Method of making a roadway with a water-impermeable membrane lay

Details Method of making a roadway with a water-impermeable membrane lay Method of making a roadway with a water-impermeable membrane lay

1994-03-25

1995-05-30

Britts, Ramon S.

Road structure, process, or apparatus

Pavement

404 27, 404 28, 404 82, E01C 734

Patent

active

054196531

ABSTRACT:
This invention relates to asphalt concrete paving systems and how they are structured. For more than the last sixty years, such systems have been one integrated structure consisting of (1) one or more "lower supporting courses" and (2) one or more "surface wearing courses". Such systems are integrated structures and, therefore, cracking starting from either the top or bottom will proceed through the entire structure. This invention provides a third type of course, a "separation course" between the "lower supporting courses" and the "surface wearing courses". The "separation course" prevents bonding of the "lower supporting courses" to the "surface wearing courses". This "separation course" is a barrier to stop the cracking at this point. It is also waterproof and will stop water from getting into the "lower support courses" and causing them to fail. The concept of a "separation course" is applicable to both roadways and running tracks.

REFERENCES:
patent: 3819291 (1974-06-01), McConnaughay
patent: 3909143 (1975-09-01), Cushman
patent: 3993412 (1976-11-01), Drane

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