2m wide L-Blocs

a. With unit placed in the correct position, an operative drills 8 no. 24mm holes to a depth of 145mm (minimum) into the existing slab through the precast holes in the base of the unit.

b. The dust is cleared out of the holes using compressed air.

c. Chemical resin is pumped into the 8 holes, 8 no. 250mm x 20mm threaded bars are pushed into the wet resin.

d. When the resin has cured 8 x 20mm nuts are tightened down onto standard round washers.