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Resistance of mortars containing silica fume to attack by a solution containing chlorides

From National Research Council Canada

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DOIResolve DOI: https://doi.org/10.1016/0008-8846(85)90114-0
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Affiliation
  1. National Research Council of Canada
FormatText, Article
Subjectcement mortar; concrete admixtures; chloride; chemical corrosion; magnesium (mg-), calcium (ca-) and sodium (na-) chlorides; various slica fume percentages; stiffness; pore size distribution; calcium hydroxide (caoh2) content; increased durability; Mortar; Concrete; mortier de ciment; adjuvant; chlorure; corrosion chimique
Abstract
Mortars prepared at water/cement + silica fume ratios, w/(c+ sf), of 0.45 and 0.60 were exposed to a solution containing a mixture of Mg-, Ca- and Na- chlorides to investigate their resistance to attack. Mixes contained 0, 10 and 30% silica fume, and sand-binder ratio was 2.25. Stiffness, pore-size distribution, Ca(OH)p2] content and nonevaporable water were measured before and after exposure to salt solution. Inclusion of silica fume resulted in increased durability of mortar, especially in specimens prepared at w/(c+sf) of 0.45 and cured for 28 days. Specimens prepared at the same w/(c+ sf) with 30% silica fume were also durable even after seven days of curing. Calcium hydroxide in mortars was reduced to zero by exposure to the salt solution.
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  • Cement and Concrete Research 15, no. May 3 (1 May 1985): 411–420.
LanguageEnglish
Peer reviewedYes
IdentifierDBR-P-1292
NRC numberNRCC 24628
NRC-IRC-3342
NPARC number20375929
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Record identifier7e013027-7c91-473d-9221-e88df1b1fcec
Record created2012-07-23
Record modified2020-06-06
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