CHEMICAL TREATMENTS OF POLYPROPYLENE FIBER SURFACES USED IN FIBER REINFORCED CONCRETES

This paper reports the results of an experimental investigation to determine the effects of chemical treatment of polypropylene fibers (PPF) used in reinforced concretes. The control group concrete was designed at 4,000 psi. The chemical solution used to treat the fiber surfaces was a basic solution of linear alcohol alkoxylates. The investigation included comparison of some static strength as well as the interfacial bond characteristics of unreinforced, plain fiber reinforced, and chemically treated fiber reinforced concretes that were cured for two different periods of 28 and 45 days. Three separate methods of testing were conducted to ascertain the mechanical measures of the concrete samples: compression testing (ASTM 4.02, C-39), flexure strength tests (ASTM 4.02, C-78), and splitting tensile tests (ASTM 4.02, C-496). A random sampling of the failed PPF specimens was prepared and observed using the scanning electron microscopy (SEM) technique. The interfacial features of the fiber surfaces were evaluated to determine the bonding characteristics between the fiber and the concrete matrix. A correlation between the chemical surface treatment of the PPF and the mechanical measures were statistically analyzed.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1989/1226/1226-005.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=CHEMICAL+TREATMENTS+OF+POLYPROPYLENE+FIBER+SURFACES+USED+IN+FIBER+REINFORCED+CONCRETES&author=M.+Fahmy&author=N.+Lovata&publication_year=1989
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  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309049539
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1226, International Symposium on Recent Developments in Concrete Fiber Composites. 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:
  • Fahmy, M F
  • Lovata, Norbert L
• Conference:
  • International Symposium on Recent Developments in Concrete Fiber Composites, 1989, Washington, DC, USA
• Publication Date: 1989

Media Info

• Features: Figures; Photos; References;
• Pagination: p. 31-35
• Monograph Title: International symposium on recent developments in concrete fiber composites
• Serial:
  • Transportation Research Record
  • Issue Number: 1226
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Bonding; Chemicals; Compression tests; Fiber reinforced concrete; Flexural strength; Laboratory tests; Polypropylene; Soil stabilization; Statistical analysis; Tensile strength
• Old TRIS Terms: Chemical treatments
• Subject Areas: Data and Information Technology; Geotechnology; Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00495051
• Record Type: Publication
• ISBN: 0309049539
• Files: TRIS, TRB
• Created Date: Jun 30 1990 12:00AM