the article.

In an embodiment, the instruction in the said instruction manual for preparing the article is-
mixing about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1% w/w to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate and about 0.1% w/w to 1% w/w of the hydrocarboxylic acid, with water to obtain a slurry; and
moulding the slurry to a predetermined shape to obtain the article.

In an embodiment, the instruction in the said instruction manual for preparing the article is-
mixing about 50% w/w to 90% w/w of the ground granulated blast furnace slag, about 1% w/w to 5% w/w the steel slag, about 0.1% w/w to 10% w/w of the alkali metal oxide or hydroxide, about 0.1% w/w to 10% w/w of the alkali metal sulphate, about 0.1% w/w to 1% w/w of the hydrocarboxylic acid, about 10% w/w to 35% w/w of the natural sand and about 10% w/w to 50% w/w of the natural aggregate, with water to obtain a slurry; and
moulding the slurry to a predetermined shape to obtain the article.

In an embodiment, the present disclosure describes a process of preparing the kit.

In an embodiment, the process of preparing the kit comprises assembling the alkali metal oxide or hydroxide, the alkali metal sulphate and the metallurgical by product, placed in independent container, respectively and instruction manual, optionally along with hydrocarboxylic acid, natural sand or natural aggregate, or any combination thereof, placed in independent container, respectively.

In another embodiment, the process of preparing the kit comprises assembling the alkali metal oxide or hydroxide, the alkali metal sulphate and the metallurgical by product, placed in independent container, respectively and instruction manual.

In another embodiment, the process of preparing the kit comprises assembling the alkali metal oxide or hydroxide, the alkali metal sulphate, the metallurgical by product, the natural sand and the natural aggregate placed in independent container, respectively and instruction manual.

In another embodiment, the process of preparing the kit comprises assembling the alkali metal oxide or hydroxide, the alkali metal sulphate, the metallurgical by product and the hydrocarboxylic acid, placed in independent container, respectively and instruction manual.

In another embodiment, the process of preparing the kit comprises assembling the alkali metal oxide or hydroxide, the alkali metal sulphate, the metallurgical by product, the hydrocarboxylic
acid, the natural sand and the natural aggregate placed in independent container, respectively and instruction manual.

Additional embodiments and features of the present disclosure will be apparent to one of ordinary skill in art based upon the description provided. The embodiments provide various features and advantageous details thereof in the description. Descriptions of well-known/conventional methods and techniques are omitted so as to not unnecessarily obscure the embodiments. The examples provided herein are intended merely to facilitate an understanding of ways in which the embodiments provided may be practiced and to further enable those of skill in the art to practice the embodiments provided. Accordingly, the following examples should not be construed as limiting the scope of the embodiments.

EXAMPLES

EXAMPLE 1: Process of preparing the article
To about 470ml of water, about 50 g of potassium hydroxide and about 50 g of sodium sulfate is added and mixed thoroughly to complete the dissolution of alkali in the water to obtain an alkali solution. The alkali solution is added to about 900g of GGBFS, followed by mixing continuously to form a thick paste. To this paste about 2000kg of natural sand and about 3000kg of natural aggregates having particle size of about 12 mm to 20 mm are added, respectively, followed by mixing for about 3 minutes to 4 minutes to obtain a slurry which is lump free. The slurry was casted in a standard 150 mm size cubes and placed at temperature of about 20ºC to 40ºC. All the cubes (article) were demoulded and one set of cubes were placed inside the room for air curing and one set was placed inside the water for wet curing. After the specified intervals of 1 day, 3 days, 7days and 28 days, respectively, the cubes were taken and tested for its compressive strength. The table 1 below illustrates the compressive strength of the said article after air curing and water curing, respectively.
Duration
Days/ hr Compressive Strength
(Mpa) Air Curing Compressive Strength
(Mpa) Water Curing
1 day (24 Hrs) 12.6 -
3 days (72 Hrs) 26.2 26.0
7 days (168 Hrs) 30.6 27.6
28 days (672 Hrs) 34.7 35.8

Table 1:

