1Xi’an University of Technology, Xi’an, China
Online published on 16 July, 2022.
Concrete dams have a long history to be widely constructed as this type of dams possess adequate safety in good geological foundation conditions. However, aging of concrete dams with time has become one of serious engineering problems due to weathering, lowering and raising of the reservoir level, and freezingthawing of cycles. The stability of concrete dams generally maintains, however, the imperviousness of the upstream faces of concrete dams are gradually deteriorated with time and some leakages occur. The rehabilitation of the upstream faces is usually to use spray coating materials and the coating is easily to be peeled off when the faces have become porous due to aging. The paper presents the advantages of asphalt membranes with prefabricated concrete slabs anchored on the concrete faces of concrete dams. The detailed design and a case study are also presented.
