What is Keyhole Cutting?
The process includes a robust, skid steer with a coring attachment that quickly and accurately cores up to a 20″ in diameter hole through asphalt, asphalt-concrete and reinforced concrete road systems and sidewalks.
Vacuum systems are then used to excavate down to buried plant, and routine service or maintenance is performed from road level using specialized long-handled tools.
Keyhole Technolgy eliminates the need for jackhammers and backhoes, is physically less demanding on work crews, and reduces the cost of these conventional operations.
Because the original core is reinserted after the repair, the pavement restoration costs are limited to the labour and materials necessary to reinstate the core permanently. No temporary patching or repaving is required. This process results in a permanent repair with cost savings over current excavation and restoration practice.