Patent ID: 7448176

Claim:
A system for concrete surface repair comprising, in combination: means to cut at least one broken concrete slab having a uniformly planar top surface into quarter sections without affecting existing concrete surfaces surrounding the broken slab; means for removing at least one broken concrete slab in four lifts or less from a space bounded by unaffected surrounding concrete surfaces having a substantially uniform planar surface without impact to the underlying roadbed; means for transporting at least one replacement concrete slab having a uniformly planar top surface and a longitudinal axis; means for placing at least one replacement concrete slab having a uniformly planar top surface into position above the space bounded by unaffected surrounding concrete surfaces; means for guiding at least one replacement concrete slab having a uniformly planar top surface into the space bounded by unaffected surrounding concrete surfaces; means to inject fluid binding material between the roadbed and at least one replacement slab; means to control replacement slab uplift during fluid binding material injection; and means to ensure planar uniformity between at least one replacement slab having a uniformly planar top surface and the planar surfaces of unaffected surrounding concrete surfaces.