Fossil-fuel and rubber-derived waste stream conversion to composite lumber substitutes or barrier members; the composites having material properties and uses of greater value than the solid waste stream components separately or together. Preferred combinations including waste materials derived from waste carpet, waste tires, and waste bituminous roofing shingles, all enormous problems for landfill disposal. In a range of formulation ratios, when combined with a binder, new and marketable products are made from solid waste. Improved resistance to rot, to water, and to weathering is exhibited in synergy with improved compressive and flexural strength, enabling production of a wide variety of useful and environmentally-friendly structural products, for example. Product weight and strength can be engineered to suit and may be structural members for architectural, engineering or agricultural use. Advantageously, the new products themselves can be re-used—by an end-of-life process for making more new products, achieving the capacity to make and remake multigenerational products from solid wastes and to reduce loading of landfills. Production by profile extrusion and by RIM molding are described.

The method for removing an object to be removed is a method for removing an object to be removed in which an object to be removed is removed from a structure including the object to be removed made of a material having fine holes through which a liquid can enter, and a remaining material made of a material having no fine holes through which the liquid can enter and united to the object to be removed, and the method for removing an object to be removed includes: spraying a liquefied fluid that vaporizes after spraying onto the object to be removed.

In at least one embodiment, the inventive technology relates to in-vessel generation of a material from a solution of interest as part of a processing and/or analysis operation. Preferred embodiments of the in-vessel material generation (e.g., in-vessel solid material generation) include precipitation; in certain embodiments, analysis and/or processing of the solution of interest may include dissolution of the material, perhaps as part of a successive dissolution protocol using solvents of increasing ability to dissolve. Applications include, but are by no means limited to estimation of a coking onset and solution (e.g., oil) fractionating.

Crumb rubber obtained from recycled tires is subjected to an interlinked substitution process. The process utilizes a reactive component that interferes with sulfur bonds. The resulting treated rubber exhibits properties similar to those of the virgin composite rubber structure prior to being granulated, and is suitable for use in fabricating new tires, engineered rubber articles, and asphalt rubber for use in waterproofing and paving applications.

Roadway resurfacing often requires removal of the existing asphalt from the roadway for reuse. One method of resurfacing a roadway is hot-in-place recycling. Hot-in-place recycling employs substantial heat to remove the oxidized or aged asphalt. This heat further oxidizes the asphalt, creating a material that lacks many desirable properties (e.g., flowability) and flexibility. The disclosure provides compositions and methods that enhance oxidized asphalt, making it more viable for use in resurfacing roadways. Accordingly, compositions comprising recycled asphalt pavement and a rejuvenating agent are disclosed. The compositions combine a rejuvenator and fresh asphalt flux to make a modified asphalt rejuvenator. The modified rejuvenator is then mixed with recycled asphalt pavement to form a rejuvenated asphalt composition.

Historically, bitumen from oil sands has been carried over land using trucks, pipelines, or by rail, and over water using tankers. Each mode of transportation faces economic or technical challenges of its own. Here there is provided a method for transporting bitumen, comprising: receiving in a dry bulk shipping container a load of discrete pellets with bitumen entrapped into the pellets, wherein the pellets have non-stick outer surfaces configured to prevent the bitumen from sticking to walls of the container when the pellets are carried in the container; and transporting the dry bulk shipping container containing the pellets over a distance. Alternatively or additionally, the pellets may have non-stick outer surfaces configured to prevent the load from caking when the pellets are carried in the container such that the load of bitumen pellets is substantially free-flowing when the transporting is completed.

A modified asphalt binder with improved elastic properties and methods of making such modified asphalt binder. The modified asphalt binders may include one or more of an asphalt binder, a solvent deasphalted (SDA) pitch, a polymeric material, and optionally, a ground tire rubber. The disclosed modified asphalt binders exhibit properties consistent with decreased susceptibility to rutting and thus may be used in asphalt concrete applications.

The present invention refers to a process for the production of an additive composition intended to be mixed into a bituminous conglomerate for road paving. The process includes grinding a mixed waste material containing a mixture of plastic materials, which includes at least one plastic material based on a polyolefin thermoplastic material, washing the ground mixed waste material and separating a portion of low-density material which contains the plastic material based on a polyolefin thermoplastic polymer from the mixed waste material. This portion of low-density material is then ground to a particle size between 10 mm and 20 mm; and then mixed with a material based on polyvinyl butyral. The resultant mixture is further ground to produce an additive composition having a particle size between 4 mm and 6 mm.

A method of forming a paving composition using reclaimed asphalt pavement (RAP) and/or reclaimed asphalt shingle (RAS) is provided. The method comprises: a) providing a rejuvenated asphalt binder consisting essentially of bitumen, a block copolymer and a bio-oil, wherein the rejuvenated asphalt binder has a rotational viscosity at 135 C. equal to or less than 1000 centipoise, an original G*/sin at 64 C. equal to or greater than 1 kPa where G* is the complex shear modulus and is the phase angle; a G*/sin at 64 C. equal to or greater than 2.2 kPa after aging in a Rolling Thin Film Oven (RTFO); b) providing a virgin asphalt; c) heating the virgin asphalt to 160-200 C.; d) providing a RAP and/or RAS; and e) mixing the heated virgin asphalt, RAP/RAS, and the rejuvenated asphalt binder under conditions suitable to form the paving composition.

Scavenging compounds and compositions useful in reducing sulfide emissions from asphalt, such as polymer-treated asphalt, are disclosed. The scavenger compositions may include sulfide-scavenging agents. The scavenger compositions also include a metal-containing compound and optionally a solvent. Any of the compositions, sulfide-scavenging agents and metal-containing compounds may be anhydrous. Methods of using the compositions to reduce hydrogen sulfide emissions from asphalt are also disclosed.