FUNDAMENTAL STUDY ON ANTI-WASHOUT UNDERWATER CONCRETE USING COPPER SLAG AND ELECTRIC FURNACE OXDATION SLAG

In this study, mix proportion, quality and construction performance of anti-washout underwater concrete using copper slag and electric furnace oxidation slag were examined. As a result, flowability and pumpability of concrete had good performance, but suspended solid content in water was increased. In the strength design must be considered the variation of compressive strength due to slag. However compressive strength can be estimated by using cylinder concrete specimens that was casted in water. Unit mass design can be estimated by mix proportion design. In this study, maximum unit mass was 3.0 t/m3. When flow distance in the water was 5m, quality of concrete had been keeping.