COLOR CONCRETE COMPOSITION

摘要

PURPOSE: A color concrete composition is provided to apply vivid color to concrete and secure the early strength of the concrete by adequately including type III cement, anhydrous gypsum, calcium nitrate, and pigments. CONSTITUTION: A color concrete composition includes a binder and pigments. The binder includes 400-470 kg/m^3 of type III cement, 5-15 kg/m^3 of anhydrous gypsum, and 5-15 kg/m^3 of calcium nitrate. The ratio of water to cement(W/C) is 30-40 parts by weight. A fine aggregate rate(S/a) is 40-50 parts by weight. 0.1-1.5 part by weight of a high performance water reducing gent is included based on the binder. The amount of the fine aggregate(S) is between 700 and 900kg/m^3. The amount of coarse aggregate is between 800 and 1000kg/m^3.