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Evaluating The Polishing Of Skid Aggregates In Asphalt Using The British Pendulum Tester, Allison Nicole Givens
Evaluating The Polishing Of Skid Aggregates In Asphalt Using The British Pendulum Tester, Allison Nicole Givens
Graduate Theses, Dissertations, and Problem Reports
To ensure the pavements in West Virginia have adequate skid resistance the Division of Highways evaluates and approves skid resistant aggregate sources for all wearing courses on roads with an ADT of 3,000 or greater. Unfortunately, the supply of skid aggregates in West Virginia is depleting quickly. To find a potential alternative to using skid resistant aggregates, laboratory polishing of asphalt samples was performed using a Circular Track Polishing Machine, and friction was tested using a British Pendulum Tester. The experiment was designed to investigate how a specific aggregate type provides skid resistance to a hot asphalt mixture.
The objective …
Procedure For Asphalt Mixture Friction Evaluation For Wvdoh, Danielle Marie Hoyer
Procedure For Asphalt Mixture Friction Evaluation For Wvdoh, Danielle Marie Hoyer
Graduate Theses, Dissertations, and Problem Reports
Monitoring asphalt skid resistance in the laboratory could aid in improved friction prediction capabilities and provide insight for developing alternative asphalt mixture designs in the future. The West Virginia Department of Highways (WVDOH) sought the design of a laboratory accelerated asphalt polishing machine to further expand on current skid resistance measurement practices. The design is modeled after the North Carolina State University (NCSU) polishing machine detailed in ASTM E660. The purpose of this research was to develop a testing procedure for the polishing equipment. Friction was monitored with the British Pendulum Tester (BPT) according to ASTM E303.
Specimens were prepared …