湖南大学学报（自然科学版）2013，Vol.40Issue(1)：9-14,6.
防火涂料对高强混凝土高温后氯离子渗透性影响
Influence of Fire Insulation on the Chloride Ion Permeability of High Strength Concrete after High Temperature
摘要
Abstract
Five groups of high strength concrete (HSC) specimens with a 28-day cubic compressive strength of 82. 6 MPa and with fire insulation were tested, and the influence of the thickness of fire insulation on the chloride ion permeability of HSC after high temperature was discussed. Test results have shown that, in the case that the fire insulation thickness is 30 mm, the chloride ion permeability of HSC after high temperature is almost the same as that at room temperature; in the case that the fire insulation thickness is 20～25 mm, the chloride ion permeability of HSC after high temperature is still lower than that of C50 concrete at room temperature; and in the case that the fire insulation thickness is 15 mm, the chloride ion permeability of HSC after high temperature is relatively large. It can be concluded that fire insulation with a thickness of 20 mm is effective both for the inhibition of explosive spalling of HSC at ele-vated temperature and for the reduction of the chloride ion permeability of HSC after high temperature.关键词
高强混凝土/高温后/氯离子渗透性/改善措施Key words
high strength concrete/ after high temperature/ chloride ion permeability/ corrective measures分类
建筑与水利引用本文复制引用
吴波,周鹏,吴耀鹏..防火涂料对高强混凝土高温后氯离子渗透性影响[J].湖南大学学报（自然科学版）,2013,40(1):9-14,6.基金项目
国家杰出青年科学基金资助项目(51025829) （51025829）
国家重点基础研究发展计划(973计划)资助项目(2011CB013800) （973计划）
国家科技支撑计划子课题(2011BAJ09B03-04) （2011BAJ09B03-04）
亚热带建筑科学国家重点实验室基金资助项目(2011ZB07) （2011ZB07）
中央高校基本科研业务费资助项目(2012ZP0011) （2012ZP0011）
陕西省百人计划资助项目(陕办发[2009]12号) （陕办发[2009]12号）
