FP-96 English Version - Eastern Federal Lands Highway Division

Section 501(c) Defective area correction. Correct defective areas from (a) and (b)above. Obtain approval for the proposed method of correction. Remeasurecorrected areas according to (a) and (b) above. The smoothness pay factorwill be recomputed after measurement.501.13 Full-Depth, Full-Width Patching. Construct the pavement patch toprovide a similar appearance to the existing pavement. Prepare test panelsusing the same materials proposed for the work.Begin pavement work after the test panels have been inspected and approvedfor appearance and the concrete mix design 28-day compressive strength isverified.(a) Concrete removal. For mesh reinforced, plain dowel, or plain jointedconcrete pavement, saw cut slabs full depth, leaving vertical edges at thelimits of the patch.For continuously reinforced concrete pavement, saw cut the exterior transversepatch limits to a depth of 1.75±0.25 inches. Do not allow the saw cutto penetrate the steel reinforcement. Saw cut longitudinal limits full depth.Break up the concrete with a chipping hammer down to the steel.If replacement steel will be welded, cut the existing reinforcing steel andleave 8 inches of steel exposed. If replacement steel will be tied, cut theexisting steel to leave the lap length plus 2 inches. Lap lengths are shownin Table 501-2.Table 501-2Reinforcing Steel SplicesBar SizeLength of OverlapinchesNo. 4 15No. 5 18No. 6 22333