COMPRESSIVE STRENGTH AND PERMEABILITY OF HIGH-PERFORMANCE CONCRETE UNDER CURING CONDITIONS SIMULATED MASSIVE CONCRETE STRUCTURES

摘要：

The compressive strength, chloride penetration resistance and microstructure of twohigh-performance concretes were examined under three curing conditions. Curing conditionsinclude standard curing (SC), matched curing (MC, which means sealed concrete specimenscuring at temperature controlled box) and matched curing of naked concrete (NMC)according to development law of temperature measured in mass concrete on site. Resultsindicate that concrete under MC and NMC show higher resistance to chloride penetration thanthe one under SC. Concrete under MC has a little bit lower chloride penetration than thoseunder NMC, but the compressive strength of specimens under NMC was higher than the oneunder MC at 56d. In addition, concrete under NMC and MC have higher early strength thanunder SC, especially at early age. However, the order of curing conditions affectingcompressive strength of concrete at 248 days is: SC>NMC>MC.

作者: Jianfu Lv Hui Guan Hengjing Ba Yingzi Yang

作者单位: School of Civil Engineering,Harbin Institute of Technology,China School of Civil Engineering,Harbin Institute of Technology,China;School of Material Science and Engi School of Material Science and Engineering,Harbin Institute of Technology,China

会议类型: 国际会议

会议名称: 1st International Conference on Microstructure Related Durability of Cementitious Composites(首届与水泥基复合材料耐久性相关的微观结构国际会议)

会议地点: 南京

会议语种:英文

页码: 795-803

在线出版日期: 2008-10-13（万方平台首次上网日期，不代表论文的发表时间）