Composite beams consisting of reinforced concrete and a layer or cap of polyester concrete in the region of high compressive stress are tested and evaluated. The creep characteristics of polyester concrete were evaluated using 1000 hr creep tests, and the effect of sustained load on the ultimate compressive strength was also determined. Composite beams which were 6x6.5x64 in. (15.2x16.5x162.6 cm) were fabricated by capping precast reinforced concrete beams with a layer of fibrous polyester concrete of various given thicknesses. The composite beams were subjected to third-point loads on a simply supported length of 57 in. (145 cm). Load-deflection behavior and ultimate strength were determined for various combinations of reinforcement and depth of fibrous polyester concrete cap. Experimental and analytical results indicate that the fibrous polyester concrete composite beams are performance and material cost effective relative to reinforced concrete beams with the same percentage to tensile reinforcement. /ACI/

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  • Supplemental Notes:
    • These abstracts are brief summaries of all ACI technical material published outside of these proceedings and are indexed in the Annual Proceedings Index. Number SP 40-14.
  • Corporate Authors:

    American Concrete Institute

    P.O. Box 19150, Redford Station, 22400 Seven Mile Road
    Detroit, MI  United States  48219
  • Authors:
    • Lott, J
    • Naus, D
    • Howdyshell, P
  • Publication Date: 1973-11

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Filing Info

  • Accession Number: 00264799
  • Record Type: Publication
  • Report/Paper Numbers: Proceeding
  • Files: TRIS
  • Created Date: Feb 11 1975 12:00AM