Effect of Test Condition Parameters on
Publication: Journal of Transportation Engineering
Volume 114, Issue 2
Abstract
The index of retained resilient modulus () is used to assess moisture‐induced distress in asphalt concrete mixtures. The represents the ratio of two moduli and is sensitive to slight deviations in each measured value of modulus. A laboratory and analytical research program was conducted to examine the effect of variations in test condition parameters on the resilient modulus, and the In the laboratory test program, the strain and temperature dependencies of the were determined for a dense‐graded asphalt concrete mixture. The results indicate that constant stress testing may result in a misinterpretation of the and, further, tests conducted within the currently accepted temperature range may result in a deviation in the In the analytical program, the effect of diametral test boundary conditions on the measured value of was evaluated using two‐ and three‐dimensional finite element models. The results indicate that the resilient‐modulus diametral test is adequately represented by elastic theory based on an assumed plane stress condition.
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Copyright © 1988 ASCE.
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Published online: Mar 1, 1988
Published in print: Mar 1988
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