BRIEF REVIEW OF ALKALI ACTION ON PORTLAND CEMENT CONCRETE
THE SULFATES OF SODIUM AND MAGNESIUM, USUALLY IN COMBINATION, ARE THE TWO SALTS OF MOST COMMON OCCURRENCE DELETERIOUS TO CONCRETE. IT MAY BE ASSUMED THAT IT IS THE PHYSICAL RESULT OF THE CHEMICAL ACTION OF ONE OR BOTH OF THESE SULFATES, AND POSSIBLY TO SOME EXTENT CALCIUM SULFATE AND SOME OF THE CHLORIDES, THAT IS MEANT WHEN REFERENCE IS MADE TO ALKALI ACTION ON CONCRETE. INVESTIGATIONS CONDUCTED UP TO THE PRESENT DATE ARE REVIEWED. THESE INVESTIGATIONS REVEAL THAT CAREFULLY MADE LONG-TIME CURED CONCRETE, VERY RICH IN CEMENT AND OF HIGH COMPRESSIVE STRENGTH AND LOW PERMEABILITY BEST RESIST THE ACTION OF ALKALI. ADMIXTURES, AS A RULE, HAVE NOT PROVEN BENEFICIAL. SURFACE COATINGS APPARENTLY HAVE SOME POSSIBILITIES. A CONSIDERABLE DIFFERENCE IN RESISTANCE AMONG PORTLAND CEMENTS WAS NOTED.
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Supplemental Notes:
- Vol 6, pp 223-229. 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:
- Miller, D G
- Publication Date: 1927
Media Info
- Media Type: Digital/other
- Monograph Title: Proceedings of the Sixth Annual Meeting of the Highway Research Board Held at Washington, D.C., December 2-3, 1926
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Serial:
- Highway Research Board Proceedings
- Volume: 6
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Admixtures; Alkali; Calcium compounds; Chemical reactions; Chlorides; Coatings; Compressive strength; Concrete; Durability; Magnesium compounds; Permeability; Portland cement concrete; Reviews; Sodium sulfate; Sulfates; Surfaces
- Old TRIS Terms: Alkalies
- Subject Areas: Highways; Materials;
Filing Info
- Accession Number: 00213730
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Jun 11 1971 12:00AM