摘要
对不同温度损伤后的混凝土试件进行再养护,通过毛细吸收试验,测定不同温度损伤、不同冷却方式混凝土试件再养护后的毛细吸水量、毛细吸水系数以及氯离子含量随深度变化曲线。试验结果表明,高温损伤后的混凝土试件抗渗透性劣化速率呈突变式增加,经再养护后,试件的抗水分侵入性能及抗氯离子侵入性能有较为明显的提高。
The paper, study on the injury re-curing concrete specimens after dif- ferent temperatures by capillary absorption test. measured the concrete specimens re- capillary water absorption, capillary water absorption coefficient, and the chloride ion content with depth curve under different temperatures damage, different cooling after curing environment. Experimental results show that the high temperature damage con- crete that after penetration resistance of concrete specimens＇ abrupt degradation rate was increased by re-curing;the specimens＇ moisture resistant properties and resistance to chloride corrosion intrusion have a more significant performance improvement.
出处
《工程建设》
2014年第3期7-10,20,共5页
Engineering Construction
基金
973项目(2009CB623203)
青岛市基础研究-联合基金计划项目(13-1-4-115-jch)
关键词
再养护
高温损伤
渗透性
耐久性
re-curing
high-temperature damage
permeability
durability
