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Relationship between brittleness and moisture loss of concrete exposed to high temperatures.

Zhang, Ben, Bicanic, Nenad, Pearce, Christopher J and Phillips, David V (2002) Relationship between brittleness and moisture loss of concrete exposed to high temperatures. Cement and Concrete Research, 32 (3). pp. 363-371. ISSN 0008 8846

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Abstract/Description

The effect of moisture loss at high temperatures on the brittleness of concrete was investigated by conducting three-point bending tests on preheated notched beams. The relationships of moisture loss represented by mass loss with heating temperature and exposure time could be established. Higher heating temperature always led to higher mass loss and lower brittleness. Longer exposure time led to higher mass loss and lower brittleness, but this effect was more significant at the early exposure stage and became insignificant thereafter. When concrete is exposed to high temperatures, the brittleness is reduced. The evaporation of gel water was more closely related to the brittleness.

Item Type: Article
Print ISSN: 0008 8846
Electronic ISSN: 1873-3948
Uncontrolled Keywords: Concrete; Physical properties; High temperatures; Effects; Moisture loss; Brittleness; Three-point tests;
Dewey Decimal Subjects: 600 Technology > 620 Engineering > 620 Engineering & allied operations
600 Technology > 620 Engineering > 624 Civil engineering
Library of Congress Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Item ID: 1898
Depositing User: RAE Import
Date Deposited: 18 Feb 2008 15:27
Last Modified: 05 Jul 2013 14:36
URI: http://researchrepository.napier.ac.uk/id/eprint/1898

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