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.

A structural lightweight concrete composition comprising cement, a fine aggregate such as sand, a natural coarse aggregates, such as limestone, scoria or perlite or mixtures thereof, a synthetic coarse aggregate comprising a polymeric material, such as polypropylene beads, an industrial waste byproduct in the form of fine particles, such as silica fume or heavy oil ash, a superplasticizer, such as a polycarboxylate ether and water demonstrating lower thermal conductivity and sufficient compressive strength. Concrete products made therefrom and methods for producing such products are also provided.

A structural lightweight concrete composition comprising cement, a fine aggregate such as sand, a natural coarse aggregates, such as limestone, scoria or perlite or mixtures thereof, a synthetic coarse aggregate comprising a polymeric material, such as polypropylene beads, an industrial waste byproduct in the form of fine particles, such as silica fume or heavy oil ash, a superplasticizer, such as a polycarboxylate ether and water demonstrating lower thermal conductivity and sufficient compressive strength. Concrete products made therefrom and methods for producing such products are also provided.

A method for converting solid waste to a solid fill-material in the form of a multiplicity of compacted pieces, the method comprising mechanically reducing solid-waste piece size to form a solid-waste stream, heating the solid-waste stream, adding an antimicrobial agent and a stabilizer to the solid-waste stream, and compacting the solid-waste stream.

A structural lightweight concrete composition comprising cement, a fine aggregate such as sand, a natural coarse aggregates, such as limestone, scoria or perlite or mixtures thereof, a synthetic coarse aggregate comprising a polymeric material, such as polypropylene beads, an industrial waste byproduct in the form of fine particles, such as silica fume or heavy oil ash, a superplasticizer, such as a polycarboxylate ether and water demonstrating lower thermal conductivity and sufficient compressive strength. Concrete products made therefrom and methods for producing such products are also provided.

A structural lightweight concrete composition comprising cement, a fine aggregate such as sand, a natural coarse aggregates, such as limestone, scoria or perlite or mixtures thereof, a synthetic coarse aggregate comprising a polymeric material, such as polypropylene beads, an industrial waste byproduct in the form of fine particles, such as silica fume or heavy oil ash, a superplasticizer, such as a polycarboxylate ether and water demonstrating lower thermal conductivity and sufficient compressive strength. Concrete products made therefrom and methods for producing such products are also provided.

A structural lightweight concrete composition comprising cement, a fine aggregate such as sand, a natural coarse aggregates, such as limestone, scoria or perlite or mixtures thereof, a synthetic coarse aggregate comprising a polymeric material, such as polypropylene beads, an industrial waste byproduct in the form of fine particles, such as silica fume or heavy oil ash, a superplasticizer, such as a polycarboxylate ether and water demonstrating lower thermal conductivity and sufficient compressive strength. Concrete products made therefrom and methods for producing such products are also provided.

A structural lightweight concrete composition comprising cement, a fine aggregate such as sand, a natural coarse aggregates, such as limestone, scoria or perlite or mixtures thereof, a synthetic coarse aggregate comprising a polymeric material, such as polypropylene beads, an industrial waste byproduct in the form of fine particles, such as silica fume or heavy oil ash, a superplasticizer, such as a polycarboxylate ether and water demonstrating lower thermal conductivity and sufficient compressive strength. Concrete products made therefrom and methods for producing such products are also provided.

A structural lightweight concrete composition comprising cement, a fine aggregate such as sand, a natural coarse aggregates, such as limestone, scoria or perlite or mixtures thereof, a synthetic coarse aggregate comprising a polymeric material, such as polypropylene beads, an industrial waste byproduct in the form of fine particles, such as silica fume or heavy oil ash, a superplasticizer, such as a polycarboxylate ether and water demonstrating lower thermal conductivity and sufficient compressive strength. Concrete products made therefrom and methods for producing such products are also provided.