International Journal of Concrete Structures and Materials

Korea Concrete Institute (한국콘크리트학회)
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Predicting Model for Pore Structure of Concrete Including Interface Transition Zone between Aggregate and Cement Paste

  • Pang, Gi-Sung (Electric & Nuclear Power Division, Korea Institute of Energy Technology Evaluation and Planning) ;
  • Chae, Sung-Tae (Korea Institute of Construction Materials) ;
  • Chang, Sung-Pil (Dept. of Civil and Environmental System Engineering, University of Incheon)
  • Published : 2009.12.30
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Abstract

This paper proposes a semi analytical model to describe the pore structure of concrete by a set of simple equations. The relationship between the porosity and the microstructure of concrete has been considered when constructing the analytical model. The microstructure includes the interface transition zone (ITZ) between aggregates and cement paste. The predicting model of porosity was developed with considering the ITZ for various mixing of mortar and concrete. The proposed model is validated by the rapid experimental programs. Although the proposed model is semi-analytical and relatively simple, this model could be reasonably utilized for the durability design and adapted for predicting the service life of concrete structures.

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References

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