Abstract: The use of calcium aluminate cement in autoclaved cement products, cementitious compositions suitable for forming the autoclaved cement products, and methods for making the cementitious compositions and autoclaved cement products.

Abstract: Disclosed is an ultra-fast setting cement composition including at least amorphous calcium aluminate including by weight, as compared to amorphous calcium aluminate total weight, (a) from 35 to 55% of calcium oxide CaO (C), (b) from 19 to 55% of alumina Al2O3 (A), the C/A molar ratio being higher than or equal to 1.5, preferably higher than or equal to 1.7, characterized in that amorphous calcium aluminate is coated with a surface treatment including an organic compound having at least two hydrophilic functions and one hydrophobic chain. Also disclosed is a method to produce the cement composition, as well as to uses thereof.

Abstract: A fluidizing composition in the form of a liquid or in the form of a powder including at least one superplasticizer chosen from polycarboxylate ethers, characterized in that it includes from 1 to 20 parts by weight of at least one aromatic hydrocarbon sulfonic acid or one of its salts chosen from alkali salts, alkaline-earth salts or one of their mixtures, for 100 parts by weight of the superplasticizer. A method for preparing such fluidizing composition, a dry mortar incorporating the fluidizing composition, as well as plasters prepared from the dry mortar are also described.

Abstract: Disclosed is an ultra-fast setting cement composition including at least amorphous calcium aluminate including by weight, as compared to amorphous calcium aluminate total weight, (a) from 35 to 55% of calcium oxide CaO (C), (b) from 19 to 55% of alumina Al2O3 (A), the C/A molar ratio being higher than or equal to 1.5, preferably higher than or equal to 1.7, characterized in that amorphous calcium aluminate is coated with a surface treatment including an organic compound having at least two hydrophilic functions and one hydrophobic chain. Also disclosed is a method to produce the cement composition, as well as to uses thereof.

Abstract: A fluidizing composition in the form of a liquid or in the form of a powder including at least one superplasticizer chosen from polycarboxylate ethers, characterized in that it includes from 1 to 20 parts by weight of at least one aromatic hydrocarbon sulfonic acid or one of its salts chosen from alkali salts, alkaline-earth salts or one of their mixtures, for 100 parts by weight of the superplasticizer. A method for preparing such fluidizing composition, a dry mortar incorporating the fluidizing composition, as well as plasters prepared from the dry mortar are also described.

Abstract: The invention relates to the use of an organic cerium sol in paints, in particular finishes or varnishes, to improve durability. More particularly, the sol used can be a sol comprising an amphiphilic acid system, an organic phase and particles in the form of agglomerates of crystallites with a d80, advantageously d90, of at most 5 nanometers, 90% (by weight) of agglomerates comprising 1 to 5, preferably 1 to 3 crystallites. The paints incorporating a cerium sol have improved water resistance properties and mechanical properties.

Abstract: The invention concerns a method for preparing a grafted copolymer by polyunsaturated fatty acids in aqueous phase. The invention also concerns a grafted copolymer by polyunsaturated fatty acids obtainable by said method and its uses as binder in coating compositions and in particular in decorative or industrial painting compositions, in adhesive compositions or in mineral binder compositions.

Abstract: The present invention concerns the use, in the surface treatment of waterproofed wood, of an aqueous dispersion comprising at least one latex obtained by emulsion polymerization of a mixture of monomers comprising at least one acrylic monomer B comprising at least one ureido function.

Abstract: The invention relates to an aqueous paint composition, particularly a lacquer or a varnish and an aqueous colloidal dispersion of cerium. Said dispersion has a pH of at least 7 and comprises an organic acid with at least three acid functions of which the third pK is at most 10 or a salt of said acid with ammonia or an amine. Said composition has an improved water content and mechanical properties which improve throughout the life thereof or the duration of the presence thereof on the substrate for protection.

Abstract: The invention relates to an aqueous paint composition, particularly a lacquer or a varnish and an aqueous colloidal dispersion of cerium. Said dispersion has a pH of at least 7 and comprises an organic acid with at least three acid functions of which the third pK is at most 10 or a salt of said acid with ammonia or an amine. Said composition has an improved water content and mechanical properties which improve throughout the life thereof or the duration of the presence thereof on the substrate for protection.

Abstract: The invention relates to the use of an organic cerium sol in paints, in particular finishes or varnishes, to improve durability. More particularly, the sol used can be a sol comprising an amphiphilic acid system, an organic phase and particles in the form of agglomerates of crystallites with a d80, advantageously d90, of at most 5 nanometres, 90% (by weight) of agglomerates comprising 1 to 5, preferably 1 to 3 crystallites. The paints incorporating a cerium sol have improved water resistance properties and mechanical properties.