FATIGUE STRENGTH OF FIBRILLATED POLYPROPYLENE FIBER REINFORCED CONCRETES

This paper presents the results of an experimental investigation to determine the flexural fatigue strength of concrete reinforced with three different concentrations of fibrillated polypropylene fibers. The properties and the performance of fresh and hardened concretes with and without fibers are compared. The test program included the evaluation of 1) flexural fatigue strength and endurance limit; 2) hardened concrete properties, such as compressive strength, static modulus, pulse velocity, modulus of rupture, and toughness indexes; and 3) fresh concrete properties, including slump, vebe time, inverted cone time, air content, and concrete temperature. The test results indicated an appreciable increase in post-crack energy absorption capacity and ductility due to the addition of fibers. When compared with corresponding plain concrete, the flexural fatigue strength and the endurance limit (for 2 million cycles) significantly increased. The static flexural strength increased after being subjected to fatigue loading.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1989/1226/1226-006.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=FATIGUE+STRENGTH+OF+FIBRILLATED+POLYPROPYLENE+FIBER+REINFORCED+CONCRETES&author=M.+Nagabhushanam&author=V.+Ramakrishnan&author=G.+Vondran&publication_year=1989
• Availability:
  • 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:
  • Nagabhushanam, M
  • Ramakrishnan, V
  • Vondran, Gary
• Conference:
  • International Symposium on Recent Developments in Concrete Fiber Composites, 1989, Washington, DC, USA
• Publication Date: 1989

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 36-47
• 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: Concentration (Chemistry); Concrete; Concrete hardening; Ductility; Durability tests; Energy absorption; Fatigue strength; Fiber reinforced concrete; Flexural strength; Fresh concrete; Laboratory tests; Performance; Physical properties; Polypropylene
• Uncontrolled Terms: Concentration; Concrete properties; Hardened concrete
• Old TRIS Terms: Endurance limit; Test results
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00495052
• Record Type: Publication
• ISBN: 0309049539
• Files: TRIS, TRB
• Created Date: Jun 30 1990 12:00AM