ABSTRACT
Since the development and rapid increase in the application of asphaltic concrete facings for embankment dams in the fifties of the last century, consideration has been given to the application of asphaltic concrete core inside dam’s body. The idea has been to retain the basic positive features offered by asphalt concrete as a very suitable material for construction of the watertight element in embankment dams, while at the same time also avoiding the deficiencies caused by the exposed position of the facing at the upstream slope of the dam. The main advantages, which are obtained with the dislocation of the waterproof element from the upstream slope towards the interior of the dam body, are as follows:
1. Waterproof element in dam’s body is not exposed to external influences, especially to significant temperature variations, to which asphalt is rather sensitive;
2. Asphaltic concrete core is jointed with the foundation in a simpler manner, the joint is less exposed to danger of damage due to differential settlement, while the foundation is of smaller length; if there is need of a grout curtain, the smaller foundation length is especially handy.
