CEMENT-POZZOLAN REACTIONS
MIXTURES OF CALCIUM HYDROXIDE, POZZOLAN, AND WATER WERE REACTED AT 100F FOR 1 TO 6 MONTHS, AND THE REACTION PRODUCTS WERE EXAMINED BY X-RAY DIFFRACTION AND THERMAL ANALYSIS. THE COMPOUNDS IDENTIFIED INCLUDED A POORLY CRYSTALLIZED CALCIUM SILICATE HYDRATE, TRICALCIUM ALUMINATE HEXA-HYDRATE (OR HYDROGARNET), TETRACALCIUM ALUMINATE HYDRATE CONTAINING CARBON DIOXIDE, AND STRATLING'S QUATERNARY COMPOUND, CALCIUM OXIDE, ALUMINUM OXIDE, SILICON OXIDE, WATER. MIXTURES OF PORTLAND CEMENT, POZZOLAN, AND WATER UNDER SIMILAR CONDITIONS YIELDED POORLY CRYSTALLIZED CALCIUM SILICATE HYDRATE, COMPLEX CALCIUM ALUMINATE HYDRATES CONTAINING SILICON OXIDE AND/OR CARBON DIOXIDE, CALCIUM HYDROXIDE, AND STRATLING'S COMPOUND. THE REACTION PRODUCTS OBTAINED DEPENDED ON THE TYPE OF POZZOLAN AND/OR ON THE COMPOSITION OF THE PORTLAND CEMENT, AND, TO A LESSER DEGREE, ON OTHER FACTORS. /AUTHOR/
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Supplemental Notes:
- No 239, pp 56-65, 8 FIG, 2 TAB, 13 REF Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
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Authors:
- Benton, E J
- Publication Date: 1960
Media Info
- Media Type: Digital/other
- Pagination: 10p
- Monograph Title: Physical and chemical properties of cement and aggregate in concrete
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Serial:
- Highway Research Board Bulletin
- Issue Number: 239
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Aluminum compounds; Calcium compounds; Carbon dioxide; Diffraction; Portland cement; Pozzolan; Silicon compounds; Thermal analysis; Water; X rays
- Uncontrolled Terms: X-ray diffraction
- Old TRIS Terms: Reaction
- Subject Areas: Highways; Materials;
Filing Info
- Accession Number: 00213213
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Aug 19 1994 12:00AM