POLYESTER CONCRETE: LOAD RATE VARIANCE

THE EFFECT OF THE VARIANCE OF LOAD RATE ON THE ENGINEERING PROPERTIES OF A PLAIN POLYESTER CONCRETE SYSTEM WAS INVESTIGATED. BOTH THE TENSILE AND COMPRESSIVE PHASES OF THE SYSTEM WERE EVALUATED. IN THE TENSILE PHASE, THE LOAD RATES RANGED FROM SLOW STATIC THROUGH THE DYNAMIC RANGE; WHEREAS IN THE COMPRESSIVE PHASE, THE LOAD RATES VARIED FROM VERY SLOW STATIC THROUGH VERY HIGH STATIC. TESTS WERE CONDUCTED USING ONE TYPE OF A POLYESTER RESIN COMBINED WITH A FEASIBLE GRADATION OF A STANDARD REPRODUCIBLE AGGREGATE. WHEREVER POSSIBLE, STANDARD ASTM TESTS FOR PORTLAND CEMENT CONCRETE WERE USED WITH EACH LOAD RATE HELD CONSTANT THROUGHOUT THE TESTING TIME OF EACH SPECIMEN. ULTIMATE STRESS, MODULUS OF ELASTICITY, AND THE STRAIN AT ULTIMATE STRESS WERE THE BASIC ENGINEERING PROPERTIES CONSIDERED. SIGNIFICANT VARIATION OF THESE THREE PROPERTIES IN BOTH THE TENSILE AND COMPRESSIVE PHASES WAS OBTAINED BY VARYING THE LOAD RATE. THIS INVESTIGATION CONCLUSIVELY SHOWED THAT THE POLYESTER CONCRETE SYSTEM STUDIED WILL WITHSTAND BOTH SLOW AND FAST STATIC LOADING CONDITIONS IN BOTH TENSION AND COMPRESSION. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1969/287/287-003.pdf
• Supplemental Notes:
  • Paper sponsored by Committee on Adhesives, Bonding Agents and Their Uses and presented at the 48th 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:
  • KNAB, LAWRENCE I
• Publication Date: 1969

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 19-31
• Monograph Title: Cylinder piles; bridge construction; polyester concrete; unpainted steel corrosion; weld inspecting; joints and sealants
• Serial:
  • Highway Research Record
  • Issue Number: 287
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Aggregate gradation; Compressive strength; Concrete; Concrete tests; Loads; Modulus of elasticity; Polyester resins; Portland cement concrete; Static loads; Strain (Mechanics); Stresses; Tensile strength; Ultimate strength
• Uncontrolled Terms: Loading rate
• Old TRIS Terms: Static loading; Strains
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00216895
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Dec 22 1994 12:00AM