CONCRETE FOR TUNNEL LINERS: BEHAVIOR OF FIBER REINFORCED QUICK SETTING CEMENT CONCRETE
This study was undertaken to determine the behavior of steel fiber reinforced, quick-setting cement concrete and provide information on these materials for application in tunnel liners. The use of expansive cement, special fiber geometries, fiber orientation by vibration and postcracking behavior in compression as related to tunnels are briefly discussed. A Catalog of Standard Mixes for tunnel liner concretes in introduced. Strength, handling time and elastic properties are reported for pumpable mix designs with 3/8-in. (10-mm) maximum-sized aggregate with regulated-set cement and 0.9, 1.2 and 1.5 volume percent steel fiber reinforcement. Durability studies show that low void volume, pumpable mix designs are less permeable than mix designs proportioned by conventional methods. Sulfate resistance studies indicate that the quick-setting cement concrete studied to date deteriorates sooner than type 1 cement concrete in a particular sulfate environment. Regulated-set cement concrete heated to 660 F (350 C) retain 30 to 40 percent of their original strength after cooling. Available research on corrosion of fiber reinforced concrete is reported and a research program is suggested.
- This study was sponsored by FRA.
University of Illinois, Urbana-ChampaignDepartment of Civil and Environmental Engineering
205 North Mathews Avenue
Urbana, IL USA 61801-2352
Washington, DC USA 20590
- Halvorsen, G T
- Keske, W G
- Stout, J A
- Kesler, C E
- Publication Date: 1975-8
- Features: Figures; References; Tables;
- Pagination: 93 p.
- TRT Terms: Concrete; Fiber reinforced concrete; Tunnel lining; Tunneling
- Subject Areas: Bridges and other structures;
- Accession Number: 00127843
- Record Type: Publication
- Source Agency: Federal Railroad Administration
- Report/Paper Numbers: FRA OR&D 75-87
- Contract Numbers: DOT FR 30022
- Files: NTIS, TRIS, USDOT
- Created Date: Dec 29 1976 12:00AM