Analysis of Concrete Early-Age Shrinkage Based on the Theory of Humidity Diffusion

Yun Feng Li; Rong Qiang Du; Fan Ying Kong

doi:10.4028/www.scientific.net/KEM.462-463.183

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 462-463Analysis of Concrete Early-Age Shrinkage Based on...

Analysis of Concrete Early-Age Shrinkage Based on the Theory of Humidity Diffusion

Abstract:

The early-age shrinkage cracking of concrete plays an important role to the accelerated deterioration and shortening the service life of concrete structures. Modern concretes are more sensitive to cracking immediately after setting, which is due to material characteristics (lower water/binder ratio and higher cement content) and external environmental fluctuations (humidity and temperature change). Determination of concrete free shrinkage is the basis of shrinkage cracking research. Analytical models of the autogenous shrinkage and drying shrinkage are established in this paper. The calculated results agree well with the experimental results.

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Periodical:

Key Engineering Materials (Volumes 462-463)

Pages:

183-187

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.462-463.183

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Online since:

January 2011

Authors:

Yun Feng Li, Rong Qiang Du, Fan Ying Kong

Keywords:

Concrete, Crack, Humidity Diffusion, Shrinkage

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References

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