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 method for post-consumer waste segregation, comminution, and creation of a cementitious aggregate, that enables more complete reclamation of zorba from a processing stream segregable from plastic waste. The plastic waste is simultaneously impregnated with silica to create a cementitious aggregate employable with load bearing utility as a substitute for traditional concrete aggregates.

A method for post-consumer waste segregation, comminution, and creation of a cementitious aggregate, that enables more complete reclamation of zorba from a processing stream segregable from plastic waste. The plastic waste is simultaneously impregnated with silica to create a cementitious aggregate employable with load bearing utility as a substitute for traditional concrete aggregates.

The disclosure features methods of forming composite materials, and the composite materials formed by such methods. The methods include forming a mixture that includes a binder material and a filler material, and applying a pressure of at least 10 MPa to the mixture to form the composite material, where the composite material thus formed includes less than 9% by weight of the binder material, less than 18% by volume of the binder material, or both, and has a flexural strength of at least 3 MPa.

The disclosure features methods of forming composite materials, and the composite materials formed by such methods. The methods include forming a mixture that includes a binder material and a filler material, and applying a pressure of at least 10 MPa to the mixture to form the composite material, where the composite material thus formed includes less than 9% by weight of the binder material, less than 18% by volume of the binder material, or both, and has a flexural strength of at least 3 MPa.

Method and apparatus (100) for transforming organic and inorganic solid urban waste into aggregates, comprising an extruding machine connected to a reactor. The extruding machine is formed by an extrusion cylinder (103) through which a piston circulates (104) inside an extrusion cavity (106), which comprises three sections (107, 110, 111) and is fed with a parget obtained after pre-processing the waste. The end (115) of the third section (111) is connected to the reactor (112) through an opening (114). The reactor's longitudinal shaft is formed by a rotatory steel shaft (116) in which some steel blades are arranged (108), whose ends play the roles of cutting, hammering, punching and hydraulic helix as they rotate. Between the end of the blades and the wall of the reactor, there is a clearance of more than 0.1 mm of thickness. The reactor has a discharge valve (300) to discharge the parget present in the boundary area through some openings (304), once it has been processed by a series of pressure, vibration energy and decompression cycles.

The invention: a procedure to manufacture recycled waste concrete, and the recycled waste concrete itself, which is produced through a simple processing of various types of waste and is suitable for serving as a material to manufacture concrete products widely used in the construction industry, where such products include road bases, strip foundations, bases of houses, noise barriers, traffic barriers for highways/roads, lane separators, sandwich panels, to fill formwork and even, depending on the type of waste used, to build walls. The recycled waste concrete contains cement, water and shredded waste aggregates, such as shredded tyres and/or any shredded plastic waste, and/or any shredded scrap metal, and/or any shredded garden waste, and/or shredded mixed waste, and/or shredded fibre waste, and/or any shredded glass waste, and/or shredded and effectively neutralised municipal waste. As organic binding agent it contains homo-, co- and terpolymers, which can be dissolved and/or dispersed in water and do not contain or produce environmentally hazardous, volatile, organic hydrocarbons, and such polymers are made, for instance, by using vinyl chloride, vinyl esters of saturated, unsaturated and aromatic organic acids, vinyl butyral, ethylene, esters of acrylic acid, styrene, alkyl isocyanates, silanes and siloxanes, which may contain polyvinyl alcohols and/or cellulose ethers and/or other protective colloids. The invention is characterised by being produced by simply mixing the ingredients in the proportions given as listed below: 20-50 volume percent cement, 0.3-10 volume percent organic polymer binding agent, 8-30 volume percent water, and 50-100 volume percent shredded waste aggregate.

The invention: a procedure to manufacture recycled waste concrete, and the recycled waste concrete itself, which is produced through a simple processing of various types of waste and is suitable for serving as a material to manufacture concrete products widely used in the construction industry, where such products include road bases, strip foundations, bases of houses, noise barriers, traffic barriers for highways/roads, lane separators, sandwich panels, to fill formwork and even, depending on the type of waste used, to build walls. The recycled waste concrete contains cement, water and shredded waste aggregates, such as shredded tyres and/or any shredded plastic waste, and/or any shredded scrap metal, and/or any shredded garden waste, and/or shredded mixed waste, and/or shredded fibre waste, and/or any shredded glass waste, and/or shredded and effectively neutralised municipal waste. As organic binding agent it contains homo-, co- and terpolymers, which can be dissolved and/or dispersed in water and do not contain or produce environmentally hazardous, volatile, organic hydrocarbons, and such polymers are made, for instance, by using vinyl chloride, vinyl esters of saturated, unsaturated and aromatic organic acids, vinyl butyral, ethylene, esters of acrylic acid, styrene, alkyl isocyanates, silanes and siloxanes, which may contain polyvinyl alcohols and/or cellulose ethers and/or other protective colloids. The invention is characterised by being produced by simply mixing the ingredients in the proportions given as listed below: 20-50 volume percent cement, 0.3-10 volume percent organic polymer binding agent, 8-30 volume percent water, and 50-100 volume percent shredded waste aggregate.

The invention: a procedure to manufacture recycled waste concrete, and the recycled waste concrete itself, which is produced through a simple processing of various types of waste and is suitable for serving as a material to manufacture concrete products widely used in the construction industry, where such products include road bases, strip foundations, bases of houses, noise barriers, traffic barriers for highways/roads, lane separators, sandwich panels, to fill formwork and even, depending on the type of waste used, to build walls. The recycled waste concrete contains cement, water and shredded waste aggregates, such as shredded tyres and/or any shredded plastic waste, and/or any shredded scrap metal, and/or any shredded garden waste, and/or shredded mixed waste, and/or shredded fibre waste, and/or any shredded glass waste, and/or shredded and effectively neutralised municipal waste. As organic binding agent it contains homo-, co- and terpolymers, which can be dissolved and/or dispersed in water and do not contain or produce environmentally hazardous, volatile, organic hydrocarbons, and such polymers are made, for instance, by using vinyl chloride, vinyl esters of saturated, unsaturated and aromatic organic acids, vinyl butyral, ethylene, esters of acrylic acid, styrene, alkyl isocyanates, silanes and siloxanes, which may contain polyvinyl alcohols and/or cellulose ethers and/or other protective colloids. The invention is characterised by being produced by simply mixing the ingredients in the proportions given as listed below: 20-50 volume percent cement, 0.3-10 volume percent organic polymer binding agent, 8-30 volume percent water, and 50-100 volume percent shredded waste aggregate.