The present invention relates to hydrophobic additives comprising a mixture of one or more inorganic carrier particles, and one or more salts of one or more carboxylic acids or one or more carboxylic acids or in the alternative both of one or more salts of one or more carboxylic acids and one or more carboxylic acids, wherein the particle size distribution (psd) D90 of the mixture measured as powder is from 8 to 150 μm. The present invention further relates to intermediate compounds and mineral binders comprising a hydrophobic additive.

Methods including preparing a mixture including a binder composition containing at least one binder and at least one mineral filler, and curing the mixture to produce a material having improved electrical conductivity at 20° C., where at least 20% by weight of the at least one mineral filler is iron-containing slag.

The disclosure relates to a field of functional coating technologies, and particularly to a durable inorganic super-hydrophilic paint, a preparation method and an application thereof. The durable inorganic super-hydrophilic paint includes the following preparation raw materials in percentage by mass: 30˜60% silicate, 5˜25% zinc oxide, 10˜40% water and 0.1˜5% wetting agent. The coating formed by a durable inorganic super-hydrophilic paint prepared by the method is a flat rigid coating, with good appearance, excellent antifouling self-cleaning and anti-microbial adhesion properties, long-term underwater stability and high mechanical strength. The paint may be applied to building external walls and home inner walls for its antifouling self-cleaning property and may be applied to a field of oil field and oil-water separation for its excellent underwater oleophobic property.

The invention relates to a multi-component composition for the manufacture of polyurethane/urea cementitious hybrid system, comprising at least one isocyanate component selected from the group consisting of monoisocyanate, polyisocyanate and NCO terminated prepolymer, at least one polyol, water, catalyst, at least one acidic additive, and hydraulic binder, wherein the acidic additive is at least one selected from the group consisting of Lewis acids, acid precursors and acidic buffers and is in an amount of 0.01 to 3 wt %, based on the total weight of the composition, to the preparation thereof, and to the use of the composition for the preparation of a flooring, waterproofing, screed, grouting, primer, wall paint, roofing or coating in construction applications.

A hydrophobic, water-redispersible polymer powder composition contains a) a main polymer having a1) more than 60 parts by weight of vinyl laurate monomer units a2) 5 to 30 parts by weight of vinyl acetate monomer units, a3) 5 to 30 parts by weight of ethylene monomer units, a4) 0 to 10 parts by weight of other ancillary monomer units,
where the parts by weight total 100 parts by weight, b) 0.5 to 30% by weight of one or more protective colloids, c) 0 to 30% by weight of antiblocking agent, d) 0 to 20% by weight of organosilicon compound, and e) 0 to 20% by weight of fatty acid or derivatives of the fatty acids,
where the % s by weight are based on the total weight of the polymer a).

The invention involves an exposed aggregate architectural coating to be applied to existing concrete structures. The invention includes a method of preparing and roughening an existing concrete structure surface, mixing the components of the exposed aggregate architectural coating, applying the coating to the existing concrete structure, spreading the coating to a thickness of one-fourth of an inch or thinner, using a trowel, gauge rake, or other method to smoothen the coating, allowing the coating to cure, applying a surface retarder once the exposed aggregate architectural coating has stiffened, allowing the surface retarder to cure for twenty-four hours, and washing the surface with a pressure-washer to remove the surface retarder, then acid-washing the surface to remove residue and create a desired texture. The resulting applied exposed aggregate architectural coating will have an exposed aggregate finish that is durable and suitable for high vehicular and pedestrian traffic areas.

The invention involves an exposed aggregate architectural coating to be applied to existing concrete structures. The invention includes a method of preparing and roughening an existing concrete structure surface, mixing the components of the exposed aggregate architectural coating, applying the coating to the existing concrete structure, spreading the coating to a thickness of one-fourth of an inch or thinner, using a trowel, gauge rake, or other method to smoothen the coating, allowing the coating to cure, applying a surface retarder once the exposed aggregate architectural coating has stiffened, allowing the surface retarder to cure for twenty-four hours, and washing the surface with a pressure-washer to remove the surface retarder, then acid-washing the surface to remove residue and create a desired texture. The resulting applied exposed aggregate architectural coating will have an exposed aggregate finish that is durable and suitable for high vehicular and pedestrian traffic areas.

Cement-based photocatalytic composition, which comprises: (a) at least one cement binder; (b) at least one photocatalyst; (c) at least one cellulose ether; (d) at least one fluidizing agent; (e) at least one first calcareous filler in the form of particles of which at least 95% by weight has a size not greater than 100 m; (f) at least one second calcareous filler in the form of particles of which at least 95% by weight has a size not greater than 30 m; (g) at least one silane supported on an inorganic support in the form of powder. Such composition can be employed as a water paint for obtaining wall coatings with very low thickness, in particular the outdoor applications, which ensure a high and stable photocatalytic effect over time even with relatively low quantities of photocatalyst, generally lower than 10% by weight, with optimal results in terms of uniformity of the coating and resistance of the same to weathering agents.

A system for forming a coating on a substrate is provided. The system includes a first mix having a cement, a filler, a defoamer, a cement retarder, a dispersing agent, or any combination thereof. The system additionally includes a second mix having a fatty acid derivative, a synthetic resin, one or more organosilicon compounds, a pigment, a thickener, or any combination thereof. A coating composition is formed by mixing the first and second mix together. Lastly, the system includes a spraying apparatus that applies a wet film to the substrate wherein the cured coating does not yield to wet-rubs and does not stain (effloresce) with cold distilled water.

The present invention relates to primer compositions in powder form that comprise a dispersion powder based on an acrylate polymer having a glass transition temperature in the range from 50 C. to +30 C. and cement. The compositions of the invention are notable for good water barrier effect, good dust-binding capacity, and a low tendency toward salt efflorescence. The compositions find use in the priming of masonry, concrete, rendered surfaces, abraded render, plaster surfaces, wall blocks, wood, and ceramic tiles. They can also be used as adhesion promoters with nonabsorbent substrates such as glazed ceramic or glass tiles, metal surfaces, or surfaces of plastic.