Vacuum excavation by John Mee and Vac-ex ltd

COR-EX

The VAC-EX Skid steer COR-EX unit is the ideal solution for keyhole technology repair. The need for extra manually operated equipment such as Jack Hammers or excavators to remove the tarmac/ concrete /stone surface is eliminated, making it both a safer and cheaper option. The Vac-Ex Skid steer Core offers a whole array of applications including:

SACRIFICIAL ANODE INSTALLATION
TEST HOLES (POT-HOLING)
SOIL SAMPLING (ENVIRONMENTAL)
LOW PRESSURE SERVICE CUT OFFS

In operation

• 2m turning radius
• Ideal for tight working areas (Footpaths, car spaces)
• Long working life with fewer moving parts
• ‘Plug and Play’ options for faster coring
• No reversing of trailers
• Cheaper alternative to static mounted units
• Good mobility and precision
• No need for extensive training
• Large no. of additional tooling available – mixer, breaker and sweeper
• Remote control option available
• Pilot-less core

KEYHOLE TECHNOLOGY

Keyhole repair is a technique that can quickly and cost-effectively core an 18” diameter hole through asphalt, asphalt-concrete and reinforced concrete road systems and pavements.

The technique enables contractors to vacuum excavate, view subsurface conditions or repair underground plant from the road surface using long-handled tools, backfill the excavation and replace the core (cookie) to create a permanent reinstatement, all with minimum disruption.

Advantages

• 50% reduction in excavation and pavement restoration costs
• Smaller openings required resulting in less disruption and cost
• Safe exposure of services through vacuum excavation
• Reduction in underground service damage and disruption
• Physically less demanding
• Reduction in potential for workspace injury
• Faster, less intrusive process
• Need for re-instatement gang eliminated
• Quicker reinstatement