【摘要】 通过合理的配合比设计,在普通强度的混凝土中掺入高效减水剂、优质引气剂等外加剂及优质矿物细掺料,可显著改善混凝土的孔结构,在保持混凝土强度基本不变的前提下显著提高混凝土的耐久性,证明普通强度的混凝土完全可以实现高耐久性。普通强度;混凝土;高耐久性;孔结构更多还原

【Abstract】 Through the reasonable design of mix proportions, the admixture such as the high efficient water reducer, excellent gas-forming agent, etc. and the excellent mineral fine admixtures are mixed in the ordinary strength concrete. It is found that the pore structure can be improved obviously. Under the condition of keeping the concrete strength basically constant, the concrete durability can be improved obviously as well. It is proved that the high durability can certainly be realized for the ordinary strength concrete.更多还原