New methods for assessing brick resistance to freeze-thaw cycles
Author(s): |
I. Netinger-Grubeša
M. Benšić M. Vračević |
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Medium: | journal article |
Language(s): | Spanish |
Published in: | Materiales de Construccion, July 2021, n. 343, v. 71 |
Page(s): | e258 |
DOI: | 10.3989/mc.2021.04421 |
Abstract: |
The aim of this research is to analyse the reliability of the existing methods, and find new ones, for assessing brick resistance to freeze-thaw cycles. A series of bricks were tested against a range of properties; compressive strength ratios pre- to post-freezing and Maage’s factor, were calculated. Using a database created in this way, an analysis of existing classifiers was carried out and new ones were established based on which bricks could be classified into resistant and non-resistant to freeze-thaw cycles. The median pore radius, the ratio of compressive strengths pre- to post-freezing and the water desorption coefficient at 180-360 minutes proved to be good classifiers with a clearly specified cut-off for the distinction between resistant and non-resistant bricks with an acceptable risk of a wrong decision. The ratio of compressive strengths pre to post freezing and the water desorption coefficient at 180-360 minutes were described using the pore system in the brick. |
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10624199 - Published on:
26/08/2021 - Last updated on:
26/08/2021