Abstract: Provided is an ecofriendly snow removal composition using a porous structure of calcium carbonate obtained by removing proteins from starfish to adsorb chlorine ions. The ecofriendly snow removal composition uses a starfish-derived porous structure to adsorb the chlorine ions contained in the snow removal composition, so it can minimize the effects of the chlorine ions on the corrosion on roads, facilities, vehicle bodies, etc. to reduce the environmental contamination in roadside trees, rivers, etc. and also display an equivalent deicing performance to the conventional snow removal composition using calcium carbonate. Further, the novel snow removal composition using starfish are ecofriendly and beneficial in the aspect of cost, as it utilizes starfish that are adversely affecting the ecosystem and difficult to dispose of.

Abstract: The additive for reinforced concrete is a concrete additive for preventing corrosion of steel rebars in steel-reinforced concrete, improving the workability of the cast concrete, and reducing water absorption/permeability in the cast concrete. The reinforced concrete may be a conventional reinforced concrete, such as that formed from a mixture of water, an aggregate and cement, having at least one steel rebar embedded in the mixture. The additive is added to the mixture prior to curing and casting. The additive may for example, have a concentration with respect to the cement of between 0.25 wt % and 1.0 wt %. The additive includes a triazole and a non-ionic surfactant including a poly oxy ethoxylated reaction product of sorbitan and a fatty acid. The triazole and the non-ionic surfactant are dissolved in the solvent.

Abstract: Embodiments of the present invention include de-icing compositions, along with the manufacture of and use of the de-icing compositions. The de-icing compositions achieve a higher melting capacity and melt ice for longer times than conventional de-icing solutions. The de-icing compositions include suspensions of salt instead of solutions. These de-icing suspensions can be applied to ice using liquid application systems. Embodiments include a de-icing composition. The de-icing composition is a suspension. The de-icing composition includes a solvent, which includes water. The de-icing composition may also include a salt component in a total concentration greater than the solubility of the salt component in water at a temperature in a range from 0° F. to 40° F. A portion of the salt component may not be dissolved in the solvent. The undissolved portion of the salt component may include particles with an effective diameter less than 500 ?m. The de-icing composition may further include a suspending agent.

Abstract: The present invention relates to an aluminous cement.

Abstract: The present disclosure provides a cementitious material and production method thereof. The method comprises steps of: (1) dry desulfurization and denitrification of a flue gas with a flue gas absorbent to give a by-product, wherein the flue gas absorbent comprises 10-23 parts by weight of a nano-sized metal oxide, 10-23 parts by weight of a micro-sized metal oxide, and 40-60 parts by weight of magnesium oxide, the nano-sized metal oxide being selected from one or more of the group consisting of SiO2, CaO, Fe2O3, Al2O3, CuO, V2O5 and MnO2, and the micro-sized metal oxide being selected from one or more of the group consisting of SiO2, CaO, Fe2O3, Al2O3, CuO, V2O5 and MnO2; and (2) uniformly mixing the by-product with magnesium oxide, an industrial solid waste and an additive to give the cementitious material.

Abstract: The present invention belongs to the field of composite materials, and particularly to a non-flowable quick-setting phosphate cement repair material with strong cohesive forces and the preparation method thereof. The material comprises the following raw materials in percentage by weight: 20% to 40% of sand, 5% to 12% of ammonium dihydrogen phosphate, 10% to 25% of magnesium oxide, 2% to 8% of fly ash, 30% to 60% of rubber powder, 6% to 10% of silica fume, 0.35% to 0.6% of a polycarboxylate high efficiency water-reducing agent, 1% to 5% of sodium silicate, 1.5% to 2% of a polypropylene fiber, 0.5% to 2% of a retarder, and 8% to 10% of water. The material is used as the repair material for the special positions of bottom boards of bridges or facades of buildings which are damaged, and the repair effect thereof is remarkable.

Abstract: A new paint which makes it possible for a coating film to have both brightness and radiotransparency is demanded. The paint includes a flake, wherein the flake has a sea-island structure of including a plurality of island phases which are formed of metal, and a sea phase that is formed of resin or DLC, the sea phase linking the island phases to each other.

Abstract: The pumpable aqueous concrete mixture has an air pore volume of 10-85 volume-%, that includes a hydrophobic resin at least partially soluble in the concrete mixture and optionally an aggregate material.