A process for forming a concrete structure that exhibits an increased modulus of rupture (MOR) and/or enhanced consistency of the associated coefficient of variation (COV) without increasing the cement content or decreasing the water to cement ratio in the cement mixture. The process provides a cost effective means of improving flextural tensile strength of the concrete structure.

Methods and systems for reclaiming materials from a mixed waste landfill containing coal combustion byproducts (CCBs) are disclosed. The methods and systems can be used to reclaim CCBs from ponds or dry landfills by obtaining mixed waste, crushing the mixed waste to form crushed mixed waste, drying the crushed mixed waste to form dried crushed mixed waste, and combining the dried crushed mixed waste with other compounds to form a blend. The blends can then be incorporated into a cement material, which may be used to form concrete.

Methods and systems for reclaiming materials from a mixed waste landfill containing coal combustion byproducts (CCBs) are disclosed. The methods and systems can be used to reclaim CCBs from ponds or dry landfills by obtaining mixed waste, crushing the mixed waste to form crushed mixed waste, drying the crushed mixed waste to form dried crushed mixed waste, and combining the dried crushed mixed waste with other compounds to form a blend. The blends can then be incorporated into a cement material, which may be used to form concrete.

Cement compositions and associated methods for cementing. An example method includes introducing a cement composition into a wellbore penetrating a subterranean formation, the cement composition comprising a composite material, a cement, and an aqueous fluid. The composite material comprises a monophase amorphous hydraulic binder material and a particulate core. The monophase amorphous hydraulic binder material coats the particulate core. The method further comprises allowing the cement composition to set in the wellbore.

Methods, compositions, and apparatuses are provided herein that utilize polystyrene from recycled products to make a high strength composite concrete that can be used for subgrade utility vaults, utility trenches, etc. Polystyrene is a widely-used plastic that can be collected and then densified at particular parameters including temperature to transform the polystyrene to a usable form. Then, the densified polystyrene is combined with other resin materials and dry materials to form a high-strength concrete material. The amount of densified polystyrene that is combined with the other materials is critical to control shrinkage and expansion of the concrete material during manufacturing.

Methods, compositions, and apparatuses are provided herein that utilize polystyrene from recycled products to make a high strength composite concrete that can be used for subgrade utility vaults, utility trenches, etc. Polystyrene is a widely-used plastic that can be collected and then densified at particular parameters including temperature to transform the polystyrene to a usable form. Then, the densified polystyrene is combined with other resin materials and dry materials to form a high-strength concrete material. The amount of densified polystyrene that is combined with the other materials is critical to control shrinkage and expansion of the concrete material during manufacturing.

A concrete composition that includes (i) a treated palm oil fuel ash, wherein the treated palm oil fuel ash is the only binder present, (ii) a fine aggregate, (iii) a coarse aggregate, and (iv) an alkali activator containing an aqueous solution of sodium hydroxide and sodium silicate. A cured concrete made from the concrete composition is also disclosed with advantageous compressive strength properties.

A concrete composition that includes (i) a treated palm oil fuel ash, wherein the treated palm oil fuel ash is the only binder present, (ii) a fine aggregate, (iii) a coarse aggregate, and (iv) an alkali activator containing an aqueous solution of sodium hydroxide and sodium silicate. A cured concrete made from the concrete composition is also disclosed with advantageous compressive strength properties.

The invention relates to a preparation comprising at least one cellulose ether and/or at least one polysaccharide and at least one fatty alcohol, and to the production and use thereof, in particular in construction materials.

The invention relates to a preparation comprising at least one cellulose ether and/or at least one polysaccharide and at least one fatty alcohol, and to the production and use thereof, in particular in construction materials.