Title: AN INVESTIGATION OF FLEXURAL CRACKING ON A MAJOR HIGHWAY
Abstract: The paper describes investigations of extensive chicken net cracking of the surfacing of a major road in South Africa. Benkelman Beam tests, in which both curvature and deflection were measured, indicated that the cracking was due to excessive flexing of the surfacing under traffic. A contributory cause was probably the relatively low flexibility of the surfacings. A number of possible remedial treatments were studied in full scale trials on the road. The resurfacings studied to date have not been satisfactory, cracks reappearing soon after laying. Some types of 4 inch overlay have brought about a considerable reduction in flexure, and would probably prove satisfactory solutions in practice.
Publication Year: 1962
Publication Date: 1962-01-01
Language: en
Type: article
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