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Unsoundness of cements containing MgO and CaO

From National Research Council Canada

Alternative titleInstabilita dei cemeti contenenti MgO e CaO
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Affiliation
  1. National Research Council of Canada
FormatText, Article
SubjectConcrete; cement; magnesium; oxides; chemical analysis; limestone; expansion
Abstract
Hard-burned MgO and CaO cause volume expansion in hardened cements. Particle size of these oxides, their distribution in the cement matrix and amount present in cement determine the degree of expansion. Addition of pozzolanas reduces expansion, but the mechanism responsible for this effect is not clear. The autoclave method of testing soundness of cements does not reflect the hydration processes occurring under practical exposure conditions.
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In
  • Il Cemento 78, no. 3 (1980): 159–168.
LanguageItalian
Peer reviewedYes
IdentifierDBR-P-969
NRC numberNRCC 19276
NRC-IRC-3023
NPARC number20375741
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Record identifierc223c1b2-7b62-4146-837c-62867c9fc755
Record created2012-07-23
Record modified2024-03-19
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