摘要
为了探究迁移型阻锈剂在不同初始相对湿度混凝土中的迁移规律,设计初始相对湿度为0、30%、50%、65%和80%混凝土试块,分别在阻锈剂迁移7d、14d和28d后,利用纳氏试剂分光光度法测定不同深度混凝土中氨氮的含量。结果表明,迁移型阻锈剂在混凝土中的迁移速度随着初始相对湿度的增大而减小,并且迁移型阻锈剂28d的迁移深度在各个初始相对湿度下均能达到50mm。
In order to exptore the regularity of the migration corrosion inhibitor in different initial relative humidity in concrete, the initial relative humidity 0%, 30%, 50%, 65% and 80% concrete blocks have been prepared to carry out the Nessler＇s Reagent Spectrophotometry to determine the ammonia content of concrete in different depths when the migration time reached 7d, 14d and 28d respectively. The results showed that the migration velocities of migration inhibitor in concrete decreased with the increase of initial relative humidity, and all the migration depths of migration inhibitor can reach 50mm when the migration time reached 28d.
出处
《混凝土与水泥制品》
2017年第8期12-14,19,共4页
China Concrete and Cement Products
基金
国家自然科学基金(51508291
51608286)
山东省自然科学基金(ZR2016EEP01)
关键词
迁移型阻锈剂
初始相对湿度
迁移性能
Migrating corrosion inhibitor
Initial relative humidity
Migration behavior
