Evaluation of Materials for Asphalt Mixture Performance, Semi-Circular Bend Laboratory Tests
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A study was conducted to evaluate the repeatability of the Flexibility Index of asphalt mixtures obtained according to AASHTO TP-124-16. Three asphalt concrete samples were mixed and compacted using the Superpave Gyratory Compactor in one laboratory. The samples were then cut to specific dimensions for semi-circular bend testing based on the AASHTO Specifications at a single laboratory using a dedicated cutting equipment. The samples were randomized and distributed equally among three different testing labs. The process was repeated three times and in some instances the rate of loading was varied. This experiment allowed to study the repeatability of the the Flexibility Index
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2019-02-15
