This procedure is applicable to the maintenance and repair of hydraulic concrete structures of first-, second-, third- and fourth-level concrete dams and earth-rock dams of the same level. Other hydraulic concrete buildings can refer to this implementation.
SL 230-1998 history
2015SL 230-2015 Code of maintenance and repair for concrete dam
1999SL 230-1998 Specifications for maintenance and repair of concrete dam