Paper Title:
Desorption Experimental Analysis and Modeling of Drying Shrinkage and Relative Humidity in Non-Saturated Concrete
  Abstract

Abstract. The paper investigates the gradient of relative humidity over time at different depth from dried surface and the relationship between relative humidity and concrete shrinkage. It shows that a drop in relative humidity over time is remarkable, and that drying shrinkage is linearly related to humidity. By measuring the weight of the sample and calculation of the capillary pressure, the relationship between the saturation and the capillary pressure is presented. Based on the experiment and Kelvin’s law, a model of shrinkage for non-saturated concrete taking the surface energy into account is presented. A comparison of computed and observed drying shrinkage is made, finding that the two values are in agreement very well.

  Info
Periodical
Advanced Materials Research (Volumes 368-373)
Chapter
Chapter 2: Disaster Prevention and Reduction of Civil Engineering
Edited by
Qing Yang, Li Hua Zhu, Jing Jing He, Zeng Feng Yan and Rui Ren
Pages
725-731
DOI
10.4028/www.scientific.net/AMR.368-373.725
Citation
L. Y. Meng, "Desorption Experimental Analysis and Modeling of Drying Shrinkage and Relative Humidity in Non-Saturated Concrete", Advanced Materials Research, Vols. 368-373, pp. 725-731, 2012
Online since
October 2011
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Price
$32.00
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