Compaction Parameters of Roller Compacted Concreteby Howard Withrow, BOMAG (USA), Springfield, OH, USA,
Abstract: Density in roller compacted concrete is usually achieved through vibratory compaction. Factors of major influence in attaining densification of a structure with a vibrating roller are static axle loading and amplitude of the vibrating mass of the roller. Effect of vibrating mass (upsprung weight), roller dimensions, frequency, and rolling speed must also be considered as factors in achieving compaction. Material characteristics that influence compaction are grain size and distribution, moisture content, and lift thickness. These characteristics can usually be controlled within a specified range with the result that a rolling pattern can be established to yield a satisfactory end product either in the construction of roller compacted concrete dam or pavement structures.
Subject Headings: Roller-compacted concrete | Compaction (material) | Vibration | Concrete dams | Concrete pavements | Density (material) | Load factors | Infrastructure construction
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