Reuse of Waste Foundry Sand Used in High Strength Concrete
In order to study on the influence of foundry waste sand to concrete instead of some fine aggregate to concrete mechanical properties,the paper conducts mechanical properties test of the substitution ratios of foundry waste sand to fine aggregate that are respectively 0%,5%,10%and 15%.The results show that the mechanical properties are relation to the percent of foundry waste sand.The concrete with 10%waste foundry sand exhib-its almost the same results with control one,the other concrete shows lower results in compressive and tensile strength.The slump of fresh concrete is decrease with the waste foundry sand ratio.The water absorption ratios of the specimens supplied with waste foundry sand over 10%were lower than the control ones.Waste foundry sand can be used in high strength concrete.
high strength concretefine aggregatewaste foundry sand
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