Investigating the Effect of Gradation, Temperature and Loading Duration on the Resilient Modulus of Asphalt Concrete

This research was carried out to assess the effect of aggregate skeleton, temperature variation, and loading duration on resilient modulus asphalt concrete mixtures. Two different gradation methods, i.e., conventional method Bailey gradation, were adopted design skeleton. The these with duration, has not been previously investigated. Modified Marshall Test used determine optimum binder content against 4% air voids, then volumetric strength parameters calculated content. For performance tests, specimens prepared at using a Superpave gyratory compactor. An indirect tensile test both types mixtures conducted, 20% value kept for peak load, whereas 10% seating load conducting tests. tests conducted 100 300 ms loads under two temperatures, 25 oC 40 oC. results declared that temperature, have prominent disclosed higher values than Higher observed low temperatures small high large loads. two-way factorial also confirmed above findings. Doi: 10.28991/CEJ-2022-08-02-07 Full Text: PDF