Moisture content and freeze-thaw cycles of masonry materials

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Journal titleJournal of Materials
Pages658671; # of pages: 14
Subjectmasonry products; freeze thaw cycles; moisture content; durability; weathering; testing; masonry; bricks; mortars; stones; moisture; rain; temperature; freezing; durability; evaluation; Masonry
AbstractChanges in the moisture content and temperature of masonry materials exposed to the weather at two locations for two years depended on several factors. The moisture content was influenced mainly by the nature of the material exposed, its geographical location and direction of exposure, and the season of the year. The temperature also depended on geographical location and direction of exposure and on daily and seasonal changes in air temperature. The number of freeze-thaw cycles experienced by the samples was considerably influenced by the direction of exposure as well as by geographical location. The rate of freezing of the exposed samples and the moisture content when frozen--two factors important to durability--differed considerably from the freezing rate and moisture content used in a standard test for brick durability. The results of the exposure tests suggest that more realistic conditions should be used in laboratory freeze-thaw testing.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number10297
NPARC number20374975
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Record identifier60389cba-8efd-495f-bf21-02706b1451c8
Record created2012-07-23
Record modified2016-05-09
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