초록 ▼

A system for recycling pavement constituents in situ, includes a vehicle for traversing the pavement constituents comprising a container for storing and preserving heated pavement rejuvenation materials and at least one heating element adapted to heat the pavement rejuvenation materials above their

A system for recycling pavement constituents in situ, includes a vehicle for traversing the pavement constituents comprising a container for storing and preserving heated pavement rejuvenation materials and at least one heating element adapted to heat the pavement rejuvenation materials above their working temperature. A dispensing element is in communication with the container for dispensing the pavement rejuvenation materials to the pavement constituents. The vehicle also supports at least one mixing element which is adapted to mix in situ the pavement constituents and the heated pavement rejuvenation materials together in such a manner that the pavement constituents are raised to a working temperature. The system also comprises a compaction element for compacting the pavement constituents.

대표청구항 ▼

What is claimed is: 1. A system for recycling pavement constituents in situ, comprising: a vehicle for traversing the pavement constituents; the vehicle comprising a container for storing heated pavement rejuvenation materials; the vehicle further comprising at least one heating element adapted to

What is claimed is: 1. A system for recycling pavement constituents in situ, comprising: a vehicle for traversing the pavement constituents; the vehicle comprising a container for storing heated pavement rejuvenation materials; the vehicle further comprising at least one heating element adapted to heat and preserve the pavement rejuvenation materials above their working temperature; a dispensing element in communication with the container for dispensing the pavement rejuvenation materials into the pavement constituents; and a plurality of mixing elements supported by the vehicle; the mixing elements being adapted to mix in situ the pavement constituents and the heated pavement rejuvenation materials together in such a manner that the pavement constituents are raised to a working temperature, and a compacting element for compacting the resulting mixture of pavement constituents and pavement rejuvenation materials into a new road surface; wherein at least one of the plurality of mixing elements rotate around an axis substantially normal to a road bed and wherein at least one of the plurality of mixing elements is adapted to move independent of another mixing element of the plurality of mixing elements to avoid obstacles on the road bed. 2. The system of claim 1, wherein the vehicle further comprises at least another heating element supported by the vehicle, the heating element being selected from the group consisting of radiant heaters, hot air heaters, convection heaters, microwave heaters, direct flame heaters, and combinations thereof. 3. The system of claim 1, wherein the dispensing element is formed in the mixing element. 4. The system of claim 1, wherein the mixing element is supported by the vehicle in a reducing environment, the reducing environment being adapted to prevent oxidation of at least one of the pavement constituents and the pavement rejuvenation materials. 5. The system of claim 4, wherein the reducing environment further comprises a reduction source selected from the group consisting of an exhaust gas, a rich-burning flame, or a reducing gas. 6. The system of claim 1, wherein the container on the vehicle is adapted to store the heated pavement rejuvenation materials in a reducing environment. 7. The system of claim 1, wherein the working temperature is 200° F. to 1100° F. 8. The system of claim 1, wherein the system further comprises at least one degradation element supported by the vehicle adapted to degraded a paved surface into the pavement constituents. 9. The system of claim 1, wherein the at least one degradation element is spaced within a predetermined distance from the mixing element, wherein the predetermined distance controls the maximum size of the pavement constituents. 10. The system of claim 1, wherein at least a second dispensing element is in communication with a supply selected from the group consisting of water, polymers, surfactant, and combinations thereof, wherein the dispensing element is adapted to dispense the supply into the pavement constituents. 11. The system of claim 1, wherein the mixing element is selected from the group consisting of mills, degradation elements, rakes, tongs, or drums. 12. The system of claim 1, wherein the mixing element moves independently of the other mixing elements in a vertical direction, horizontal direction, circular direction, and/or angular direction with respect to the vehicle. 13. A method for recycling pavement in situ, the method comprising: degrading a paved surface to produce pavement constituents; heating the constituents to a working temperature by simultaneously dispensing heated pavement rejuvenation materials and mixing the pavement constituents with the heated pavement rejuvenation material; and compacting the resulting mixture of pavement constituents and pavement rejuvenation materials into a new road surface; wherein the mixing is accomplished by a plurality of mixing elements adapted to rotate on an axis normal to a road bed and wherein at least one of the plurality of mixing elements is adapted to move independent of another mixing element of the plurality of mixing elements to avoid obstacles in the road bed. 14. The method of claim 13, wherein a maximum constituent size is controlled by the distance between the plurality of mixing elements and a plurality of degradation elements. 15. The method of claim 13, wherein the heating is performed in a reducing environment. 16. The method claim 13, wherein the heated pavement rejuvenation materials are stored in a reducing environment before they are dispensed and mixed with the pavement constituents. 17. The method of claim 13, wherein the working temperature is between 200° F. to 1100° F.