ABSTRACT
Japan is the country where the world’s first roller-compacted concrete dam was constructed in 1980. Since then, about 40 roller-compacted concrete dams have been constructed in Japan. Japanese roller-compacted concrete dams are called RCD dams and are distinguished from the other roller compacted concrete dams because there are some differences in their design and construction philosophies. This paper describes the history of RCD dam construction in Japan. The paper also describes a new type of dams called the trapezoidal CSG dams that are being comprehensively studied and field-tested in Japan.
