Temperature dependence of compressive strength of conversion-inhibited high alumina cement concrete

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TypeArticle
Journal titleACI Materials Journal
Volume94
IssueNov-Dec 6
Pages540545; # of pages: 6
SubjectAdmixtures
AbstractThe strength reduction of high alumina cement (HAC) concrete due to conversion is one of the major reasons given for limiting the use of HAC in structural members. A conversion-inhibited concrete is introduced in this paper. The effect of curing and exposure conditions (e.g., temperature) on the compressive strength of HAC or modified HAC concretes was studied. Ground granulated blast furnace slag (ggbs) and a conversion-preventing additive (CPA) containing natural zeolite or silica fume in combination with sodium sulfate were used to inhibit the strength reduction at the HAC concretes. The results indicated that conversion-inhibited HAC concrete containing a CPA has a one-day compressive strength greater than 55 MPa when cured at 4-5 deg C. The strength of the HAC/CPA concrete is much less affected by the concrete temperature than plain HAC or HAC/ggbs concrete.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number39811
6140
NPARC number20338515
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Record identifierff7a420c-cc2e-4d48-a289-48a790ffb72a
Record created2012-07-19
Record modified2016-05-09
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