Abstract: A method of using an admixture in hydraulic binders, in particular in plaster-based or anhydrous calcium sulphate-based compounds, the admixture being an acrylic polymer with controlled end chains.

Abstract: A gypsum slurry mixer includes a stationary part delimiting a mixing chamber including an upper part with a supply orifice, a lower part, a lateral part with an outlet orifice defining on the lateral part two end points and the outlet orifice is located within the angular sector formed by the centre of the stationary part and by the 2 points; a smooth movable part having an axis of rotation arranged in the stationary part; and an outlet system including a tubular element oriented tangentially to the stationary part along an axis of which the projection in a plane perpendicular to the axis of rotation is located within the sector formed by the acute angle between the projections, in the perpendicular plane, of the two tangents to the lateral part passing through the end points; and a collecting element.

Abstract: A finishing compound having acoustic properties and including in percentage by weight relative to the total weight of the product, at least 25 to 80% of water; 0.1 to 5% of a thickening agent; 0.01 to 0.8% of a dispersing agent; 10 to 60% of a monogranular filler wherein the D50 is greater than or equal to 100 ?m; 0.5 to 6% of binder; and not including a foaming agent; and presenting permeability to air after evaporation of the water from 800 to 6000 mks Rayls.

Abstract: A finishing compound having acoustic properties and including in percentage by weight relative to the total weight of the product, at least 10 to 70% of water; 0.1 to 5% of a foaming agent; 0.1 to 5% of a thickening agent; 35 to 70% of a monogranular filler having a size greater than or equal to 100 ?m and excluding fine fillers; 0.1 to 8% of synthetic or animal fibers; 0.5 to 35% of binder.

Abstract: A method includes using copolymers including at least polyoxyalkylenated monomer units and at least phosphorus-comprising monomer units as water-reducing agent in hydraulic binders.

Abstract: A method of using an admixture in hydraulic binders, in particular in plaster-based or anhydrous calcium sulphate-based compounds, the admixture being an acrylic polymer with controlled end chains.

Abstract: A finishing compound having acoustic properties and including iii percentage by weight relative to the total weight of the product, at least 10 to 70% of water; 0.1 to 5% of a foaming agent; 0.1 to 5% of a thickening agent; 35 to 70% of a monogranular filler having a size greater than or equal to 100 ?m and excluding fine fillers; 0.1 to 8% of synthetic or animal fibres; 0.5 to 35% of binder.

Abstract: A finishing compound having acoustic properties and including in percentage by weight relative to the total weight of the product, at least 25 to 80% of water; 0.1 to 5% of a thickening agent; 0.01 to 0.8% of a dispersing agent; 10 to 60% of a monogranular filler wherein the D50 is greater than or equal to 100 ?m; 0.5 to 6% of binder; and not including a foaming agent; and presenting permeability to air after evaporation of the water from 800 to 6000 mks Rayls.