The effectiveness of supplementary cementing materials in suppressing expansion due to ASR: Another look at the reaction mechanisms; Part 1: Concrete expansion and portlandite depletion

Journal Article · Fri Apr 01 04:00:00 EST 1994 · Cement and Concrete Research

DOI:https://doi.org/10.1016/0008-8846(94)90084-1· OSTI ID:142332

Duchesne, J; Berube, M A ^[1]

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1. Univ. Laval, Quebec City, Quebec (Canada). Dept. de Geologie et de Genie geologique

Portlandite content (TGA) of cement pastes made with two condensed silica fumes, three pulverized fly ashes and one ground granulated blast furnace slag was measured during a 1 year time period. Results were compared to expansions obtained for a 2 year time period in the CAN/CSA A23.2-14A Concrete Prism Method for concrete specimens made with two very alkali-silica reactive aggregates and tested at the same conditions and water/cement/supplementary cementing materials. No correlation was obtained between reduction in concrete expansion and the portlandite depletion which appears to be only a consequence of pozzolanic reaction.

• OSTI ID: 142332
• Journal Information: Cement and Concrete Research, Journal Name: Cement and Concrete Research Journal Issue: 1 Vol. 24; ISSN 0008-8846; ISSN CCNRAI
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
36 MATERIALS SCIENCE
CHEMICAL REACTIONS
CONCRETES
EXPANSION
FLY ASH
MATERIAL SUBSTITUTION
MATERIALS TESTING
PORTLAND CEMENT
SLAGS
WASTE PRODUCT UTILIZATION