Disclosed herein are fire resistant compositions and articles, for example, in the form of boards, insulation, sheeting, blocks, panels and similar materials of construction. Also disclosed are methods of preparing fire resistant compositions and articles and methods of use thereof.

The present invention relates to geopolymer compositions, sintered geopolymer articles from the geopolymer compositions and processes for manufacturing sintered geopolymer articles from the geopolymer compositions. The invention provides a process of producing a sintered geopolymer article containing a sintered geopolymer composition, wherein the sintered geopolymer composition comprises a sintered geopolymeric matrix, said process comprising the steps of: (1) forming a geopolymer composition comprising at least one aluminosilicate precursor, an alkali activating agent and water, wherein in the geopolymer article, the aluminosilicate precursor particles are at least partially coated by the alkali activating agent; and (2) firing the geopolymer article to sinter the geopolymer composition, wherein the alkali activating agent is capable of at least partially activating and dissolving the aluminosilicate precursor particles during at least a portion of the firing step, and wherein the firing of the geopolymer article includes a geopolymer composition sintering stage.

A spray material for hot and dry spray application with improved corrosion resistance, and a hot and dry spray application method with improved corrosion resistance. A hot and dry spray application method comprises pressure-feeding a mixture comprising a refractory material and a binder, toward a spraying nozzle via a pipe, and adding water to the mixture at a distal end of the spraying nozzle to apply a spray under a hot condition. The mixture contains magnesium limestone having a particle size of 0.075 mm to less than 1 mm, in an amount of 10 mass % to 50 mass %, in 100 mass % of a total amount of the refractory material and the binder. The content of magnesium limestone having a particle size of less than 0.075 mm in 100 mass % of the total amount of the refractory material and the binder is 35 mass % or less (including 0).

A vacuum insulated panel (VIP) and a method of manufacturing a VIP includes a rigid core material having high insulation and low conductivity properties. The rigid core may be made of an inorganic material that effectively mimics a porous silica core material. The core material includes large particles of an inorganic material having a diameter in a range of 10 μm to 50 μm. A portion of these large particles may be ground into small particles having a diameter of less than 1 μm. The small particles are mixed with a portion of the large particles to form a core material which is then mixed with a fiber skeleton and compacted under vacuum along with a fibrous skeleton for structure. The resulting structure provides a porosity ranging from 10 nm to 1 μm in diameter.

The invention relates to a self-setting porous cement foam (2) comprising a protein foam as the structuring agent, the cement foam (2) having pores when set, and the cement foam has a water absorption coefficient of between 0.5 and 7 kg/(m.sup.2.Math.h0.5).

The present disclosure relates to coating compositions, kits, and methods of applying the same, for use with fireproofing materials. The coating compositions are effective to control the drying rate and shrinkage of fireproofing materials. The coating compositions are also able to be applied to fireproofing materials shortly after these materials have been applied to a substrate.

The present disclosure relates to coating compositions, kits, and methods of applying the same, for use with fireproofing materials. The coating compositions are effective to control the drying rate and shrinkage of fireproofing materials. The coating compositions are also able to be applied to fireproofing materials shortly after these materials have been applied to a substrate.

A process for producing a refractory material for use in the superstructure of glass melting tanks contains, as main components, SiO.sub.2, SiC and a binder or binder mixture. A particulate substance, which in the spectral range from 1 μm to 5 μm and at temperatures above 1000° C. has a spectral emission capability which is higher than the spectral emission capability of the matrix of the refractory material, is incorporated into the matrix of the refractory material. A method of increasing the spectral emissivity of shaped, fired, refractory materials, is also provided.

An insulating material, in particular a permeable fire-proof sound insulating material comprising water glass and rubber, in particular recycled rubber, consisting of a harden-able mixture which contains 47 to 61 wt % of rubber granulate, 30 to 50 wt % of aqueous sodium silicate, 0.1 to 0.5 wt % water glass stabiliser, 0.4 to 1.5 wt % water glass hardener, and 2 to 6 wt % of aluminium hydroxide, the surface of the rubber granulate being provided with carbon black, the carbon black constituting 0.1 to 1 wt % of total weight. A method for the production of insulating material, according to which firstly the rubber granules are mixed with an aqueous solution of carbon black so as to coat their entire surface, then is added to the aqueous sodium silicate solution aluminium hydroxide and the whole is mixed so as to form an insulating mixture, and then a water glass stabiliser is added to the aqueous sodium silicate solution, and then to this solution is mixed water glass hardener, with this solution being further stirred for 1 to 10 minutes to form a binder solution, and the insulating mixture is added to the binder solution with constant stirring, and the whole is mixed, and the resulting mixture is then poured into the application site.

The invention relates to a polymer which is obtainable by copolymerizing monomers comprising at least one ethylenically unsaturated monomer which comprises at least one acid group and at least one ethylenically unsaturated monomer (II) having polyether groups with 5 to 35 repeating units and at least one ethylenically unsaturated monomer (III) having polyether groups with 45 to 150 repeating units, the molar ratio of monomer (II) to monomer (III) being between 75:25 and 99.5:0.5. Further disclosed are the use of the polymer of the invention as an admixture for inorganic binder compositions, and a composition in powder form comprising an inorganic binder and the polymer of the invention.