PROPERTIES OF FIBER REINFORCED STRUCTURAL LIGHTWEIGHT CONCRETE

The authors of this paper present the results of an experimental study of the behvaior of fiber reinforced structural lightweight concrete. Properties investigated include workability and behavior under compression, splitting tension, and flexure. The independent variables were composition of fine aggregate, fiber content, fiber length, and presence of silica fume. Fine aggregate consisted of all lightweight aggregate or combinations of lightweight aggregate and nautral sand. Two fiber lengths were investigated with various fiber contents. The lightweight aggregate used was made of expanded shale. High-range water-reducing admixture was used to improve workability. An air-entraining admixture was used to reduce the unit weight and improve workability. Results reveal that a compressive strength of approximately 42 MPa can be obtained for concretes with an equilibrium density of 1650 kg/m3. Fibers increase flexural and splitting tensile strengths significantly. The modulus of elasticity is enhanced by about 30 percent. Fiber reinforced concrete displays excellent ductility.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846957
• Corporate Authors:

  American Concrete Institute

  P.O. Box 19150, Redford Station, 22400 Seven Mile Road
  Detroit, MI  United States  48219
• Authors:
  • Balaguru, P
  • Foden, A
• Publication Date: 1996-1

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 62-78
• Serial:
  • ACI Structural Journal
  • Volume: 93
  • Issue Number: 1
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-3241
  • Serial URL: http://www.concrete.org/PUBS/JOURNALS/SJHOME.ASP

Subject/Index Terms

• TRT Terms: Air entraining agents; Compression; Expanded shale aggregates; Fiber reinforced concrete; Flexural strength; Lightweight concrete; Modulus of elasticity; Silica fume; Tensile strength; Toughness; Water reducing agents
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00719313
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 24 1996 12:00AM