Frost-durability study on Canadian clay bricks. III. Characterization of raw materials and burnt bricks

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Journal titleDurability of Building Materials
Pages125143; # of pages: 19
Subjectclay bricks; freeze thaw cycles; durability; shale; quartz; water absorption; saturation point; properties of materials; physical properties; chemical properties; mineralogy; mineralogical properties of bricks; chemical, physical characterization of bricks; brick plant samples; laboratory firing; illites; chlorites; geological formation; shales; free quartz; total silica; calcium carbonate; brick firing temperature range; water absorption; forming technique; saturation coefficient; green bricks; Brick; brique en terre cuite; gel dégel; durabilité; schiste; quartz; absorption d'eau; saturation (vapeur); proprié té des materiaux; propriété physique; propriété chimique; mineralogie
AbstractChemical, mineralogical and physical characterization of nine Canadian brickmaking raw materials, as well as the general physical properties of the corresponding burnt samples from the brick plants and the laboratory firing, are studied. Possible relationships between the properties of the raw material and the burnt brick are discussed. All the raw materials contained illites mixed with chlorites. The geological formation of the shales seems to determine the relationships between free quartz and total silica, and between free quartz and calcium carbonate. Within the normal brick-firing temperature range, the water absorption of the burnt brick is a function of the calcium carbonate content and the forming technique. The saturation coefficient seems proportional to the amount of fine particles in the green bricks and inversely proportional to the coarse fraction. All laboratory-fitted samples, except one type, show absorption characteristics similar to the plant-burnt bricks.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number28551
NPARC number20374568
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Record identifierfe53dae1-15ab-45ac-ad3e-e908ed85438c
Record created2012-07-23
Record modified2016-05-09
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