Abstract: The present invention relates to relates to methods of making concrete from cement and, in particular, methods of making usable standard concrete from aged or otherwise substandard cement.

Abstract: The present invention relates to relates to methods of making concrete from cement and, in particular, methods of making usable standard concrete from aged or otherwise substandard cement.

Abstract: A process for producing cement includes combining a cement precursor and a wax, wherein the wax includes alkyl ketene dimer wax and/or alkenyl ketene dimer wax, grinding the cement precursor and the wax to yield cement grains coated with the wax. A cement includes cement powder grains and a coating of wax on the Portland cement powder grains, wherein the wax includes alkyl ketene dimer wax and/or alkenyl ketene dimer wax. A process for making cementitious material includes combining a cement with water to yield a slurry, wherein the cement includes cement powder grains and a coating of wax on the cement powder grains, wherein the wax includes alkyl ketene dimer wax and/or alkenyl ketene dimer wax, and allowing the slurry to set.

Abstract: A macro-cement and associated methods useful for preparing pastes, mortars, concretes and other cement-based materials having high workability, high density, and high strength are disclosed. A method of producing a macro-cement includes cement, supplemental cementitious materials (SCM's), including siliceous submicron-sized particles and nano-sized particles, and polymers in the form of liquid or dry chemical admixtures for concrete. The cement mixture may be used for making ultra-high performance concrete (UHPC).

Abstract: A macro-cement and associated methods useful for preparing pastes, mortars, concretes and other cement-based materials having high workability, high density, and high strength are disclosed. A method of producing a macro-cement includes cement, supplemental cementitious materials (SCM's), including siliceous submicron-sized particles and nano-sized particles, and polymers in the form of liquid or dry chemical admixtures for concrete. The cement mixture may be used for making ultra-high performance concrete (UHPC).

Abstract: A macro-cement and associated methods useful for preparing pastes, mortars, concretes and other cement-based materials having high workability, high density, and high strength are disclosed. A method of producing a macro-cement includes cement, supplemental cementitious materials (SCM's), including siliceous submicron-sized particles and nano-sized particles, and polymers in the form of liquid or dry chemical admixtures for concrete. The cement mixture may be used for making ultra-high performance concrete (UHPC).

Abstract: A macro-cement and associated methods useful for preparing pastes, mortars, concretes and other cement-based materials having high workability, high density, and high strength are disclosed. A method of producing a macro-cement includes cement, supplemental cementitious materials (SCM's), including siliceous submicron-sized particles and nano-sized particles, and polymers in the form of liquid or dry chemical admixtures for concrete. The cement mixture may be used for making ultra-high performance concrete (UHPC).

Abstract: A macro-cement and associated methods useful for preparing pastes, mortars, concretes and other cement-based materials having high workability, high density, and high strength are disclosed. A method of producing a macro-cement includes cement, supplemental cementitious materials (SCM's), including siliceous submicron-sized particles and nano-sized particles, and polymers in the form of liquid or dry chemical admixtures for concrete. The cement mixture may be used for making ultra-high performance concrete (UHPC).

Abstract: An absorbent pad for absorption and containment of oil based products. The absorbent pad includes a plurality of absorbent modules contained within a hydrophobic, porous and flexible top and base material, each absorbent module having a hydrophobic, oil absorbent material sealed therein, each of the plurality of absorbent modules being spaced from adjacent absorbent modules by a gap to allow the absorbent modules to flex and twist with respect to each other as well as permitting oil-based products to flow up through the gap between adjacent absorbent modules.

Abstract: The present disclosure provides hydrocarbon absorbent granules, comprising granulated particles each including a mixture of hydrophobic non-self associating raw cotton sorbent fibers and a binding agent. The granules have an average diameter in a range from about 1 to about 7 cm and have a density in a range from about 0.03 to 0.1 grams per cubic centimeter. The binding agent constitutes from about 0.5 to about 70 percent by weight of granule. The granules are characterized in that they exhibit a sorbency ratio in a range from about 7 to about 30.

Abstract: The present disclosure provides hydrocarbon absorbent granules, comprising granulated particles each including a mixture of hydrophobic non-self associating raw cotton sorbent fibers and a binding agent. The granules have an average diameter in a range from about 1 to about 7 cm and have a density in a range from about 0.03 to 0.1 grams per cubic centimeter. The binding agent constitutes from about 0.5 to about 70 percent by weight of granule. The granules are characterized in that they exhibit a sorbency ratio in a range from about 7 to about 30.

Abstract: An absorbent pad for absorption and containment of oil based products. The absorbent pad includes a plurality of absorbent modules contained within a hydrophobic, porous and flexible top and base material, each absorbent module having a hydrophobic, oil absorbent material sealed therein, each of the plurality of absorbent modules being spaced from adjacent absorbent modules by a gap to allow the absorbent modules to flex and twist with respect to each other as well as permitting oil-based products to flow up through the gap between adjacent absorbent modules.