초록 ▼

A crack repair method for pavement and recreational surfaces includes a slip layer formed over a filled crack which prevents the adhesion of at least one stretchable sheet to the crack while wider outer edges of the sheet are bonded to the top pavement surface. Optionally a second wider stretchable

A crack repair method for pavement and recreational surfaces includes a slip layer formed over a filled crack which prevents the adhesion of at least one stretchable sheet to the crack while wider outer edges of the sheet are bonded to the top pavement surface. Optionally a second wider stretchable sheet is adhesively applied over the first sheet. Outer edges of the uppermost stretchable sheet are optionally covered by fiberglass fabric strips. In one aspect, the slip layer is formed of one or more tape strips adhesively joined on one side to the filled crack and to the top surface of the pavement surrounding the filled crack. In another aspect, a slip layer having a non-adherable, exposed surface is carried on the bottom surface of the first sheet, with the first sheet adhered at outer side edges extending outward beyond the side edges of the slip layer to the top surface of pavement surrounding the filled crack by an adhesive layer applied over the top surface of the crack and for a distance beyond the side edges of the crack. The strips and the sheets of stretchable material progressively increase in width and length in the stack buildup.

대표청구항 ▼

1. A method of repairing a crack in a pavement surface comprising the steps of:cleaning the crack of debris; filling the crack with a crack filler hardenable to a solid state; applying a solid slip sheet over the filled crack and for a predetermined distance beyond each side of the crack, the slip s

1. A method of repairing a crack in a pavement surface comprising the steps of:cleaning the crack of debris; filling the crack with a crack filler hardenable to a solid state; applying a solid slip sheet over the filled crack and for a predetermined distance beyond each side of the crack, the slip sheet being greater than four inches wide with one surface adhesively fixed over the filled crack and the pavement and a non-adherable surface on an opening side facing away from the filled crack; applying a first adhesive layer over the slip sheet and for a first distance beyond side edges of the slip sheet; applying a first sheet of stretchable material over and in contact with the first adhesive layer; applying a second adhesive layer over the first sheet of stretchable material to a second distance on a pavement surface beyond the edges of the first sheet; and applying a second sheet of stretchable material over and in contact with the second adhesive layer so that outer edges of the second sheet extend to a full second distance of application of the second adhesive layer on the pavement surface.