Road structure – process – or apparatus – Process
Patent
1990-08-13
1992-02-18
Britts, Ramon S.
Road structure, process, or apparatus
Process
404107, 404 87, 404 96, E01C 306, E01C 1124, E01C 2302, E01C 1924
Patent
active
050888544
ABSTRACT:
Discloses apparatus and methods for providing a longitudinal joint between a cold (previously laid) and a hot (freshly laid) mat of paving material, such as asphalt, and wherein after the rolling of the paving material the joint region between the cold and the hot mats is of a high and substantially uniform density. To this end, there is provided a quantity of additional fresh (hot) paving material formed into a shaped charge and disposed adjacent the edge of the cold mat section. The quantity of additional fresh paving material contained in the shaped charge and the configuration of the shaped charge are made such that after appropriate rolling of the paving material, the lateral and transverse compaction forces generated force sufficient fresh paving material into the joint region between the cold and hot mat sections to bring the density of the paving material in such joint region to substantially the specified density and substantially the same as that of the cold and hot mat sections. That is, the final resulting density of the entire paved area comprising the two mat sections and the longitudinal join therebetween is substantially uniform.
REFERENCES:
patent: 3970405 (1976-07-01), Swisher, Jr. et al.
patent: 4586889 (1986-05-01), Krohne et al.
patent: 4657430 (1987-04-01), Marionneaux
patent: 4869618 (1989-09-01), Morrison
patent: 5026205 (1991-06-01), Gorski et al.
AW-2R, Inc.
Britts Ramon S.
Claeys Joseph V.
Connolly Nancy
Sullivan Joseph C.
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