Road structure – process – or apparatus – Process – In situ treatment of earth or roadway
Patent
1978-06-30
1981-02-24
Byers, Jr., Nile C.
Road structure, process, or apparatus
Process
In situ treatment of earth or roadway
404 79, 404 95, E01C 706
Patent
active
042524873
ABSTRACT:
Pavement (12) is rapidly heated in depth by irradiation with microwave energy accompanied by supplemental surface heating which counteracts an inverted temperature gradient otherwise produced by microwave heating. Energy efficiency is increased by performing the surface heating with thermal energy derived from the exhaust gases of a motor (19) which drives a generator (18) to energize the microwave source (68). An energy applicator (36) simultaneously applies both the microwave energy and hot gas to a selected area of pavement while blocking release of microwave energy in upward and outward directions and is preferably attached to a mobile support (37) through support and positioning linkage (38) which enables shifting of the applicator between localized areas of pavement to be heated. A variety of paving operations and pavement repair operations are facilitated by enabling an efficient deep rapid heating of deteriorated pavement or surfaces to be paved or repaved or to which an additional layer of pavement is to be applied.
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"Microwave Heating For Road Maintenance," Syracuse Univ. Research Corp., 3/76.
"The Journal of Microwave Power"-Canada, 9(4)-1974; By Bosisio, Spooner, Granger.
Blurton Claire M.
Blurton Richard R.
Byers Jr. Nile C.
Laurmann Giselle V.
Microdry Corporation
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