The present invention relates to a method for creating patterns on a surface of the hydraulic binder composition including depositing a stencil onto the surface of the fresh hydraulic binder composition and then applying a deactivating composition (A) on the thus covered surface.

The invention relates mainly to a polymer comprising a hydrocarbon-based main chain bearing carboxylic groups and polyalkoxylated chains and up to 4% by weight of anti-oxidant groups, relative to the weight of the final polymer, grafted to the main chain. It also relates to a method for preparing such a polymer a...

The invention relates to a block copolymer comprising: at least one block A that does not comprise a phosphonate group and comprises at least one poly(alkylene oxide) group and at least one block B produced by the polymerisation of a monomer B1 or a mixture of ethylenically unsaturated monomers comprising at least o...

The invention relates to an anti-filming surface composition for hydraulic binders comprising at least one fat and at least one anti-caking agent  to its preparation method as well as to a method for preparing a hydraulic binder composition suitable for making screeds or self-compacting concretes (SCC) including the...

The invention relates to an emulsion constituted of an oily phase dispersed in an aqueous phase comprising a non quaternary amino surfactant which is a diamine of the following formula; and an acid having a set retarding effect and also to a process for the preparation thereof. It furthermore relates to a process fo...

The present invention mainly relates to an accelerating admixture for hydraulic compositions including in an aqueous solution: the product of the reaction of an alkanolamine with a concentrated strong acid; sulfate anions; and alkali or alkaline earth cations having a pH between 5 and 12. The invention further relat...

The invention relates to: - a method for inerting clays in a hydraulic composition comprising one step consisting of putting a hydraulic composition or a constituent of a hydraulic composition in contact with a compound of the following formula (1): R-COO-, (Mn+)1/n (I), a hydraulic composition comprising said ...

The invention relates to a polymer comprising the following units and side chains comprising R2 groups to the process for preparing same and to the uses thereof as a thinner in hydraulic compositions.

The présent invention relates to the use of an additive System for a hydraulic composition including: at least one polyalkoxylated phosphonate polymer; at least one polyalkoxylated polycarboxylate polymer; and at least one retarding agent of formula (I):C ¾"H(OH)[ H(OH)]h C(0)0¾(I) for improved maintenance of the r...

Plasticizers for aqueous suspensions of mineral particles and hydraulic binder pastes The invention relates to a compound of following formula (I): the preparation method thereof and the use of same. Figure: None

The invention proposes an adjuvant system for a concrete comprising as a combination: (a) a superplasticizer (b) an accelerator; and (c) a rheology extender. A method for preparing prefabricated concrete is also proposed, comprising the step of adding in a suitable amount, respectively: (a) a superplasticizer; ...

The invention chiefly concerns a method for preparing polyalkoxylated polycarboxylates in which the following are caused to react in the presence of water and a catalyst at a temperature of between 120 and 250°C: - at least one polycarboxylic acid obtained by polymerization of at least one unsaturated carboxylic...

The invention relates to a copolymer including a main hydrocarbon chain and side groups comprising carboxyl groups and polyoxyalkyl groups characterized in that the copolymer further comprises gem bisphosphonate groups. The invention also relates to an additive for suspensions of inorganic particles including said c...

The invention is mainly directed to a hydraulic composition comprising: - water; - hydraulic binder; - at least one setting retarder; - at least one polysaccharide; the weight ratio water/hydraulic binder being greater than 1.5. The invention is also directed to the use of said composition as a mixture A in a grout....

The present application relates to the use of a compound having the formula (I) to establish the quantity of clay in a sand and/or to establish the quantity of compound AMAA to be added to a hydraulic binder composition using a sand R1-(OA)n-XR2 (I), in which R1 represents a C1 to C4 alkyl group, which may be linear...

The present invention relates to a method for using a secondary or tertiary alkanolamine for grinding cement, comprising: - forming an inorganic acid salt of the alkanolamine; - adding the salified alkanolamine to a grinder.

The invention relates to a compound of formula (I) and to the use thereof, in particular as a chelating agent for positively charged ions or as a fluidizing agent for hydraulic compositions. The invention also relates to a hydraulic composition comprising a compound of formula (I), at least one hydraulic binder, at ...

The invention relates to a composition (C) comprising 10 to 99 wt.% secondary or tertiary alkanolamine (A) in the form of a salt , preferably an inorganic acid salt, and 1 to 90 wt.% of non-salified alkanolamine (A).

The application relates to a method for grinding a hydraulic binder comprising: a) introducing: - a hydraulic binder, and - a composition B comprising at least one grinding aid B, in the first chamber (12) of a horizontal grinder (11) comprising several chambers (12, 14), including a first chamber (12) and a last ch...

The present application concerns the use of a molecule producing an aqueous solution exhibiting a dispersive portion of more than 25%, for improving workability retention in a hydraulic composition based on a hydraulic binder composition comprising at least one hydraulic binder comprising aluminosilicates and a maxi...

The application describes an admixture containing a polymer as an agent for fluidifying a cementitious composition comprising: - from 20 to 64 wt.% clinker; - from 5 to 60 wt.% activated clay; - from 0 to 35 wt.% limestone; - from 0 to 10 wt.% calcium sulphate, the proportions being relative to the dry weight of the...

The present invention relates to a hydraulic binder composition comprising: - a hydraulic binder comprising at least one alumino-silicate compound, for example blast furnace slag, and an alkaline or sulfate activator and a maximum of 10 wt% of clinker, preferably between 0 and 10 wt% of clinker; - a guanidine salt a...

The present invention relates to the use, for improving the mechanical strength of a hydraulic composition based on a cement composition comprising: - from 20 to 64% by weight of clinker, - from 5 to 60% by weight of activated clay, - from 0 to 35% by weight of limestone, - from 0 to 10% by weight of calcium sulfate...

The present invention relates to a hydraulic binder composition comprising: - a hydraulic binder comprising at least one aluminosilicate compound, preferably blast furnace slag, and an alkaline or sulfate activator and a maximum of 10 wt.% of clinker, preferably between 0 and 10 wt.% of clinker; - nitric acid or one...