Partial Depth Repair Concrete Pavement

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Partial depth repair concrete pavement. 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. American association of state highway and transportation officals aashto. 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.

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. Asphalt and concrete pavement maintenance and repair. Type b 2d and b 2e repairs include removal to the bottom of the pavement if necessary. 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.

5 694 921 partial depth procedures. 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. Guide for partial depth repair of concrete pavements i technical 1report 1documentation 1page 1. 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.

In this article we study about need and in depth step wise procedure of partial depth repair of. The purpose of partial depth repairs is to correct localised areas of concrete pavement distress. Depending on the type of repair material used and the repair location a new joint sealant system may be placed as well. 613 1 3 class b partial depth pavement repairs description.

The mechanical property of patch material was mainly considered when selection the patch material. Partial depth repair pdr is usually used to repair surface distresses of concrete pavement. However the stress state in the patch material or surrounding concrete varies depending on patch location and depth. 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.

1performing 1organization 1report 1no. 1report 1date 1 guide 1for 1partial depth 1repair 1of 1concrete 1pavements 1 april 12012 1 6.