Determination of the firing temperature of clay brick

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Journal titleAmerican Ceramic Society Bulletin
Pages61718, 627
Subjectclay bricks; heat treatment; freeze thaw cycles; physical changes; quality control; heating - cooling cycle; length anomaly; endothermic heat effect; differential scanning calorimetry; Brick; brique en terre cuite; traitement par la chaleur; gel degel; alteration physique; controle de qualite
AbstractWhen clay brick were fired at various temperatures between 900 degrees and 1050 degrees C and subjected to a heating- cooling cycle (20 degrees to 1050 degrees C) in a dilatometer, the magnitude of the length anomaly at 573 degrees C, due to alpha quartz-beta quartz inversion, and that of residual shrinkage were found to be a function of the temperature at which the bricks had originally been fired. This was true also for the magnitude of the endothermic heat effect determined by differential scanning calorimetry. It is suggested that these methods be utilized to determine the firing temperature of brick as an index for quality control purposes.
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AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number23489
NPARC number20373933
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Record identifier6b0e435c-5a21-41e9-bc30-997ae0840838
Record created2012-07-23
Record modified2016-05-09
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