SMA and compared the results with other fillers such as stone dust. So we can eliminate the problem of waste products of coconut through our investigation. Summary of the Invention stem
The invention is focus on elimination' of solid waste problem of coconut shell, saving the conventional materials for the next generation, Suitability of different filler materials, Low cost construction of road pavement with use of waste materials. The characterizations of the present invention are as:
1. To found out suitability of coconut shell charcoal as filler in SMA
2. To determine the optimum binder content with respect to maximum stability and flow value of SMA composition.
The present invention has technical advantages like elimination of solid waste
problem, suitability of different filler materials and improvement of pavement of
road with respect to enhance their durability and performance, minimizing the cost
and increasing the efficiency of roads.
Brief Description of the Process
A flow diagram for suitability of coconut shell charcoal as filler in SMA is helpful
in accordance with more understanding about present invention, features and
advantages, references and detailed description accompany in flow diagram, in
which:
Figure 1: A flow diagram for suitability of coconut shell charcoal as filler in SMA.

Detailed Description of the Invention Selection of Materials
The following materials were used:
• Stone - Coarse aggregate,
• Stone - Fine aggregate,
• Mineral filler - stone dust and Coconut shell charcoal (for invention) and
• Binder - bitumen of penetration grade 60/70. Preparation of Coconut Shell Charcoal
The process used for extraction of Coconut shell charcoal is as follows:
• Cutting: First the Coconut is cut down from the tree and dried for some days.
• Ripping: Then the Cover is ripped out such that the shell can be visible properly.
• Burning: The coconut shell is burnt into in open air for about 3-4 hrs and then
the product are incinerated in muffle furnace at required temperature and then
we obtained coconut shell charcoal.
Experimental analysis
First prepared coconut shell charcoal material was sieved. Then, different mixes of
materials were prepared. After mixing of binder, moulds were prepared with
appropriate compaction. Then sizes of moulds, volume, weight etc. were measured
of moulds. The marshal stability and flow value of moulds were measured on
marshal stability apparatus.
Suitability of Coconut Shell Charcoal as Filler in SMA
On the basis of experimental analysis it is observed that the stability value is more
in case of coconut shell charcoal as filler. So it is concluded that coconut shell
charcoal can be used as a substitute for filler as it satisfies all the criteria to be used
as filler.

5. Claims We claim for
1. The concept of use of coconut shell charcoal as a filler material in Stone Mix Asphalt (SMA).
2. The method of preparation of coconut shell charcoal.
3. The methodology for the determination of suitability of coconut shell charcoal as filler in SMA.
4. The proportions used for invention.
5. Decrease in voids of mix due to coconut shell charcoal material.
6. The usefulness of this invention for the suitability of coconut shell charcoal as filler in SMA.