METHOD

• Saw cut square the perimeter of damaged area and break out defective concrete leaving only sound concrete.
• Re-compact the sub-base and replace any d.p.m.
• Drill and fix dowel bars with resin anchor grout to tie the repair to the existing concrete where appropriate and place fibreboard to reform the movement joint.
• For free standing repair place fibreboard round the perimeter of repair to separate it from the original. No dowels are needed.
• Prime the sides of the repair area for tied repairs.
• Mix and compact the repair concrete finishing level with the traffic surface.
• Allow to harden and cut the fibreboard to form a recessed joint if required.
• Install joint sealant and allow to cure before trafficking.