摘要
通过实验室干湿加速试验,用超声波法、回弹法、超声-回弹综合法对受硝酸盐腐蚀的聚丙烯砂浆进行强度检测并研究其作用基理。硝酸盐腐蚀对聚丙烯砂浆表面有一定影响,同时使试块整体强度下降。结果表明,腐蚀后的抗压强度与回弹值、超声波波速有较好的拟合关系。
Through the test of laboratory dry-wet accelerated,the strength tests of the polypropylene mortar of the nitrat corrosion are carried out by using the ultrasonic velocity,rebound value and ultrasonic-rebound combined method,and the mechanism is analyzed.Nitrates have effects on corrosion of polypropylene mortar,and the briquette strength is decreasing.The results show that compressive strength of polypropylene mortar corrosion by nitrate has a certain regression relationship with rebound value,ultrasonic wave velocity.
出处
《工程抗震与加固改造》
北大核心
2014年第2期124-127,123,共5页
Earthquake Resistant Engineering and Retrofitting
基金
“十二五”国家科技支撑计划课题(2011BAJ10B04)
关键词
无损检测
硝酸盐
回归
腐蚀
nondestructive testing
nitrate
regression
corrosion