EXAMPLE 2: Process of preparing the article
To about 540ml of water, about 50 g of potassium hydroxide and about 50 g of sodium sulphate is added and mixed thoroughly to complete the dissolution of alkali in the water to obtain an alkali solution. The alkali solution is added to about 600g of GGBFS and about 300g of ground steel slag(LD), followed by mixing continuously to form a thick paste. To this paste about 2000kg of natural sand and about 3000kg of natural aggregates having particle size of about 12 mm to 20 mm are added, respectively, followed by mixing for about 3 minutes to4 minutes to obtain a slurry which is lump free. The slurry was casted in a standard 150 mm size cubes and placed at a temperature of about 30ºC. All the cubes (article)were demoulded and one set of cubes were placed inside the room for air curing and one set was placed inside the water for wet curing. After the specified intervals of 1 day, 3 days, 7days and 28 days, respectively, the cubes were taken and tested for its compressive strength. The table 2 below illustrates the compressive strength of the said article after air curing and water curing, respectively.
Duration
Days/ hr Duration Compressive Strength
(Mpa) (Water Curing) Compressive Strength
(Mpa) (Air Curing)
1 day (24 Hrs) 24 Hrs 11.6 -
3 days (72 Hrs) 72 Hrs 21.7 20.0
7 days (168 Hrs) 168 Hrs 24.0 23.8
28 days (672 Hrs) 672 Hrs 28.0 29.3
Table 2:
EXAMPLE 3: Process of preparing the article
To about 540ml of water, about 50 g of sodium hydroxide and about 50 g of sodium sulphate is added and mixed thoroughly to complete the dissolution of alkali in the water to obtain an alkali solution. The alkali solution is added to about 600g of GGBFS and about 300g of ground steel slag(LD), followed by mixing continuously to form a thick paste. To this paste about 2000kg of natural sand and about 3000kg of natural aggregate having particle size of about 12 mm to 20 mm are added, respectively, followed by mixing for about 3 minutes to 4 minutes to obtain a slurry which is lump free. The slurry was casted in a standard 150 mm size cubes and placed at temperature of about 30ºC. All the cubes were demoulded, and one set of cubes were placed inside the room for air curing and one set was placed inside the water for wet curing. After the specified intervals of 1 day, 3 days, 7days and 28 days, respectively, the cubes are taken and tested for its compressive strength. The table 3 below illustrates the compressive strength of the said article after air curing and water curing, respectively.
Duration Compressive Strength
(Mpa) (Air Curing) Compressive Strength
(Mpa) (Water Curing)
24 Hrs 10.4 -
72 Hrs 19.0 18.6
168 Hrs 22.2 19.0
672 Hrs 27.6 28.2
Table 3:

EXAMPLE 4: Process of preparing the article
To about 420 ml of water, about 50 g of sodium hydroxide and about 50 g of sodium sulphate is added and mixed thoroughly to complete the dissolution of alkali in the water to obtain an alkali solution. To the alkali solution about 2g of citric acid is added, then the solution is added to about 900 g of GGBFS, followed by mixing continuously to form a slurry. To the slurry about 2000 g of natural sand and 3000 g of aggregates having a particle size of about 12 mm was added and mixed further. The mix was casted in a standard 150 mm size cubes and placed at temperature of about 30ºC. All the cubes were demoulded, and one set of cubes were placed inside the room for air curing and one set was placed inside the water for wet curing. The table 4 below illustrates the compressive strength of the said article after air curing and water curing, respectively.
Duration
Days/ hr Compressive Strength
(Mpa) Air Curing Compressive Strength
(Mpa) Water Curing
1 day (24 Hrs) 11.2 -
3 days (72 Hrs) 24.6 25.2
7 days (168 Hrs) 30.8 29.6
28 days (672 Hrs) 36.9 37.6
Table 4:

