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 building construction composition, including wall and ceiling textures, joint compounds and coatings, the building construction composition comprising hydrated gypsum, anhydrous gypsum and/or calcium carbonate, a starch and/or polymeric binder and a formaldehyde-free antibacterial agent which contains one or more of the following compounds: copper (II) sulfate pentahydrate, copper sulfate, copper hydroxide, copper oxychloride, or any combination thereof; and methods for preventing microbial growth during manufacturing, storage and usage of the building construction compositions.

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 invention is a method and a kit for preparing and applying an exposed aggregate architectural coating to an existing concrete structure. One method includes preparing a first composition by combining sand with cement and preparing a second composition by combining water with glue. The coating is formed by combining the first composition with the second composition. The coating is then applied to the roughened surface of the pre-existing cement structure by evenly spreading the coating onto the roughened surface to create an even thickness of the coating. Notably, combining the first composition with the second composition occurs prior to applying the coating to the roughened surface of the pre-existing cement structure. To facilitate this method, a kit that includes the first and second compositions may be provided. The resulting applied coating will have an exposed aggregate finish that is durable and suitable for high vehicular and pedestrian traffic areas.

A mortar composition includes: 15-50 wt.-% of a mineral binder, whereby with respect to 100 parts by weight of the mineral binder, the mineral binder includes 40-70 parts by weight of cement and 30-60 parts by weight of a cement substitute based on clay, limestone and gypsum and whereby, with respect to 100 parts by weight of the cement substitute, the cement substitute includes 35-65 parts by weight of clay, especially calcined clay, 1-20 parts by weight of gypsum, and rest to 100 parts by weight of limestone; 50-80 wt.-%, especially 62-65 wt.-%, of aggregates, especially sand; 0-10 wt.-%, especially 0-6 wt.-% of one or more additives; whereby all of the wt.-% are with respect to the dry weight of the mortar composition.

The present disclosure describes modular blocks configured to give the appearance of natural or cut stone. An aesthetic coating composition may be applied to one or more surfaces of a block having a low-density, such as an insulating concrete form (ICF), to form an modular block having the appearance of cut stone. The aesthetic coating composition includes a binder component, such as a cementitious binder made from white Portland cement, or a polymer binder such as an acrylic binder, an aggregate component, such as a limestone aggregate component, and optionally an adhesive component. The aggregate component includes a fine sand portion and a coarse sand portion that effectively enable the appearance of cut stone after finishing of the aesthetic coating surface via sanding, polishing, sandblasting, acid etching, acid finishing, or exposed aggregate finishing.

A material composition for a bio-composite plaster material for use in construction is disclosed. The composition includes a binder, a filler, a polymer, and an additive. The binder includes calcium sulphate hemihydrate, the filler includes cork, the polymer includes vinyl acetate, and the additive includes modified amino acid. The filler is an agro-based bio fiber. The composition provides high thermal insulation. A method of preparing and using the composition includes preparing the composition, mixing the composition with water for a first predetermined amount of time to produce the bio-composite plaster material having a predetermined consistency, and applying a coat of the bio-composite plaster material on a surface during the construction activity.

Sub-ambient daytime radiative cooling (SDRC) coating comprising: an alkali activated metakaolin, BaSO.sub.4, and silica nanospheres, wherein the alkali activated metakaolin is prepared by reaction of metakaolin with an alkali activator comprising waterglass and a strong base selected from the group consisting of LiOH, NaOH, KOH, Ca(OH).sub.2, Li.sub.2O Na.sub.2O, K.sub.2O, CaO, and a mixture thereof, a coating formulation comprising the same, and a method of preparation and use thereof.