Provided are bitumen nanocomposites. The bitumen nanocomposites have one or more clay, one or more polymer composition, and bitumen. A polymer composition can have one or more polymer and one or more crumb rubber. A polymer may have one or more maleic anhydride group. The bitumen nanocomposites can be used in, for example, road surfacing products and roofing products.

The present application discloses compositions and methods for improving or enhancing the paving or re-paving of asphalt to road surfaces comprising the addition of the composition to the asphalt.

The present application discloses compositions and methods for improving or enhancing the paving or re-paving of asphalt to road surfaces comprising the addition of the composition to the asphalt.

The preparation device includes an upper main conveyor belt, and an aggregate box, a first silane emulsion container and a first paper mill sludge container sequentially arranged above the upper main conveyor belt in a conveying direction. A lower auxiliary conveyor belt is arranged below the upper main conveyor belt, and a second paper mill sludge container and a second silane emulsion container are sequentially arranged between the upper main conveyor belt and the lower auxiliary conveyor belt in a conveying direction of the lower auxiliary conveyor belt. A trolley is arranged at the conveying tail end of the lower auxiliary conveyor belt, a gravity sensing device is arranged below the trolley, a mixer is arranged beside the trolley, and a heater is arranged at the bottom of the mixer.

The preparation device includes an upper main conveyor belt, and an aggregate box, a first silane emulsion container and a first paper mill sludge container sequentially arranged above the upper main conveyor belt in a conveying direction. A lower auxiliary conveyor belt is arranged below the upper main conveyor belt, and a second paper mill sludge container and a second silane emulsion container are sequentially arranged between the upper main conveyor belt and the lower auxiliary conveyor belt in a conveying direction of the lower auxiliary conveyor belt. A trolley is arranged at the conveying tail end of the lower auxiliary conveyor belt, a gravity sensing device is arranged below the trolley, a mixer is arranged beside the trolley, and a heater is arranged at the bottom of the mixer.

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.

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.

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.

A modified bitumen composition includes bitumen and a multiplicity of silica particles. Each silica particle is coupled to an acid component. Treating a modified bitumen includes contacting the modified bitumen with a flow of air and removing the flow of air after a length of time when a penetration grade of the bitumen decreases to a specified value.

A modified bitumen composition includes bitumen and a multiplicity of silica particles. Each silica particle is coupled to an acid component. Treating a modified bitumen includes contacting the modified bitumen with a flow of air and removing the flow of air after a length of time when a penetration grade of the bitumen decreases to a specified value.