Road repair membrane

Details Road repair membrane Road repair membrane

1985-11-18

1987-01-20

Lilling, Herbert J.

Stock material or miscellaneous articles

Patched hole or depression

404 72, 404 74, 404134, 428253, 428254, 428285, 428334, 428489, 428521, 524 68, B32B 326, C08L 9500, E01C 306, E01C 112

Patent

active

046379460

ABSTRACT:
A membrane for the repair of road surfaces, particularly for the retardation of reflective cracking from an old road surface to a newly-applied overlay. The membrane comprises a glass fiber mat impregnated with a blend of asphalt, a block copolymer and a mineral filler. The membrane, in the form of a complete covering or relatively small patches applied directly over a crack, is thermally adhered to the old road and to the overlay by the heat of the overlay itself. The membrane has a low modulus of elasticity, particularly at below freezing temperatures, to minimize crack-propagating stresses and to distribute both thermal and traffic stresses over a broader area of both the old road surface and the overlay.

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