Treating plastic particles for use in concrete includes combining plastic particles with oil to yield a mixture, heating the mixture to yield a heated mixture, cooling the heated mixture to yield a cooled mixture, and removing excess oil from the cooled mixture to yield oil-treated plastic particles (e.g., oil-treated plastic particles for concrete). In one example, the oil is vegetable oil. The vegetable oil can be soybean oil, corn oil, canola oil, safflower oil, peanut oil, olive oil, grape seed oil, cocoa butter, palm oil, rice bran oil, or a combination thereof. The oil can be waste oil (e.g., waste vegetable oil, such as that recovered from restaurants). The plastic particles can be derived from post-consumer plastic, such as recycled plastic. In one example, the post-consumer plastic includes mixed plastics. A concrete composition can include rocks, sand, cement, and the oil-treated plastic particles.

Treating plastic particles for use in concrete includes combining plastic particles with oil to yield a mixture, heating the mixture to yield a heated mixture, cooling the heated mixture to yield a cooled mixture, and removing excess oil from the cooled mixture to yield oil-treated plastic particles (e.g., oil-treated plastic particles for concrete). In one example, the oil is vegetable oil. The vegetable oil can be soybean oil, corn oil, canola oil, safflower oil, peanut oil, olive oil, grape seed oil, cocoa butter, palm oil, rice bran oil, or a combination thereof. The oil can be waste oil (e.g., waste vegetable oil, such as that recovered from restaurants). The plastic particles can be derived from post-consumer plastic, such as recycled plastic. In one example, the post-consumer plastic includes mixed plastics. A concrete composition can include rocks, sand, cement, and the oil-treated plastic particles.

Cement compositions comprising a modified styrenic block copolymers and methods for making/using the same are disclosed. The modified styrenic block copolymer has at least one monoalkenyl arene polymer block A, at least one conjugated diene polymer block B, and at least an epoxy functional group or derivative thereof. The modified styrenic block copolymer has a degree of epoxidation of up to 10-90%. The cement composition can be used in subterranean applications, as well as in building and construction materials. The modified styrenic block copolymers swell upon contact water or other aqueous fluids to seal cracks in the cement.

Cement compositions comprising a modified styrenic block copolymers and methods for making/using the same are disclosed. The modified styrenic block copolymer has at least one monoalkenyl arene polymer block A, at least one conjugated diene polymer block B, and at least an epoxy functional group or derivative thereof. The modified styrenic block copolymer has a degree of epoxidation of up to 10-90%. The cement composition can be used in subterranean applications, as well as in building and construction materials. The modified styrenic block copolymers swell upon contact water or other aqueous fluids to seal cracks in the cement.

Methods, compositions, and systems for cementing are included. The method comprises providing an extended-life cement composition comprising calcium-aluminate cement, water, a cement set retarder, and a delayed-release cement set activator. The method further comprises introducing the extended-life cement composition into a subterranean formation and allowing the extended-life cement composition to set in the subterranean formation. The extended-life cement composition has a thickening time of about two hours or longer.

Methods, compositions, and systems for cementing are included. The method comprises providing an extended-life cement composition comprising calcium-aluminate cement, water, a cement set retarder, and a delayed-release cement set activator. The method further comprises introducing the extended-life cement composition into a subterranean formation and allowing the extended-life cement composition to set in the subterranean formation. The extended-life cement composition has a thickening time of about two hours or longer.

A method for the preparation of a particulate filler with slight dust formation suitable for use in composite materials, wherein the mean particle size of the filler measured by air jet sieving and/or Sedigraph is 300 m and is characterised by the following steps: Providing carrier particles which have an average particle size measured by air jet sieving and/or Sedigraph 300 m, providing a silane, siloxane and/or silicone, providing a paraffin oil, preparing a liquid coating compound by mixing the silane, siloxane and/or silicone with the paraffin oil and optionally further components, coating the carrier particles with the coating compound in a mixing device. The invention also relates to a particulate filler with slight dust formation and the use of such a particulate filler as a filler in a casting slip and/or a composite material, i.e. also a composite material comprising a binder and such a filler.

A method for the preparation of a particulate filler with slight dust formation suitable for use in composite materials, wherein the mean particle size of the filler measured by air jet sieving and/or Sedigraph is 300 m and is characterised by the following steps: Providing carrier particles which have an average particle size measured by air jet sieving and/or Sedigraph 300 m, providing a silane, siloxane and/or silicone, providing a paraffin oil, preparing a liquid coating compound by mixing the silane, siloxane and/or silicone with the paraffin oil and optionally further components, coating the carrier particles with the coating compound in a mixing device. The invention also relates to a particulate filler with slight dust formation and the use of such a particulate filler as a filler in a casting slip and/or a composite material, i.e. also a composite material comprising a binder and such a filler.

An additive for a bituminous binder respectively a bituminous composite material, able to reduce bituminous binder respectively bituminous composite material viscosity when an alternating magnetic field is applied, in particular for healing pavement cracks and in-depth micro-cracks in asphalt, wherein the additive comprises an amount of magnetic iron oxide particles should be improved, in order to reach bituminous composite material respectively a bituminous binder which can be melted in a faster and simplified way, in particular usable for crack healing of asphalt structures on site. This is reached by forming the additive comprising at least a part of magnetic iron oxide nanoparticles with average sizes between 1 nm and 300 nm coated with a fatty acid.

An additive for a bituminous binder respectively a bituminous composite material, able to reduce bituminous binder respectively bituminous composite material viscosity when an alternating magnetic field is applied, in particular for healing pavement cracks and in-depth micro-cracks in asphalt, wherein the additive comprises an amount of magnetic iron oxide particles should be improved, in order to reach bituminous composite material respectively a bituminous binder which can be melted in a faster and simplified way, in particular usable for crack healing of asphalt structures on site. This is reached by forming the additive comprising at least a part of magnetic iron oxide nanoparticles with average sizes between 1 nm and 300 nm coated with a fatty acid.