A fire proof compound is provided including MgSO4.7H2O) (Mg4Si6O15(OH)2.6H2O) CaO (s)+H.sub.2O (1)⇄Ca(OH).sub.2 (ΔH.sub.r=−63.7 kJ/mol of CaO) (CaSO.sub.4.2H2O) H.sub.4 Mg.sub.2 Si.sub.3 O.sub.10). The compound can be added to a gypsum substrate of a wallboard to manufacture a fire proof wallboard. The compound can also be mixed with a paint to provide a fire proof paint. In certain composition, the compound can also exhibit an electromagnetic field blocking property. An existing wallboard manufacturing process line can be modified to accept the additional process of adding the compound to the gypsum substrate of the wallboard.

An adhesive for moss and a method for preparing the adhesive are provided, wherein the method includes steps of: adding melamine, urea, attapulgite and sepiolite powder into a ball milling tank, and adding milling balls into the ball milling tank for ball milling; then collecting ball-milled materials; adding konjac glucomannan, chitosan and collagen into water and stirring, wherein during stirring, half of the ball-milled materials are added into the water; then adding latex powder, stearic acid and ammonium zirconium carbonate, and stirring, wherein during stirring, the other half of the ball-milled materials are added into the water. The adhesive for moss can be used for bonding moss with sufficient bonding effect, which is environment-friendly and will not harm the moss; meanwhile, the konjac glucomannan, the chitosan, the collagen attapulgite and the sepiolite powder which are contained in the adhesive can provide nutrition for the moss.

An adhesive for moss and a method for preparing the adhesive are provided, wherein the method includes steps of: adding melamine, urea, attapulgite and sepiolite powder into a ball milling tank, and adding milling balls into the ball milling tank for ball milling; then collecting ball-milled materials; adding konjac glucomannan, chitosan and collagen into water and stirring, wherein during stirring, half of the ball-milled materials are added into the water; then adding latex powder, stearic acid and ammonium zirconium carbonate, and stirring, wherein during stirring, the other half of the ball-milled materials are added into the water. The adhesive for moss can be used for bonding moss with sufficient bonding effect, which is environment-friendly and will not harm the moss; meanwhile, the konjac glucomannan, the chitosan, the collagen attapulgite and the sepiolite powder which are contained in the adhesive can provide nutrition for the moss.

The invention relates to a composition for a pasty fill and finishing material, a pasty fill and finishing material, and a method for producing a pasty fill and finishing material. The composition comprises at least one filler, at least one binding agent, and additives, wherein the at least one filler has a density dependent flowability (ff.sub.ρ) value of from 3 to 20.

The invention relates to a composition for a pasty fill and finishing material, a pasty fill and finishing material, and a method for producing a pasty fill and finishing material. The composition comprises at least one filler, at least one binding agent, and additives, wherein the at least one filler has a density dependent flowability (ff.sub.ρ) value of from 3 to 20.

A method for reinforcing a structure comprising the following steps: preparation of UHPFRC comprising a cement precursor mix, of water, a fluidizing agent and metal fibers, transporting the UHPFRC by pumping to a suitable spray nozzle, spraying the mix onto a surface of the structure by the addition of a compressed air stream in the spray nozzle.

A method for reinforcing a structure comprising the following steps: preparation of UHPFRC comprising a cement precursor mix, of water, a fluidizing agent and metal fibers, transporting the UHPFRC by pumping to a suitable spray nozzle, spraying the mix onto a surface of the structure by the addition of a compressed air stream in the spray nozzle.

The invention relates to a refractory dry vibratable mix which sets at room temperature when water is added, for use in metallurgical vessels and comprising a refractory main component, a binder and a retarder.

The invention relates to a refractory dry vibratable mix which sets at room temperature when water is added, for use in metallurgical vessels and comprising a refractory main component, a binder and a retarder.

A method of cementing an annular space between a pipe string and a well bore, the method comprising the steps of (a) providing a cement composition including a calcium-deficient calcium silicate; (b) mixing the cement composition with water to form a cement slurry; (c) mixing the cement slurry composition with carbon dioxide form a foamed cement; and (d) placing the foamed cement in the annular space between the pipe string and the wellbore.