Investigation on the interior relative humidity of concrete at early age

Title: Investigation on the interior relative humidity of concrete at early age
Author(s): J. Zhang, D. Hou
Paper category : conference
Book title: International Conference on Microstructure Related Durability of Cementitious Composites
Editor(s): W. Sun, K. van Breugel, C. Miao, G. Ye and H. Chen
Print-ISBN: 978-2-35158-065-3
e-ISBN: 978-2-35158-084-4
Publisher: RILEM Publications
Publication year: 2008
Pages: 849 - 858
Total Pages: 10
Nb references: 10
Language: English

Abstract: In the present paper, the development of internal relative humidity of concrete slab at early 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 with concrete age. The general law of the development of relative humidity inside of concrete can be described by a vapor saturated stage with 100% relative humidity (stage I) followed by a stage that the relative humidity gradually reduced (stage II). The length of stage I and the magnitude of relative humidity in stage II are greatly influenced by the strength of concrete and the location in concrete. A humidity gradient along the thickness of concrete specimen is existed at early age.

Online publication: 2009-06-09
Publication type : full_text
Public price (Euros): 0.00