Partial Depth Repair Concrete Pavement

5 694 920 type b repairs partial depth repairs type b repairs generally consist of partial depth milling or chipping to remove deteriorated or delaminated concrete and preparation and placement of the repair.

Partial depth repair concrete pavement.

5 694 921 partial depth procedures. The mechanical property of patch material was mainly considered when selection the patch material. However the stress state in the patch material or surrounding concrete varies depending on patch location and depth. 1report 1date 1 guide 1for 1partial depth 1repair 1of 1concrete 1pavements 1 april 12012 1 6.

Partial depth repair pdr is usually used to repair surface distresses of concrete pavement. Home department of defense unified facilities criteria ufc ufc 3 270 03 concrete crack and partial depth spall repair replaced by ufc 3 270 01 o m manual. Depending on the type of repair material used and the repair location a new joint sealant system may be placed as well. 1title 1and 1subtitle 1 5.

Type b 2d and b 2e repairs include removal to the bottom of the pavement if necessary. This is because the surface areas and depth of pdr are relatively small which makes the surface to volume ratio of the repair material applied higher than that of typical concrete pavement. If the depth of repair is over half the thickness of the existing pavement then full depth pavement repair should be used. Repair of this type restores ride ability deters further deterioration reduces foreign object damage potential and provides proper edges so that joints can be effectively resealed.

1 1 1 1 4. Class b partial depth pavement repair is similar to class a but it is used on projects that include resurfacing in excess of 3 in. 1performing 1organization 1report 1no. Guide for partial depth repair of concrete pavements i technical 1report 1documentation 1page 1.

613 1 3 class b partial depth pavement repairs description. In this article we study about need and in depth step wise procedure of partial depth repair of. Partial depth repair involves removing an area of deteriorated concrete that is limited to the top one third of the slab thickness and replacing it with appropriate repair materials. Materials and procedures for rapid repair of partial depth spalls in concrete pavements shrp h 349 strategic highway research program transportation research board washington dc.

This high surface to volume ratio makes the repair material subject to larger volume changes due to drying shrinkage if moisture is not retained by good. American association of state highway and transportation officals aashto.