CONCRETE FOR TUNNEL LINERS: PUMPABLE FIBER REINFORCED CONCRETE

This study was undertaken to develop a procedure for designing fiber reinforced concrete mixes that may be delivered by pumping and to provide information on this method for applications in tunnel liners. The presence of fibrous reinforcement in the concrete increases the harshness of the mix and, therefore increases the complexity of pumping problems. However, by selecting combinations of fine aggregates, coarse aggregates and fibers which result in a minimum volume of voids and providing a paste content slightly in excess of the voids, fiber reinforced concretes can be pumped. Mixes with four different maximum sizes of aggregate were found to be pumpable when evaluated in the laboratory.

• Corporate Authors:

  University of Illinois, Urbana-Champaign

  Department of Civil and Environmental Engineering
  205 North Mathews Avenue
  Urbana, IL  United States  61801-2352
• Authors:
  • Ounanian, D W
  • Halvorsen, G T
  • Kesler, C E
• Publication Date: 1975-8

Media Info

• Features: Figures; References; Tables;
• Pagination: 45 p.

Subject/Index Terms

• TRT Terms: Admixtures; Coarse aggregates; Concrete; Fiber reinforced concrete; Fine aggregates; Pumped concrete; Tunnel lining; Tunneling; Void ratios
• Old TRIS Terms: Void
• Subject Areas: Bridges and other structures; Construction; Highways; Materials;

Filing Info

• Accession Number: 00128496
• Record Type: Publication
• Report/Paper Numbers: FRA OR&D 75-88 Final Rpt.
• Contract Numbers: DOT-FR-30022
• Files: TRIS
• Created Date: Mar 10 1976 12:00AM