RELATIONSHIP BETWEEN AGGREGATE PORE CHARACTERISTICS AND DURABILITY OF CONCRETE EXPOSED TO FREEZING AND THAWING
VARIOUS COARSE AGGREGATES RANGING FROM CRUSHED LIMESTONES AND TRAPROCK TO GRAVELS FROM GLACIAL AND NONGLACIAL SOURCES WERE OBTAINED FROM DIFFERENT PARTS OF THE UNITED STATES AND CANADA. CONCRETE SPECIMENS MADE FROM THESE AGGREGATES WERE EXPOSED TO LABORATORY FREEZING-AND-THAWING CYCLES. SPECIMENS FOR A MERCURY INTRUSION POROSITY TEST WERE HANDPICKED TO REPRESENT THE AGGREGATE BEING TESTED AND BROKEN INTO SMALL PARTICLES. FOR THE EIGHT AGGREGATES TESTED, FREEZE-THAW DURABILITY WAS COMPARED TO AGGREGATE PORE CHARACTERISTICS AS DETERMINED BY THE MERCURY-INTRUSION POROSITY TEST. SEVERAL CHARACTERISTICS WERE FOUND TO RELATE QUITE WELL WITH FREEZE- THAW DURABILITY, ESPECIALLY THE AMOUNT OF PORES FOUND IN THE PLUS 8 MINUS MICRON RANGE. /AUTHOR/
- Record URL:
-
Supplemental Notes:
- Paper sponsored by Committee on Mineral Aggregates and presented at the 47th Annual Meeting. 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:
- Walker, Richard D
- Hsieh, Tai-Chou
- Publication Date: 1968
Media Info
- Media Type: Print
- Features: Figures; References; Tables;
- Pagination: pp 41-49
- Monograph Title: Concrete Admixtures Aggregates and Durability
-
Serial:
- Highway Research Record
- Issue Number: 226
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Aggregates; Coarse aggregates; Concrete; Crushed limestone; Durability; Freeze thaw durability; Freeze thaw tests; Mercury; Pores; Porosity; Trap rock
- Uncontrolled Terms: Pores
- Old TRIS Terms: Trap rock coarse aggregate
- Subject Areas: Geotechnology; Highways; Materials;
Filing Info
- Accession Number: 00213218
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Sep 12 1994 12:00AM