Roller Compacted Concrete Dams—An Overviewby John Lowe, III,
Abstract: The development of roller compacted concrete for gravity dams is traced from forerunners, through its use at the Shihmen and Tarbela Dam Projects to Willow Creek Dam and the Japanese Roller Compacted Dams. The use of the abbreviation 'rollcrete' is proposed for roller compacted concrete following the soils engineers' approach, 'RCC' for that following the concrete engineers' approach and 'RCD' for that following the Japanese approach. The design of roller compacted concrete dams is discussed considering stability against overturning, stability against sliding, and thermal cracking. Recommendations are made that roller compacted concrete dams be provided with an upstream impervious membrane of reinforced concrete having water-stopped contraction joints, and with a curtain of drain holes at about the upstream quarter point.
Subject Headings: Concrete dams | Roller-compacted concrete | Compaction (material) | Gravity dams | Rivers and streams | Reinforced concrete | Compacted soils | Membranes
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