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.
University of Illinois, Urbana-ChampaignDepartment of Civil and Environmental Engineering
205 North Mathews Avenue
Urbana, IL USA 61801-2352
- Ounanian, D W
- Halvorsen, G T
- Kesler, C E
- Publication Date: 1975-8
- Features: Figures; References; Tables;
- Pagination: 45 p.
- 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;
- 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