C08L95/00

Methods and compositions for asphalt rejuvenation

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.

ROOFING SHINGLE COMPOSITION

A roofing material is provided that comprises a coating composition including a filler and a bituminous composition comprising at least one bitumen base, at least one compound of general Formula (I): Ar1-R.sub.1—Ar.sub.2 (I), and at least one compound of general formula (II): R.sub.2—(NH).sub.nCONH—X—(NHCO).sub.p(NH).sub.n—R′.sub.2 (II). The invention also concerns a process for the preparation of a roofing material comprising the coating composition.

ROOFING SHINGLE COMPOSITION

A roofing material is provided that comprises a coating composition including a filler and a bituminous composition comprising at least one bitumen base, at least one compound of general Formula (I): Ar1-R.sub.1—Ar.sub.2 (I), and at least one compound of general formula (II): R.sub.2—(NH).sub.nCONH—X—(NHCO).sub.p(NH).sub.n—R′.sub.2 (II). The invention also concerns a process for the preparation of a roofing material comprising the coating composition.

REJUVENATING AGENTS FOR ASPHALT RECYCLING

The present invention relates to a binder composition comprising a bituminous binder and at least one rejuvenating agent. The present invention further relates to a method for evaluating the efficiency of a rejuvenating agent in a binder composition.

REJUVENATING AGENTS FOR ASPHALT RECYCLING

The present invention relates to a binder composition comprising a bituminous binder and at least one rejuvenating agent. The present invention further relates to a method for evaluating the efficiency of a rejuvenating agent in a binder composition.

REJUVENATING AGENTS FOR ASPHALT RECYCLING

The present invention relates to a binder composition comprising a bituminous binder and at least one rejuvenating agent. The present invention further relates to a method for evaluating the efficiency of a rejuvenating agent in a binder composition.

METHOD AND SYSTEM FOR QUANTIFYING DEGREE OF BLENDING OF VIRGIN AND AGED ASPHALT IN HOT RECYCLED ASPHALT MIXTURES (HRAM)
20230213550 · 2023-07-06 ·

The present disclosure provides a method and system for quantifying a degree of blending of virgin and aged asphalt in HRAM. The method includes the following steps: first, constructing a relational equation between the microscale modulus of recycled asphalt in a fully blended state and the content of the aged asphalt; measuring the microscale modulus of the recycled asphalt, the microscale modulus of the aged asphalt, the microscale modulus of the virgin asphalt, and the content of the aged asphalt in the HRAM in situ; inputting the dates above into the relational equation to obtain the microscale modulus of the recycled asphalt in the fully blended state; and based on the microscale modulus of the recycled asphalt measured in situ and the microscale modulus of the recycled asphalt in the fully blended state, obtaining the degree of blending of the virgin and aged asphalt in the HRAM.

METHOD AND SYSTEM FOR QUANTIFYING DEGREE OF BLENDING OF VIRGIN AND AGED ASPHALT IN HOT RECYCLED ASPHALT MIXTURES (HRAM)
20230213550 · 2023-07-06 ·

The present disclosure provides a method and system for quantifying a degree of blending of virgin and aged asphalt in HRAM. The method includes the following steps: first, constructing a relational equation between the microscale modulus of recycled asphalt in a fully blended state and the content of the aged asphalt; measuring the microscale modulus of the recycled asphalt, the microscale modulus of the aged asphalt, the microscale modulus of the virgin asphalt, and the content of the aged asphalt in the HRAM in situ; inputting the dates above into the relational equation to obtain the microscale modulus of the recycled asphalt in the fully blended state; and based on the microscale modulus of the recycled asphalt measured in situ and the microscale modulus of the recycled asphalt in the fully blended state, obtaining the degree of blending of the virgin and aged asphalt in the HRAM.

Hybrid crude oil and methods of making the same using petroleum-based waste stream products

A hybrid crude oil and methods of making the same using man-made or natural petroleum-based waste stream products. The hybrid crude oil is composed of an oil-based solution and petroleum-based coatings that were extracted from a petroleum-containing material. This hybrid crude oil is created by elevating the temperature of the oil-based solution to or above an elevated temperature, i.e., the melting or phase-change temperature of the petroleum-based coating so that it can become liquified and dissolve into the oil-based solution and create the hybrid crude oil. The petroleum-containing material is submerged into the heated oil-based solution to cause the petroleum-based coatings to dissolve into the heated oil-based solution at the elevated temperature. The liquid oil-based solution at the elevated temperature creates an environmental seal to the petroleum-based coatings to protect them from burning, carburizing, or degrading, until the liquid oil-based solution is capable of providing the necessary thermal energy for the phase change of the petroleum-based coating from a solid state to a liquid state. At which time, the petroleum-based coatings safely phase-changes into a liquid and dissolves into the oil-based solution, creating the hybrid crude oil.

Hybrid crude oil and methods of making the same using petroleum-based waste stream products

A hybrid crude oil and methods of making the same using man-made or natural petroleum-based waste stream products. The hybrid crude oil is composed of an oil-based solution and petroleum-based coatings that were extracted from a petroleum-containing material. This hybrid crude oil is created by elevating the temperature of the oil-based solution to or above an elevated temperature, i.e., the melting or phase-change temperature of the petroleum-based coating so that it can become liquified and dissolve into the oil-based solution and create the hybrid crude oil. The petroleum-containing material is submerged into the heated oil-based solution to cause the petroleum-based coatings to dissolve into the heated oil-based solution at the elevated temperature. The liquid oil-based solution at the elevated temperature creates an environmental seal to the petroleum-based coatings to protect them from burning, carburizing, or degrading, until the liquid oil-based solution is capable of providing the necessary thermal energy for the phase change of the petroleum-based coating from a solid state to a liquid state. At which time, the petroleum-based coatings safely phase-changes into a liquid and dissolves into the oil-based solution, creating the hybrid crude oil.