METAL PIPE COUPLING STUDY
The Louisiana Department of Highways has been using the conventional test method AASHTO Designation: M 198 for the hydrostatic tests on corrugated metal culvert pipe. The test method for use on metal culvert pipe needed review and evaluation for possible changes or revisions, and a standard design was needed for the coupling systems. The specific aims of the study were: (1) to establish a standard design for the watertight coupling systems for the various kinds of metal culvert pipe and to evaluate the test method for determining watertight systems, (2) to evaluate seam connections of different type metal pipe, and (3) to evaluate some of the various coupling systems commercially available. This was accomplished by: (1) searching the literature, (2) running a series of hydrostatic tests on each type of metal pipe using varius sizes and systems of gasket materials, (3) reviewing policy decisions on pipe usage, and (4) reviewing new products evaluation. Conclusions reached on the study, historical data and policy decisions on pipe usage, enabled the Department to revise our Standard Specifications, to adopt new policies on pipe usage, to consider further review of the test procedure for the determination of watertight systems and their usage, and to partially implement some of these changes.
- Record URL:
- Study conducted in cooperation with FHWA and DOT.
Louisiana Department of HighwaysP.O. Box 44245, Capitol Station
Baton Rouge, LA United States 70804
- Law, S M
- Publication Date: 1975-11
- Pagination: 71 p.
- TRT Terms: Corrugated metal culverts; Corrugated pipe; Couplers; Design standards; Hydrostatics; Metal pipe; Permeability; Policy; Test procedures
- Subject Areas: Geotechnology; Highways; Hydraulics and Hydrology; Materials; Policy;
- Accession Number: 00139785
- Record Type: Publication
- Source Agency: Federal Highway Administration
- Report/Paper Numbers: FHWA-LA-95 Final Rpt.
- Contract Numbers: HPR #73-2G(B)
- Files: TRIS, USDOT, STATEDOT
- Created Date: Dec 15 1976 12:00AM