Structural Retrofit of Corroded Metal Culverts using GFRP SLIP Liner. Phase II

Details

• Creators:
  Taha, Mahmoud Reda ; Murcia, Daniel Heras
• Corporate Creators:
  University of New Mexico
• Corporate Contributors:
  New Mexico. Department of Transportation. Research Bureau ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  Composite Materials Corrosion Corrugated Pipe Culverts Fiber Reinforced Concrete Glass Fibers Metal Culverts Retrofitting
• Publication/ Report Number:
  R919033
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; New Mexico
• Edition:
  Final Report
• Corporate Publisher:
  New Mexico. Department of Transportation
• Abstract:
  Metal culverts have served as a common structural element in highway design since the mid-1950s because of their low initial cost, ease of fabrication, and simple construction method. There has been an epidemic of corrosion of metal culverts for the last decade. Such corrosion results in loss of cross-section and occasionally leads to structural failure of the culvert. Numerous failures have taken place imposing a high cost with the need to rebuild many culverts in addition to significant indirect costs associated with highway closure. Glass fiber reinforced polymers (GFRP) have become a desirable material for structural strengthening and rehabilitation over the past two decades. Prior research supported by TranSET showed that GFRP profile liner can retrofit an existing metal culvert and provide structural capacity for the corroded metal culvert to extend its service for 50-100 years. New Mexico Department of Transportation (NMDOT) allocated a field trial site for experimentation of the technology. A mock road resembling a two-lane rural road with 18-inch backfill above a 25- foot long and 24-inch diameter corroded metal culvert was prepared by NMDOT. Field implementation was executed using 22-inch GFRP pipe slip lined and grouted to the existing corroded corrugated metal culvert. Load testing was performed to ensure the integrity of the retrofitted culvert. This report describes the design process, the field experimentation steps, and the retrofitting process. The report also describes the load testing and the monitoring of the retrofitted metal pipe using the fit-in GFRP profile liner technology.
• Format:
  PDF
• Funding:
  4564-73
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:aec94e0fcb5f743db2e01c33c0ead8aa0953c9b603abc60e5a42ee938843dccc549e3a5795976e7e786210bd8615dc468b65a22e5ee92daeae3434125f84872e
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/87090/dot_87090_DS1.pdf
• File Type:
  [PDF - 17.30 MB ]