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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Sulfate Resistance of Mortars Containing Superplasticizers with Fly Ash or Blast Furnace Slag
Author(s): N. P. Mailvaganam, R. S. Bhagrath,
and K. L. Shaw
Publication: Special Publication
Appears on pages(s): 535-556
Keywords: blast furnace slag; compressive strengt -- mechanical properties; mix proportioning; mortars
plasticizers; sulfate resistance; sulfate-resistin
h; fly ash;
(materi al) a ; g cemen ts;
Abstract:The sulphate resistance of mortar lng a superplasticizer and made with blends Type 10 cement, fly ash and granulated blast slag are compared with similar mortars conta ventional water reducing admixture. Compari made with mortars made with C.S.A. Type 50 c Changes in porosity, weight, length, dynamictain- elasticity and compressive strength of the exposed to alternate soaking and ium sulphate solutions for 300 days are desc lus of specified-Interrelationship of w/c ratio, alkalinity of the medium and porosity as primary factors in sulphate attack on the cement paste were investigated. The results indicate that mixes containing a 30% replacement of normal Portland cement by fly ash or slag and a superplasticizer are comparable to mixes made from sulphate resisting cement in their capacity to resist sulphate attack. The degree of attack noted in the superplasticized mixes was significantly reduced in com-parison with mortars where a conventional water reducing admixture was used.
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