海洋大气环境下橡胶粉水泥混凝土性能试验

研究了不同掺量的橡胶粉水泥混凝土的物理力学性能，通过模拟海洋大气对混凝土的侵蚀作用，采取化学滴定的方法，测定了不同掺量的橡胶粉水泥混凝土的碳化深度和氯离子渗透深度。结果表明，随着橡胶粉掺量的逐渐增加，混凝土试件的工作性、抗压强度及抗折强度逐渐降低，且当掺量小于2%时，降低幅度较小，当掺量大于2%时，降低幅度增大；掺入一定量的橡胶粉对混凝土的抗碳化和抗氯离子侵蚀性能具有明显的改善作用。其中，改善抗碳化能力橡胶粉的掺量约为3.5%，改善抗氯离子侵蚀能力的掺量约为5%，且当掺量为2%时，改善效果最佳。

Tests for rubber powder concrete performance in maritime climate environment

The physical and mechanical features of rubber concrete with different mixing ratio are studied. Through simulation of concrete erosion by maritime climate,the carbonization depth and chloride ion infiltration depth of rubber concrete at different ratio by chemical titration. The results show that with increment of mixed rubber powder,the workablity,compressive strength,bending resistance decrease gradually,if the mixed ratio is less than 2% ,the decrease amplitude is small; while the mixed ratio is larger ...