MICROSTRUCTURAL DEVELOPMENT IN A HIGH-STRENGTH CONCRETE CONTAINING A TERNARY CEMENTITIOUS SYSTEM
The cause is investigated and the microstructural characteristics are determined of the sudden upsurge of mechanical strength at 12 h in a silica-fume/fly ash high-strength concrete. The concrete was subject to progressive hydration from 1 to 91 days. It is noted that the early increase in compressive strength in a silica fume/fly ash concrete might be explained by the dissolution of a certain quantity of K2O from the surface of a substantial number of fly-ash particles in very early hydration. In contrast, silica-fume concrete with identical cement, aggregates, and W/C fails to develop such high strength though this trend was reversed from age one day. This and other findings are discussed.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/3528769
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Corporate Authors:
American Society for Testing and Materials (ASTM)
100 Barr Harbor Drive, P.O. Box C700
West Conshohocken, PA United States 19428-2957 -
Authors:
- Sarkar, S L
- Baalbaki, M
- Aitcin, P-C
- Publication Date: 1991
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 81-87
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Serial:
- Cement, Concrete and Aggregates
- Volume: 13
- Issue Number: 2
- Publisher: American Society for Testing and Materials (ASTM)
- ISSN: 0149-6123
- Serial URL: http://journalsip.astm.org/JOURNALS/CEMENT/cca_home.html
Subject/Index Terms
- TRT Terms: Compressive strength; Concrete; Fly ash; High strength concrete; Hydration; Microstructure; Silica fume
- Subject Areas: Highways; Materials; I32: Concrete;
Filing Info
- Accession Number: 00618039
- Record Type: Publication
- Files: TRIS
- Created Date: Dec 31 1991 12:00AM