A Novel Approach to Determine the Elastic Properties of the Interphase between the Aggregate and the Cement Paste

Abstract:

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Concrete is a three-phase material consisting of cement paste matrix, discrete inclusions of sand (aggregate), and an interfacial transition zone (ITZ) between the matrix and the inclusions. In order to calculate the elastic properties of the ITZ of cement mortar, We model the material as a composite formed by a matrix with embedded spherical particles; each surrounded by a concentric spherical shell. With help of the generalized self-consistent method (GSCM), equations of bulk modulus and shear modulus of ITZ are deduced, and Elastic properties of ITZ are computed by using experimentally known elastic properties of the composite. It is found that the shear modulus of ITZ is about 50% of that of the cement paste matrix.

Info:

Periodical:

Key Engineering Materials (Volumes 462-463)

Edited by:

Ahmad Kamal Ariffin, Shahrum Abdullah, Aidy Ali, Andanastuti Muchtar, Mariyam Jameelah Ghazali and Zainuddin Sajuri

Pages:

680-685

DOI:

10.4028/www.scientific.net/KEM.462-463.680

Citation:

H. C. Qu and P. Zhang, "A Novel Approach to Determine the Elastic Properties of the Interphase between the Aggregate and the Cement Paste", Key Engineering Materials, Vols. 462-463, pp. 680-685, 2011

Online since:

January 2011

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Price:

$35.00

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