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Flexural strength of weathered granites: Influence of freeze and thaw cycles

journal contribution
posted on 19.07.2018, 00:00 by S Noor-E-Khuda, Faris AlbermaniFaris Albermani, M Veidt
© 2017 Elsevier Ltd The effect of freeze-thaw cycles (FTC) on the flexural strength of granite panels is investigated in this paper. Specimens from three different types of Australian granite were sampled. Fifteen specimens were used as control (unweathered) specimens while another 36 specimens were subjected to accelerated weathering consisting of 100 FTC over a period of 34 days. A controlled freeze-thaw chamber and a temperature range between −10 °C and +70 °C was used for this purpose. Ultrasonic pulse velocity (UPV) of the specimens was measured before and after FTC testing. Flexural strength tests were conducted after the FTC were completed. Results showed that thin granite veneers suffered physical degradation accompanied by a noticeable reduction in UPV, density and flexural strength following FTC. Correlation between flexural strength and UPV and between unweathered and weathered UPV is proposed for the three types of Australian granite used in this paper.

History

Volume

156

Start Page

891

End Page

901

Number of Pages

11

ISSN

0950-0618

Publisher

Elsevier, Netherlands

Peer Reviewed

Yes

Open Access

No

Acceptance Date

11/09/2017

External Author Affiliations

The University of Queensland

Era Eligible

Yes

Journal

Construction and Building Materials