Efficient Construction
Roller Compacted Concrete Dams (RCC) Using Roller Compacted Concrete for Dams
Benefits of Using Roller Compacted Concrete for Dams
Saves time and money by providing much longer design life with reduced maintenance.
Allows for fast and economical construction of new dams and the raising of existing concrete dams by utilizing site aggregates and high production rates. RCC is also beneficial in the seismic improvement of existing dams.
Documents and Resources
ABOVE – The San Vicente Dam in San
Diego County was raised in height by 117 feet using Roller Compacted Concrete. As a result, the dam can now store an additional 152,000 acre-feet of water, more than doubling the original capacity of the reservoir.
Roller Compacted Concrete (RCC) is produced by mixing the same ingredients used to make conventional concrete including; Portland Cement, fly ash, sand, aggregate, and water. However, the amount of water is significantly reduced resulting in a very stiff, “no-slump” concrete that is placed and compacted unlike traditional concrete. For dam construction, the RCC is transported by conveyors or in dump trucks and installed lift by lift in horizontal layers.
Please do not hesitate to contact our experienced geotechnical engineers and review our extensive resource library for the relevant documents listed below.
Roller-Compacted Concrete Density: Principles and Practices – PCA
CNCA Geotechnical Professionals Tyler Bodnar, P.E. Director of Geotechnical Markets Tyler.bodnar@cncement.org Telephone: 530.521.0378
The versatility of RCC allows for unreinforced gravity dams and durable pavements composed of RCC to be placed faster and more economically than conventional concrete. RCC can support loads of rollers and other construction equipment immediately after placement. The compaction adds strength and durability. RCC dams are popular in California and Nevada.
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