FIBER REINFORCED CONCRETE DAM

摘要

The present invention relates to a concrete dam and, more particularly, to the concrete dam wherein locally generated aggregates such as a river bed sand and gravel, and rock are classified at a minimum, mixed with cement, water and copper smelting slag, then, uses the mixed material so as to form a shielding membrane concrete and a protective concrete and then to form a concrete dam body reinforced with a synthetic fiber, thereby, it is possible to reduce a cross-section of the dam body in size and possible to suppress a surface crack. The concrete dam according to a desirable embodiment of the present invention has the shielding membrane concrete on an upstream surface of the dam body, arranges the protective concrete on a crown and a downstream surface of the dam body, and thereby, has a trapezoidal cross-section forming a rich mix concrete at a joining portion between the dam body and a foundation ground wherein each of the shielding membrane concrete and the protective concrete comprises, based on 100 parts by weight of cement, 230 to 270 parts by weight of mixed water and 4200 to 4800 parts by weight of aggregate, the maximum size of the aggregate is 150 mm or less, the copper smelting slag is prepared by replacing 30 to 40 wt% of cement, and wherein the dam body comprises, based on 100 parts by weight of cement, 230 to 270 parts by weight of mixed water, 4200 to 4800 parts by weight of aggregate and 1 to 10 parts by weight of polyvinyl alcohol (PVA) fiber, the maximum size of the aggregate is 150 mm or less, and the copper smelting slag is prepared by replacing 30 to 40 wt% of cement.