Abstract: Described herein is a hydrophobizing agent for mineral materials, including: a polyion complex (i) including at least one polycation (i.1) and at least one polyanion (i.2), where the molar ratio of polycation:polyanion in the polyion complex is ?1; and a silicone compound composition (ii). Also described herein are a process for producing the hydrophobizing agent, a method of using the hydrophobizing agent for the hydrophobizing of mineral binders and/or compositions which contain mineral binders and/or materials which include mineral binders, and a binder composition including one or more mineral binder(s) and a corresponding hydrophobizing agent. Also described herein is a process for hydrophobizing materials which include mineral binders, and a hydrophobized material including mineral binders and obtained by this process. Also described herein is a hydrophobized material which includes mineral binders, including the reaction product of one or more mineral binder(s), the hydrophobizing agent and water.

Abstract: Described herein is a polyion complex, including x mol of polycations and y mol of polyanions, x and y being integers from the range of 1 to 100 and x being ?y or x being ?y. Also described herein is a method for producing a polyion complex, an aqueous solution of a polyion complex obtained using the method, and the aqueous solution of a polyion complex itself. Also described herein is a method of using a polyion complex to modify the surface of polymer fibers and/or carbon fibers and a method for modifying the surface of polymer fibers and/or carbon fibers using an aqueous solution of the polyion complex. Also described herein are surface-modified polymer fibers and/or carbon fibers obtained using the method, the surface-modified polymer fibers and/or carbon fibers themselves, methods of use thereof to produce fiber-modified construction materials, and a fiber-modified construction material including same.

Abstract: Described herein is a hydrophobizing agent for mineral materials, including: a polyion complex (i) including at least one polycation (i.1) and at least one polyanion (i.2), where the molar ratio of polycation:polyanion in the polyion complex is ?1; and a silicone compound composition (ii). Also described herein are a process for producing the hydrophobizing agent, a method of using the hydrophobizing agent for the hydrophobizing of mineral binders and/or compositions which contain mineral binders and/or materials which include mineral binders, and a binder composition including one or more mineral binder(s) and a corresponding hydrophobizing agent. Also described herein is a process for hydrophobizing materials which include mineral binders, and a hydrophobized material including mineral binders and obtained by this process. Also described herein is a hydrophobized material which includes mineral binders, including the reaction product of one or more mineral binder(s), the hydrophobizing agent and water.

Abstract: The present invention relates to a hydrophobizing dispersion gel having reduced active substance content, comprising relative to a total quantity of 100 wt. % the components: (A) 0.1-less than 50 wt. % alkyltrialkoxysilane, (B) 0.1-1.0 wt. % branched polyacrylic acid (C) 0.5-2.0 wt. % trialkyl-amine-N-oxide, (D) 3.0-10 wt. % non-ionic tenside and (E) 10-80 wt. % water. The invention further relates to a method for producing the hydrophobizing dispersion gel and its use for hydrophobizing mineral materials.

Abstract: This invention relates to a process for the production of a homogeneously waterproofed concrete (integrally waterproofed concrete) in which an aqueous hydrolysable, emulsion containing organosilicon compounds is added before curing to the fresh concrete mix prepared from water, inorganic and optionally organic constituents, which emulsion contains at least one alkoxysilane and optionally an organosilicon compound acting as a surfactant.