摘要
研究了水灰比、粉煤灰含量对混凝土的气体渗透性和碳化深度的影响,同时对碳化性能和气体渗透性的相互关系进行了深入研究。试验结果表明混凝土气体渗透性和碳化深度均随着水灰比的增大而增加,但是随着粉煤灰含量的提高,气体渗透性逐渐降低,但是碳化深度却逐渐提高。同时,研究还表明混凝土碳化性能与混凝土水泥含量关系密切,与混凝土气体渗透性相关性不大。
Effects of water-cement ratio and fly ash content on gas permeability and carbonization depth of concrete were investigated.And the relationship between carbonization resistance and gas permeability of concrete was also discussed.Results showed that the gaspermeability and the carbonization depth both increased with the increasing of water-cement ratio.Adding fly ash content decreased the gaspermeability, but increased the carbonization depth.In addition, results also showed that the carbonation resistance of concrete was closelyrelated to the cement content and was irrelevant to the gas permeability.
作者
宋杨
金文娟
SONG Yang;JIN Wenjuan(Changzhou Institute of Technology,Changzhou 213032,China;Intelligent Inspection and Monitoring Engineering Technology Research Center of Jiangsu Province,Changzhou 213032,China;Jilin University,Changchun 130026,China)
出处
《混凝土》
CAS
北大核心
2018年第6期13-17,共5页
Concrete
基金
国家自然科学基金项目(51708049)
江苏省自然科学基金(BK20170293)
住房和城乡建设部项目(2014-K2-014)
常州市应用基础研究计划(CJ20179043)
江苏省建设系统科技计划项目(2017ZD257)
常州工学院校级重点课题(YN1613)
关键词
碳化性能
气体渗透性
粉煤灰
水灰比
carbonation resistance
gas permeability
fly ash
water-cement ratio
