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US 4,428,698 AGranted
Geotextile for pavement overlays
OwnerJerry C. Murphy, Ronald E. Sanders +1inventors
InventorsJerry C. Murphy, Ronald E. Sanders, Warren S. Harmon
Life of this patent
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Abstract
There is disclosed an improved woven geotextile for use immediately under a pavement overlay. It comprises a high bulk entangled yarn interwoven with tape. It has a shrinkage force of less than 100 gm/inch at 300.degree. F. at constant length in both warp and weft directions, most preferably less than 5 gm/inch.
Claims12
An improved resurfaced road comprising (a) a crack-filled old pavement;
- (b) an asphalt concrete layer above said old pavement;
- (c) a geotextile between said old pavement and said asphalt layer, for preventing reflective cracking wherein the improvement comprises:
- said geotextile comprises a core-bulked yarn interwoven with tape fabric firmly embedded between and contacting said old pavement and said asphalt concrete layer, wherein said core-bulked yarn comprises two sets of filaments, said first set being straight to give dimensional stability and forms a core around and through which said second set of filaments is entangled in coils or loops.
Dependencies are inferred from the claim text.