EXAMPLE 5: Process of preparing the article
To about 470 ml of water about 50 g of sodium hydroxide and about 50 g of sodium sulphate is added and mixed thoroughly to complete the dissolution of alkali in the water to obtain an alkali solution. The alkali solution is added to about 900 g of GGBFS, followed by mixing continuously to form a slurry. To the slurry about 2000 g of natural sand and 3000 g of aggregates having particle size of about 12 mm was added and mixed further. The mix was casted in a standard 150 mm size cubes and placed at temperature of about 30ºC. All the cubes were demoulded, and one set of cubes were placed inside the room for air curing and one set was placed inside the water for wet curing. The table 5 below illustrates the compressive strength of the said article after air curing and water curing, respectively.
Duration
Days/ hr Compressive Strength
(Mpa) Air Curing Compressive Strength
(Mpa) Water Curing
1 day (24 Hrs) 10.2 -
3 days (72 Hrs) 23.2 24.9
7 days (168 Hrs) 27.6 28.1
28 days (672 Hrs) 32.9 33.4
Table 5:
EXAMPLE 6: Process of preparing the article
To about 300 ml of water, about 35 g of sodium hydroxide and about 50 g of sodium sulphate is added and mixed thoroughly to complete the dissolution of alkali in the water to obtain an alkali solution. To the alkali solution about 1g of citric acid is added, then the solution is added to about 900 g of GGBFS, followed by mixing continuously to form a slurry. The slurry was casted in a standard 150 mm size cubes and placed at temperature of about 20ºC to 40ºC. All the cubes were demoulded, and one set of cubes were placed inside the room for air curing and one set was placed inside the water for wet curing.
EXAMPLE 7: Process of preparing the article
To about 470 ml of water, about 50 g of sodium hydroxide and about 50 g of sodium sulphate is added and mixed thoroughly to complete the dissolution of alkali in the water to obtain an alkali solution. The alkali solution is added to about 700 g of GGBFS and about 200 g of steel slag (LD slag), followed by mixing continuously to form a slurry. To the slurry about 2000 g of natural sand and 3000 g of aggregates having particle size of about 12 mm was added and mixed further. The mix was casted in a standard 150 mm size cubes and placed at temperature of about 30ºC. All the cubes were demoulded, and one set of cubes were placed inside the room for air curing and one set was placed inside the water for wet curing. The table 6 below illustrates the compressive strength of the said article after air curing and water curing, respectively.
Duration
Days/ hr Compressive Strength
(Mpa) Air Curing Compressive Strength
(Mpa) Water Curing
1 day (24 Hrs) 8.6 -
3 days (72 Hrs) 16.4 17.3
7 days (168 Hrs) 22.4 23.5
28 days (672 Hrs) 27.2 26.9
Table 6:
EXAMPLE 8: Process of preparing the article
To about 420 ml of water, about 50 g of sodium hydroxide and about 50 g of sodium sulphate is added and mixed thoroughly to complete the dissolution of alkali in the water to obtain an alkali solution. To the alkali solution about 2 g of citric acid is added, then the solution is added to about 700 g of GGBFS and about 200 g of steel slag (LD slag), followed by mixing continuously to form a slurry. The slurry was casted in a standard 150 mm size cubes and placed at temperature of about 20ºC to 40ºC. All the cubes were demoulded, and one set of cubes were placed inside the room for air curing and one set was placed inside the water for wet curing. The table 7 below illustrates the compressive strength of the said article after air curing and water curing, respectively.
Duration
Days/ hr Compressive Strength
(Mpa) Air Curing Compressive Strength
(Mpa) Water Curing
1 day (24 Hrs) 7.9 -
3 days (72 Hrs) 17.9 18.7
7 days (168 Hrs) 23,2 24.0
28 days (672 Hrs) 28.9 29.1
Table 7:
EXAMPLE 8 (a): Process of preparing the article
To about 9 liters of water 500 g of sodium hydroxide and 500 g of sodium sulphate is added slowly while mixing the same. The solution was kept overnight and stored in a plastic container. The solution was placed inside a cardboard box along with 10kg of Ground granulated blast furnace slag (GGBFS). After 1 week about 550 ml of the solution from the prepared solution was added to 900 g of GGBFS stored along with it to prepare a slurry. To this slurry 2000 g of natural sand and 3000 g of aggregates having particle size of about 12mm to 20 mm were added and mixed. The resultant mix was casted in moulds of different shapes and vibrated. The mix sets into a hard mass after about 24 hours. After about 24 hours the articles were demoulded.

EXAMPLE9: Process of preparing the Kit
a) Assembling the alkali metal oxide or hydroxide, the alkali metal sulphate and the metallurgical by product, placed in independent container, respectively and instruction manual to obtain a kit.

b) Assembling the alkali metal oxide or hydroxide, the alkali metal sulphate, the metallurgical by product, natural sand and natural aggregate placed in independent container, respectively and instruction manual to obtain a kit.

c) Assembling the alkali metal oxide or hydroxide, the alkali metal sulphate, the metallurgical by product and the hydrocarboxylic acid, placed in independent container, respectively and instruction manual to obtain a kit.

d) Assembling the alkali metal oxide or hydroxide, the alkali metal sulphate, the metallurgical by product and the hydrocarboxylic acid, natural sand and natural aggregate placed in independent container, respectively and instruction manual to obtain a kit.