An Analytical Solution for the Elastic Moduli of Concrete with Interfacial Cracks

Xin Zhu Zhou; Jian Jiang Ding; Jian Jun Zheng

doi:10.4028/www.scientific.net/AMR.163-167.1247

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 163-167An Analytical Solution for the Elastic Moduli of...

An Analytical Solution for the Elastic Moduli of Concrete with Interfacial Cracks

Abstract:

Owing to their importance to the assessment of reinforced concrete structures, it is of great practical significance to predict the elastic moduli of concrete with interfacial cracks. The intention of this paper is to present an analytical solution for the elastic moduli of cracked concrete. According to the theory of stereology, the 2D scalar crack density is expressed as an explicit function of the aggregate area fraction and the central angle of interfacial cracks. For uniformly oriented and mutually interacted interfacial cracks, the effective medium method is used to derive the relative elastic moduli of cracked concrete. Based on the numerical results, it is found that the relative elastic moduli decrease with the increase of the aggregate area fraction and/or the central angle of interfacial cracks. It is also found that the relative elastic moduli are independent of the minimum aggregate diameter, the maximum aggregate diameter, and the aggregate gradation.

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Periodical:

Advanced Materials Research (Volumes 163-167)

Pages:

1247-1250

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.163-167.1247

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Online since:

December 2010

Authors:

Xin Zhu Zhou, Jian Jiang Ding, Jian Jun Zheng

Keywords:

2D Scale Crack Density, Concrete, Elastic Modulus, Interfacial Crack

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