Process for the preparation of an additive comprising TiO.sub.2 particles dispersed on a support of pseudo-layered phyllosilicate-type, comprising the dispersion in water of the support, the acid activation of the support and the high-shear dispersion of the support with the TiO.sub.2 particles Use of the particles obtained by this process as additives with photocatalytic activity for water purification and disinfection, for purification of polluted gas streams and to provide materials, in particular construction materials, with self-cleaning, biocide, deodorization and/or pollution reduction properties in the presence of air and ultraviolet light.

Process for the preparation of an additive comprising TiO.sub.2 particles dispersed on a support of pseudo-layered phyllosilicate-type, comprising the dispersion in water of the support, the acid activation of the support and the high-shear dispersion of the support with the TiO.sub.2 particles Use of the particles obtained by this process as additives with photocatalytic activity for water purification and disinfection, for purification of polluted gas streams and to provide materials, in particular construction materials, with self-cleaning, biocide, deodorization and/or pollution reduction properties in the presence of air and ultraviolet light.

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.

A soil solidification material based on solid waste and bioenzyme, and a preparation method thereof are disclosed. The soil solidification material is composed of the following components in parts by weight: recycled aggregate 22-35 parts, steel slag 20-30 parts, high-calcium fly ash 16-24 parts, the bioenzyme 5-15 parts, an inorganic adsorbent 10-18 parts, an organic adsorbent 8-20 parts, industrial waste gypsum 25-35 parts, an activator 20-30 parts, sodium citrate 1-3 parts, and slaked lime 0.02-0.2 parts. The present disclosure adopts the recycled aggregate, the steel slag, the industrial waste gypsum and the high-calcium fly ash as the main components of the soil solidification material to reduce the cost. The soil solidification material of the present disclosure prepared by optimizing the proportion is capable of significantly improving the engineering properties of the soil or the mixed contaminated soil, and has significant economic and environmental benefits.

A soil solidification material based on solid waste and bioenzyme, and a preparation method thereof are disclosed. The soil solidification material is composed of the following components in parts by weight: recycled aggregate 22-35 parts, steel slag 20-30 parts, high-calcium fly ash 16-24 parts, the bioenzyme 5-15 parts, an inorganic adsorbent 10-18 parts, an organic adsorbent 8-20 parts, industrial waste gypsum 25-35 parts, an activator 20-30 parts, sodium citrate 1-3 parts, and slaked lime 0.02-0.2 parts. The present disclosure adopts the recycled aggregate, the steel slag, the industrial waste gypsum and the high-calcium fly ash as the main components of the soil solidification material to reduce the cost. The soil solidification material of the present disclosure prepared by optimizing the proportion is capable of significantly improving the engineering properties of the soil or the mixed contaminated soil, and has significant economic and environmental benefits.

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 plaster composition includes a joint compound/drywall mud and from about 0.5 wt % to about 10 wt % silica (e.g., hydrophilic fumed silica). The plaster composition may be a repair composition. The repair composition may be dispensed as an aerosol using a propellant. The repair composition may be useful for repairing “popcorn” textured ceilings.

A plaster composition includes a joint compound/drywall mud and from about 0.5 wt % to about 10 wt % silica (e.g., hydrophilic fumed silica). The plaster composition may be a repair composition. The repair composition may be dispensed as an aerosol using a propellant. The repair composition may be useful for repairing “popcorn” textured ceilings.