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Effects of loading rate on the fracture of cementitious materials

Tandon, S. and Faber, K. T. (1999) Effects of loading rate on the fracture of cementitious materials. Cement and Concrete Research, 29 (3). pp. 397-406. ISSN 0008-8846. doi:10.1016/S0008-8846(98)00223-3.

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Cement paste, mortar, and concrete were studied to examine the influence of loading rate on operative toughening mechanisms. The fracture toughness of cement paste was found to be independent of crack length, while mortar and concrete exhibited strongly rising resistance curves. In the case of cement paste and mortar, the peak fracture toughness was found to be independent of the loading rate. Ln concrete, the peak toughness was found to decrease with increasing loading rate. Surface roughness measurements were performed to understand the effect of loading rate on the fracture mechanisms. The roughness analysis coupled with fractography were found to correlate with the toughness measurements.

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Faber, K. T.0000-0001-6585-2536
Additional Information:Copyright © 1999 Elsevier. Manuscript received 10 September 1998; accepted manuscript 27 November 1998. This paper was originally submitted to Advanced Cement Based Materials. The paper was received at the Editorial Office of Cement and Concrete Research on 10 September 1998 and accepted in final form on 27 November 1998. This work was supported by the National Science Foundation Center for Advanced Cement Based Materials at Northwestern University. The authors wish to thank T.C. Easley for reading and assisting with the manuscript.
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Subject Keywords:Cementitious; Fracture; Loading rate; Resistance curves; Surface roughness; Toughness; Toughening mechanisms
Issue or Number:3
Record Number:CaltechAUTHORS:20140908-181324822
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49405
Deposited By: George Porter
Deposited On:12 Sep 2014 19:01
Last Modified:10 Nov 2021 18:43

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