INVESTIGATION ON THE INTERIOR RELATIVE HUMIDITY OF CONCRETE AT EARLY AGE

摘要：

In the present paper, the development of internal relative humidity of concrete slab atearly age was investigated by applying the temperature and humidity combined digital sensor.The experimental results show that the internal relative humidity of concrete is reduced withconcrete age. The general law of the development of relative humidity inside of concrete canbe described by a vapor saturated stage with 100％ relative humidity (stage I) followed by astage that the relative humidity gradually reduced (stage If). The length of stage I and themagnitude of relative humidity in stage II are greatly influenced by the strength of concreteand the location in concrete. A humidity gradient along the thickness of concrete specimen isexisted at early age.

作者: Jun Zhang Dongwei Hou

作者单位: Department of Civil Engineering,Key Laboratory of Structural Engineering and Vibration of China Education Ministry,Tsinghua University,Beijing,100084,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: 849-858

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）