Experiences with the Treatment of some Defects of a Concrete Pavement during Construction

The aim of this paper is to discuss some defects of the concrete pavement during the construction of the second northern expressway project in Taiwan. The possible reasons of and techniques for repairing these defects are studied in the paper. The defects discussed include the cracks in the lean concrete base or Portland cement surface layer, edge slump along the edge of the slab, texturing problems, construction joint case, and the joint spalling problem. These defects may affect the perforrTlariue uf the pdvernent structure after its opening to traffic.