An anti-dust additive composition for industrial mortars, dry coatings, cements and tile adhesives, includes at least a hydrocarbon fluid, a surfactant and 0.01% to 5% wt of water, preferably from 0.01% to 2% wt, more preferably from 0.01% to 1% wt and even more preferably from 0.05% to 0.5% wt of water. A process of preparation of construction material includes the step of adding the anti-dust additive composition to a material powdery binder. The use of the anti-dust additive composition for decreasing the dust emission during the fabrication of construction material with a material powdery binder and/or during the use of the construction material is also disclosed.

A ready-mixed composition and a pre-mix composition for the production of a concrete material containing sequestered carbon dioxide, a CO.sub.2-containing water used in such compositions, dry-batch and wet-batch processes for sequestering carbon dioxide in concrete material, general method and process for sequestering carbon dioxide in hardening concrete, system and ready-mixed truck to perform such processes and methods for the production of a ready-to-cure carbonated concrete. Compositions comprise a concrete mixture and a CO.sub.2-containing water. The CO.sub.2-containing water comprising water and at least one of blended CO.sub.2 gas bubbles, dissolved H.sub.2CO.sub.3, carbonate ions (CO.sub.3.sup.2), bicarbonate ions (HCO.sup.3−), nanosized alkaline earth metal carbonate and nanosized alkali metal carbonate particles. The concrete mixture comprises a cementitious material, aggregates and at least one CO.sub.2-sequestering chemical for accelerating a CO.sub.2 sequestration speed and maximizing the captured amount of the carbon dioxide.

A ready-mixed composition and a pre-mix composition for the production of a concrete material containing sequestered carbon dioxide, a CO.sub.2-containing water used in such compositions, dry-batch and wet-batch processes for sequestering carbon dioxide in concrete material, general method and process for sequestering carbon dioxide in hardening concrete, system and ready-mixed truck to perform such processes and methods for the production of a ready-to-cure carbonated concrete. Compositions comprise a concrete mixture and a CO.sub.2-containing water. The CO.sub.2-containing water comprising water and at least one of blended CO.sub.2 gas bubbles, dissolved H.sub.2CO.sub.3, carbonate ions (CO.sub.3.sup.2), bicarbonate ions (HCO.sup.3−), nanosized alkaline earth metal carbonate and nanosized alkali metal carbonate particles. The concrete mixture comprises a cementitious material, aggregates and at least one CO.sub.2-sequestering chemical for accelerating a CO.sub.2 sequestration speed and maximizing the captured amount of the carbon dioxide.

A precast concrete structure formed of a cementitious mixture is provided, the cementitious mixture comprising a mixture of: (a) cement, (b) silica fume, (c) supplemental material (limestone and/or slag), (d) masonry sand, (e) water and ice (f) plasticizers and (g) workability admixtures. The result is an improved concrete for use in the formation of long span bridge elements that are simple and safe to manufacture and having improved properties. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

A cementitious mixture to make structures with reduction of gas permeability was disclosed. The mixture includes, cementitious materials, and one or more divalent magnesium-iron silicate that in neutral or basic aqueous solutions have the capacity to be a latent hydraulic binder comprising 2% to 99% of divalent magnesium-iron silicate by weight of total hydraulic solid materials. This can be used to produce a cementitious structure for preventing gas transfer between a first region and a second region. A cement slurry was also disclosed.

A cementitious mixture to make structures with reduction of gas permeability was disclosed. The mixture includes, cementitious materials, and one or more divalent magnesium-iron silicate that in neutral or basic aqueous solutions have the capacity to be a latent hydraulic binder comprising 2% to 99% of divalent magnesium-iron silicate by weight of total hydraulic solid materials. This can be used to produce a cementitious structure for preventing gas transfer between a first region and a second region. A cement slurry was also disclosed.

Novel binder compositions have been discovered that offer an alternative to Portland Cement and reduced carbon dioxide footprint. The compositions typically include the reaction product of a mixture of fly ash, calcium oxide, nanosilica, water, and an effective amount of an activator. The 7, 14, and/or 28 day compressive strength may be at least about 15 MPa or more in some embodiments.

An anti-dust additive composition for industrial mortars, dry coatings, cements and tile adhesives, includes at least a hydrocarbon fluid, a surfactant and 0.01% to 5% wt of water, preferably from 0.01% to 2% wt, more preferably from 0.01% to 1% wt and even more preferably from 0.05% to 0.5% wt of water. A process of preparation of construction material includes the step of adding the anti-dust additive composition to a material powdery binder. The use of the anti-dust additive composition for decreasing the dust emission during the fabrication of construction material with a material powdery binder and/or during the use of the construction material is also disclosed.

An anti-dust additive composition for industrial mortars, dry coatings, cements and tile adhesives, includes at least a hydrocarbon fluid, a surfactant and 0.01% to 5% wt of water, preferably from 0.01% to 2% wt, more preferably from 0.01% to 1% wt and even more preferably from 0.05% to 0.5% wt of water. A process of preparation of construction material includes the step of adding the anti-dust additive composition to a material powdery binder. The use of the anti-dust additive composition for decreasing the dust emission during the fabrication of construction material with a material powdery binder and/or during the use of the construction material is also disclosed.

Biomaterials, in particular bone foams, a process for preparing such materials as well as an applicator for applying the biomaterials directly to the patient's application site, and the use of a composition comprising water, a surfactant and a propellant in the preparation of a bone foam for the preparation of a calcium phosphate foam wherein the foam is obtainable by the mixture of at least two phases, a first phase comprising water and optionally a propellant, a second phase comprising one or more sources for calcium and/or phosphate, and wherein the foaming is performed during the mixture of the at least two phases to provide an improved calcium phosphate foam, process for the preparation of a calcium phosphate foam, use of a composition, solid state structure, calcium phosphate cement foam and bone foam applicator.