Asphalt Plug Joint: An Experimental Evaluation

摘要

A pilot study was conducted at the University of Wyoming on plasticized asphaltplug joints. Currently, no standard testing procedures exist for evaluation and fatigue testing of an asphalt plug joint. The pilot program was designed to identify cyclic loading response and evaluate possible testing procedures for this class of joint. There were four main objectives in this testing: (1) model the cyclic mechanical behavior, (2) determine the temperature effects during cyclic loading, (3) pull the joint in tension until failure, repair and cycle again, (4) develop recommendations for further testing. The asphalt plug joint used in this experiment was supplied and installed by Koch Materials Company and Best-Way Paving. The joint test was designed to simulate ten years of mechanical movement and the corresponding temperature changes the joint would experience. Testing simulated daily movement and seasonal movement.