大气条件下混凝土中钢筋锈蚀程度发展对保护层开裂和钢筋力学性能影响的试验研究

Test and research of influences of reinforcing bar rust on the cracking of concrete protection layer and mechanics performances of reinforcing bar in concrete under the condition of atmosphere

本文刊出试验周期约 10年的混凝土中钢筋锈蚀长期试验结果 ,分析大气条件下混凝土中钢筋锈蚀对保护层开裂和力学性能的影响 ,涉及混凝土保护层中性化后开裂的时间 ,引起保护层开裂的钢锈失重率和外界因素 ,以及钢筋力学性能的变化。

? The article publishes the results of long term rust test of reinforcing bar in concret with test period for about ten years,analyzes the influences of reinforcing bar rust on the cracking of concrete protection layer and mechanics performances of reinforcing bar,involving cracking time of concrete protection layer after neutralization,weight lose ratio of reinforcing bar rust and external factors causing the cracking of concrete protection layer,and the changes of mechanics performances of reinforcin bar. 〔