# US 2020/0399840 A1 · Apparatus and method for preparing asphalt and aggregate mixture > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0399840 A1 - Document ID: US20200399840A1 - Status: Published application - Kind: A1 - Application number: 17/008,297 - Filed: 2020-08-31 - Published: 2020-12-24 - Earliest claimed: 2017-02-14 - Inventors: William B. Coe - Web page: https://patentgrep.com/patent/US20200399840A1 ## CPC - E01C 23/065: {Recycling in place or on the road, i.e. hot or cold reprocessing of paving in situ or on the traffic surface, with or without adding virgin material or lifting of salvaged material; Repairs or resurfacing involving at least partial reprocessing of the existing paving (in situ mixing of hydraulic cement concrete E01C19/025; apparatus for in-plant recycling E01C19/1004, E01C19/1036)} - E01C 19/002: {Apparatus for preparing and placing the materials and for consolidating or finishing the paving} - E01C 23/14: for heating or drying foundation, paving, or materials thereon, e.g. paint (E01C23/03 takes precedence; heating or drying devices incorporated in the paving E01C11/26; surface {soil} stabilisation by fusing, calcining or burning soil in situ E01C21/02; for street cleaning E01H1/08; melting snow or ice on surfacing E01H5/10) - E01C 11/005: {Methods or materials for repairing pavings (E01C7/35 takes precedence; for concrete coverings E01C7/147; for bituminous coverings E01C7/187; devices for repair works E01C23/06; repairing bridge floorings E01D22/00)} - E01C: CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR (forming roads or like surfaces by compacting or grading snow or ice E01H) ## Abstract An asphalt and aggregate mixture and methods for preparing and using same are provided which utilize solid phase auto regenerative cohesion and homogenization by liquid asphalt oligopolymerization technologies. The mixtures are suitable for use in installing asphalt/concrete pavement, repairing asphalt/concrete pavement, and providing overlays to existing asphalt/concrete pavement. The slurries can contain recycled asphalt/concrete pavement subject to treatment. ## Claims ### Claim at position 1 1-19. (canceled) ### Claim 20 An emitter system for treating recycled asphalt/concrete pavement, comprising: a first emitter configured to emit a peak wavelength of radiation; a second emitter configured to emit a peak wavelength of radiation; and a helicoid rotor having a hollow tubular axis, wherein the helicoid rotor is configured to convey recycled asphalt/concrete pavement between the emitters, such that, in use, the recycled asphalt/concrete pavement absorbs the radiation emitted by the emitters. ### Claim 21 (depends on 20) The system of claim 20, wherein the first emitter is at least partially coaxial with the second emitter. ### Claim 22 (depends on 21) The system of claim 21, wherein the first emitter is mounted on an outer shell, wherein the second emitter is mounted on a shaft, wherein the outer shell at least partially surrounds the helicoid rotor, and wherein the hollow tubular axis of the helicoid rotor surrounds the shaft supporting the second emitter. ### Claim 23 (depends on 22) The system of claim 22, further comprising a drive hub assembly configured to rotate the helicoid rotor. ### Claim 24 (depends on 23) The system of claim 23, wherein the drive hub assembly is configured to operate the helicoid rotor at a variable speed, so as to achieve, upon exit from the tunnel, a temperature of 250° F. to 290° F. (121° C. to 143° C.) in the recycled asphalt/concrete pavement by absorption of the radiation emitted by the emitters. ### Claim 25 (depends on 24) The system of claim 24, wherein the outer shell comprises ports configured to meter a binder onto the recycled asphalt/concrete pavement. ### Claim 26 (depends on 22) The system of claim 22, wherein the helicoid rotor comprises at least two flights operating at different rotations per minute. ### Claim 27 (depends on 22) The system of claim 22, wherein the outer shell is U-shaped. ### Claim 28 (depends on 22) The system of claim 22, wherein the peak wavelength of the first emitter is different from the peak wavelength of the second emitter. ### Claim 29 (depends on 20) The system of claim 20, wherein the peak wavelength of the first emitter is from 10 nm to 20,000 nm, and wherein the peak wavelength of the second emitter is from 10 nm to 20,000 nm. ### Claim 30 (depends on 20) The system of claim 20, wherein the peak wavelength of the first emitter is from 10,000 nm to 12,000 nm, and wherein the peak wavelength of the second emitter is from 3,000 nm to 5,000 nm. ### Claim 31 (depends on 20) A method for treating recycled asphalt/concrete pavement, comprising: providing the system of claim 20; and irradiating a recycled asphalt/concrete pavement with radiation from the first emitter and second emitter so as to heat the recycled asphalt/concrete pavement to a temperature of 250° F. to 290° F. (121° C. to 143° C.). ### Claim 32 (depends on 31) The method of claim 31, further comprising mixing the irradiated recycled asphalt/concrete pavement with a binder, whereby a hot mix asphalt is obtained. ### Claim 33 (depends on 31) The method of claim 31, further comprising mixing the irradiated recycled asphalt/concrete pavement with an asphalt emulsion, whereby a hot mix asphalt is obtained. ### Claim 34 (depends on 33) The method of claim 33, further comprising applying the hot mix asphalt onto a road base or onto an existing road surface, and subjecting the applied hot mix asphalt to compaction. ### Claim 35 (depends on 32) The method of claim 32, wherein the recycled asphalt/concrete pavement is recovered in a hot in place recycle process, and wherein the mixture containing irradiated recycled asphalt/concrete pavement is placed back onto an old road surface from which it has been removed. ### Claim 36 (depends on 31) A recycled asphalt pavement prepared according to the method of claim 31.