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Title: Vibratory compaction of bituminous concrete pavements
Authors: United States. Air Force.
Burns, Cecil D.
Keywords: Bituminous concretes
Rubberized tar
Flexible pavements
Vibratory compaction
Vibratory compacting
Hot mix
Vibratory compactors
Issue Date: Jun-1976
Publisher: Soils and Pavements Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Description: Miscellaneous Paper
Abstract: This study was conducted to evaluate the effectiveness of vibratory rollers in the compaction of hot-mix asphaltic concrete and rubberized-tar concrete to satisfy the needs of the Air Force. The study consisted of overlaying an existing heavy gear load test section at the U.S. Army Engineer Waterways Experiment Station, which consisted of rigid and flexible pavements, with asphaltic concrete and rubberized-tar concrete pavements. The overlay pavements were compacted with two selected vibratory rollers, a Buffalo-Bomag BW210-A and a Dynapac CC-50A. A conventional steel-wheeled static roller and a pneumatic-tired static roller were also used for comparison. Variables included in the study were roller weight, frequency and amplitude of vibration, number of roller passes, type of roller (vibratory or static), type of foundation, and type and thickness of overlay pavements. The significant findings from this study are that (A.) vibratory rollers of the type used are satisfactory for the compaction of high-quality bituminous concrete pavements, and (B.) if properly used, they can provide densities meeting the requirements of the Air Force and the Corps of Engineers.
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