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Abstract:This report is concerned with the flexural fatigue strength of asphaltic concrete surfacing mixtures as measured by a repetitive deflection test on disc-shaped specimens, and the static bending or tensile strength as determined from a modified cohesiometer test. Results were obtained for laboratory-prepared specimens with varying asphalt content, asphalt grade and asphalt source. Correlations between the two test methods are presented. Trends are not considered to be well-defined, although it appears that bending strength increases with asphalt viscosity.
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