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

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DOIResolve DOI: http://doi.org/10.1016/0008-8846(85)90114-0
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TypeArticle
Journal titleCement and Concrete Research
ISSN0008-8846
Volume15
IssueMay 3
Pages41120; # of pages: 392
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
AbstractMortars 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.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
IdentifierDBR-P-1292
NRC number24628
3342
NPARC number20375929
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Record identifier7e013027-7c91-473d-9221-e88df1b1fcec
Record created2012-07-23
Record modified2016-05-09
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