Pavement repair system utilizing solid phase autoregenerative cohesion
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United States of America Patent
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Jan 24, 2017
Grant Date -
Jan 14, 2016
app pub date -
Sep 4, 2015
filing date -
Mar 15, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A method for repairing an aged asphalt pavement is provided. The method involves passing an emitter over the aged asphalt pavement, wherein the emitter generates electromagnetic radiation having a wavelength of from 20 microns to 1 mm that penetrates into the pavement to a depth of at least 2 inches. The asphalt pavement is repaired by disturbing voids and interstices in the damaged pavement without dehydrogenation of the asphalt, such that oligomers present in the aged asphalt are linked together into longer polymer chains to improve ductility of the aged asphalt.
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International Classification(s)
- H05B:ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE ....
- G21K:TECHNIQUES FOR HANDLING PARTICLES OR ELECTROMAGNET....
- C09D:COATING COMPOSITIONS, e.g. PAINTS, VARNISHES, LACQ....
- E01C:CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GR....
- C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C10C:WORKING-UP TAR, PITCH, ASPHALT, BITUMEN; PYROLIGNE....
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