TESTING FOR DELETERIOUS MATERIALS IN CONCRETE AGGREGATES

THE HARMFUL EFFECTS OF DELETERIOUS SUBSTANCES IN AGGREGATES WERE TESTED BY MEANS OF CONCRETE BEAMS IN WHICH THE COARSE AGGREGATES WAS COMPOSED ENTIRELY OF PARTICLES OF THE MATERIALS UNDER SUSPICION. THE BEAMS WERE TESTED IN FLEXURE AND SUBJECTED TO FREEZING AND THAWING. BREAKAGE UNDER FREEZING AND THAWING AND LOW STRUCTURAL STRENGTH INDICATED THE MATERIALS WHICH HAD BAD EFFECTS. THIS APPEARS TO B A BETTER METHOD OF TESTING THAN FREEZING AND THAWING OF THE AGGREGATES ALONE. /AUTHOR/

• Record URL:
  https://onlinepubs.trb.org/Onlinepubs/hrbproceedings/18/18Part1-023.pdf
• Supplemental Notes:
  • Vol 18, Pt 1, PP 250-254, 8 FIG. 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.
• Authors:
  • Lang, F C
• Publication Date: 1939

Media Info

• Media Type: Digital/other
• Monograph Title: Proceedings of the Eighteenth Annual Meeting of the Highway Research Board Held at Washington, D.C. November 28-December 2, 1938. Part I
• Serial:
  • Highway Research Board Proceedings
  • Volume: 18
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Beams; Coarse aggregates; Concrete; Concrete aggregates; Deleterious materials; Flexure; Freeze thaw durability
• Uncontrolled Terms: Concrete beams
• Old TRIS Terms: Freezing thawing effects
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00213791
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Jun 1 1971 12:00AM