Two stage process for rejuvenating asphalt-paved road surfaces

Details Two stage process for rejuvenating asphalt-paved road surfaces Two stage process for rejuvenating asphalt-paved road surfaces

E - Fixed Constructions

01

C

94/49

E01C 7/06 (2006.01) E01C 23/06 (2006.01)

Patent

CA 1264422

TWO STAGE PROCESS FOR REJUVENATING ASPHALT-PAVED ROAD SURFACES Abstract of the Disclosure An asphalt-paved road surface is rejuvenated in two stages. First, an exposed upper asphalt layer is heated to a selected temperature and depth. The heated upper asphalt layer is then removed from the road sur- face to expose a lower asphalt layer. In the second stage of the process, the lower asphalt layer is heated to a selected temperature and depth. The lower layer is then either broken up and left in place, or else it too is removed from the road surface. In the former case, asphalt removed from the upper layer is replaced on top of the ruptured lower layer; in the latter case, asphalt removed from the upper layer is comingled with asphalt removed from the lower layer. The removed/ruptured or comingled asphalt (as the case may be) is then pressed back against the road surface to repave the road.

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