A system and method for applying a construction material is provided. The method may include mixing blast furnace slag material, geopolymer material, alkali-based powder, and sand at a batching and mixing device to generate a non-Portland cement-based material. The method may also include transporting the non-Portland cement-based material from the mixing device, through a conduit to a nozzle and combining the transported non-Portland cement-based material with liquid at the nozzle to generate a partially liquefied non-Portland cement-based material. The method may further include pneumatically applying the partially liquefied non-Portland cement-based material to a surface.

Chemical-resistant polymer concrete and methods of use thereof are described herein. The polymer concrete comprises a polymer layer and aggregates. The polymer layer is formed by reacting an epoxy vinyl ester resin promoted with cobalt and catalyzed by a peroxide. A concrete substrate is formed by layering the polymer layer and aggregates in thin alternating layers until a desired thickness is achieved. This layering method can reduce shrinkage of the concrete, thereby preventing cracking, deformation or debonding.

A composition of a cement additive material to improve durability of cementitious structures, was disclosed. The cement additive composition includes an admixture of one or more of divalent magnesium metal silicates with capacity to act as a latent hydraulic binder in said composition activated by a hydration process under aqueous conditions, and in particular the divalent metal silicate is magnesium-dominated silicate, preferably comprising mineral groups of olivines, orthopyroxenes, amphiboles, and serpentines or mixtures thereof. The composition also includes chloride ions or brine.

A system and method for storing molten sulfur includes a reinforced concrete vessel, the reinforced concrete vessel being subterranean. The vessel has a floor that is a raft footing formed of reinforced concrete and has a floor interior surface. The vessel also has a ceiling that is a slab of reinforced concrete and has a ceiling interior surface. Sidewalls of the vessel extend between the floor and the ceiling and are formed of reinforced concrete, each sidewall having a sidewall interior surface. A liner is bonded to the floor interior surface, the ceiling interior surface, and each sidewall interior surface. The liner formed of an epoxy vinyl ester resin, and a glass fiber sheet embedded in the epoxy vinyl ester resin.

Described are a composition comprising furfuryl silicates and furfuryl alcohol, especially for use as acid-curable binder, and processes for producing such a composition.

A cementitious protective coating material including a mixture of water, one or more of silicon dioxide/sodium silica pozzolans, anhydrous or hydrous sodium or potassium metasilicate; a rheology enhancing admixture; sodium tetraborate, sodium citrate dihydrate, citric acid, or boric acid; and a micro-fiber.

A cementitious protective coating material including a mixture of water, one or more of silicon dioxide/sodium silica pozzolans, anhydrous or hydrous sodium or potassium metasilicate; a rheology enhancing admixture; sodium tetraborate, sodium citrate dihydrate, citric acid, or boric acid; and a micro-fiber.

A binder for use in leaching a heap of a low-permeability ore containing at least one of the following: copper ore, copper/cobalt ore, nickel laterite ore and uranium ore, wherein the binder comprises an acid-proof cement formed by modifying ordinary Portland cement (OPC) with a supplementary cementitious material (SCM).

A composition of a cement additive material to improve durability of cementitious structures, was disclosed. The cement additive composition includes an admixture of one or more of divalent magnesium metal silicates with capacity to act as a latent hydraulic binder in said composition activated by a hydration process under aqueous conditions, and in particular the divalent metal silicate is magnesium-dominated silicate, preferably comprising mineral groups of olivines, orthopyroxenes, amphiboles, and serpentines or mixtures thereof. The composition also includes chloride ions or brine.

A system and method for applying a construction material is provided. The method may include mixing blast furnace slag material, geopolymer material, alkali-based powder, and sand at a batching and mixing device to generate a non-Portland cement-based material. The method may also include transporting the non-Portland cement-based material from the mixing device, through a conduit to a nozzle and combining the transported non-Portland cement-based material with liquid at the nozzle to generate a partially liquefied non-Portland cement-based material. The method may further include pneumatically applying the partially liquefied non-Portland cement-based material to a surface.