引气剂对大孔混凝土力学性能及耐久性的影响

摘要

The addition of air entraining admixture could improve durability of ordinary concrete effectively, while the effect on coarse porous concrete is not obvious. The article describe the reseach on the effect of air entraining admixture on mechanical properties and durability of coarse porous con- crete. The result shows that the compressive strength and resistance properties to freeze--thaw could be improved with the appropriate amount of air entraining admixture by testing.%引气剂能有效改善普通混凝土的耐久性．但对大孔混凝土性能的影响不明确。本文通过试验，研究不同掺量引气剂对大孔混凝土力学性能及耐久性能的影响。结果表明，适量的引气剂能够增强大孔混凝土的抗压强度和改善抗冻性能。