Performance of Soil-Cement Dam Facings - 20-Year Report

摘要

The soil-cement slope protection on three Bureau of Reclamation embankment dams has been damaged enough to require repair. They were the first three Bureau embankments to use soil-cement in place of riprap, and have been in service 18 to 20 years. The soil-cement facings on later Bureau dams are still in excellent condition. The lack of bond between the soil-cement lifts, in combination with severe weather and wave action, appear to be the main factors contributing to the damage. Laboratory tests and field test sections indicate that cement applied between the soil-cement lifts may be a practical solution to prevent damage to the facing when severe weather and wave conditions exist.