Thermoset ceramic compositions and a method of preparation of such compositions. The compositions are advanced organic/inorganic hybrid composite polymer ceramic alloys. The material combines strength, hardness and high temperature performance of technical ceramics with the strength, ductility, thermal shock resistance, density, and easy processing of the polymer. Consisting of a branched backbone of silicon, alumina, and carbon, the material undergoes sintering at 7 to 300 centigrade for 2 to 94 hours from water at a pH between 0 to 14, humidity of 0 to 100%, with or without vaporous solvents.

A method for precipitating metal waste is characterized in that the waste which contains one or more dissolved metal salts, is mixed with a boron compound, and the pH is adjusted to a value at which precipitation takes place in the presence of precipitation nuclei necessary for the formation of metal borates.

Methods of formulating, premixed cement-based tiling compositions and application of such premixed cement-based tiling compositions as an adhesive or grout. The premixed cement-based tiling compositions include a premixed cementitious formulation having a pH and an alkali activation constituent. The premixed cementitious formulation includes an aluminous or a calcium aluminate cement slurry in an amount of about 35 wt. % to 50 wt. % in combination with one or more filler or modifier materials present in an amount of about 40 wt. % to 65 wt. %. The alkali activation constituent destabilizes the premixed cementitious formulation by increasing the pH thereof to generate a reaction between the premixed cementitious formulation and the alkali activation constituent resulting in the cement-based tiling composition for use as an adhesive or a grout. The alkali composition may be sodium hydroxide supersaturated with lithium carbonate.

Methods of formulating, premixed cement-based tiling compositions and application of such premixed cement-based tiling compositions as an adhesive or grout. The premixed cement-based tiling compositions include a premixed cementitious slurry having a pH and an alkali activation constituent. The premixed cementitious slurry includes an aluminous or a calcium aluminate cement slurry in an amount of about 35 wt. % to 50 wt. % in combination with one or more filler or modifier materials present in an amount of about 40 wt. % to 65 wt. %. The alkali activation constituent destabilizes the premixed cementitious slurry by increasing the pH thereof to generate a reaction between the premixed cementitious slurry and the alkali activation constituent resulting in the cement-based tiling composition for use as an adhesive or a grout. The alkali composition may be sodium hydroxide supersaturated with lithium carbonate.

A dental self-adhesive resin cement is provided comprising a two-component system. A first catalyst component includes one or more acidic monomers. A second base component includes one or more basic fillers. The mixture of the first and second components is polymerizable and has an initial pH that is acidic immediately after mixing and a pH of at least about pH 8 after polymerization.

Systems and methods for treating concrete, which include wetting a surface of concrete with a colloidal silica and, with silica on the surface, finishing the surface. The surface may be finished with a power trowel.

The present invention provides aqueous compositions that are stable after at least a 24 hour period comprising a polysaccharide viscosity modifying additive and more than 60 wt. %, based on the weight of total solids in the compositions of one or more polycarboxylate ether, the compositions comprising an acid chosen from an organic acid having 1 hydroxy group or less, a strong acid containing a single hydrogen, an ascorbic acid, and mixtures thereof, the compositions having a pH of less than the pH of the polycarboxylate ether itself, or from 1.0 to 6.0. The present invention enables stable concentrates of aqueous polycarboxylate ethers and polysaccharide viscosity modifying agents for use in hydraulic binder applications, the compositions having a total solids content of 10 wt. % to as high as 65 wt. %.

[A] curable mixture configured to set in the presence of water, wherein the mixture comprises magnesium oxide, a primary cementitious component and at least one accelerant and at least one second accelerant, the at least one second accelerant is different than the at least one first accelerant, wherein a proportion by weight of the at least one second accelerant is equal to or less than 2% of a proportion of magnesium oxide by weight of the mixture. A proportion by weight of the primary cementitious component is 80% to 120% of a proportion of magnesium oxide by weight.

Systems and methods for treating concrete, which includes the steps of wetting a surface of concrete with a colloidal silica; cutting the softened surface to provide a cut surface; and polishing the cut surface.

Thermoset ceramic compositions and a method of preparation of such compositions. The compositions are advanced organic/inorganic hybrid composite polymer ceramic alloys. The material combine strength, hardness and high temperature performance of technical ceramics with the strength, ductility, thermal shock resistance, density, and easy processing of the polymer. Consisting of a branched backbone of silicon, alumina, and carbon, the material undergoes sintering at 7 to 300 centigrade for 2 to 94 hours from water at a pH between 0 to 14, humidity of 0 to 100%, with or without vaporous solvents.