基于硫酸盐腐蚀的混凝土劣化性能研究

Study on Performance Deterioration of Concrete Based on Sulfate Corrosion

针对当前混凝土腐蚀给道路工程带来的危害问题,结合相关的腐蚀理论,对水泥混凝土的腐蚀劣化问题进行研究。对此,首先针对当前研究中通常只考虑单一的影响因素,提出在交变荷载和硫酸盐综合作用下进行研究;然后以腐蚀混凝土劣化试验和相关的指标,对制备的混凝土试件进行测试,最终认为在交变荷载—硫酸盐共同腐蚀下,比单一的硫酸盐腐蚀对水泥混凝土的破坏更大,并与硫酸盐的浓度有很大的关系。

In view of the hazards of concrete corrosion to road engineering, combined with the relevant corrosion theory, the corrosion deterioration of cement concrete was studied. In this regard, comprehensive effect of alternating loading and sulfate was investigated; then based on the corrosion deterioration test of concrete and related indexes, prepared concrete specimens were tested. The results showed that the performance deterioration of cement concrete under comprehensive effect of alternating load and sulfate corrosion was more serious than that under the single effect of sulfate corrosion, and had a great relationship with the concentration of sulfate.