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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: Some Properties of Portland Pozzolana Cements
Author(s): George L. Kalousek and C. H. Jumper
Publication: Journal Proceedings
Appears on pages(s): 145-164
Abstract:An investigation was made of I2 portland-poz-zolan, (including 2 laboratory blends), I natural and 2 standard portland cements. The cements were tested for part, or all, of the following: strengths, resistance to corn binations of cycles of freezing, thawing, drying, and soaking; also length changes during alternate wetting and drying, resistance to sulfate solutions, linear changes in autoclave tests, and heats of hydration. Chemical analyses were also made. The commercial Portland-pozzolan cements showed strengths approximating, and in some cases ex- ceeding, those required by specifications for standard portland cements. Nearly the same linear changes were shown by all the cements in alternate wetting and drying tests. The Portland-pozzolan cements showed better resistance to a IO percent sodium sulfate solution than the portland cements, at 4 weeks, but at later ages the results tended to be the same. The heats of hydration and resistance to cycles of freezing, thawing and drying [65 C (150 F)] of the Portland-pozzolan cements did not compare unfavorablv with those of the standard portland c e m e n t s . ’ .
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