Development of New Corrosion/Abrasion Guidelines for Selection of Culvert Pipe Materials

Details

• Creators:
  Molinas, Albert ; Mommandi, Amanullah
• Corporate Creators:
  Colorado State University
• Corporate Contributors:
  Colorado Department of Transportation. Office of Applied Research ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  Aluminum Aluminum Pipes Chlorides Concrete Pipes Culverts Data Collection Guidelines Hydrology Literature Reviews Materials Selection Metal Pipe Resistivity Method Service Life Soil Resistivity Soils Steel Pipes Sulfates Surveys

  More +
• Publication/ Report Number:
  CDOT-2009-11
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Colorado
• Edition:
  Final Report
• Corporate Publisher:
  Colorado Department of Transportation. Applied Research & Innovations Branch
• Abstract:
  In this research effort, literature surveys and reviews of the current methodologies employed by various state DOTs were conducted. The literature survey identified the pertinent parameters in estimating the service life of various pipe materials. Following the literature survey, field visits to culvert sites were made to collect data. Selection of culvert sites was jointly made by engineers from Staff Bridge, Staff Hydraulics, and members of the study panel. Field surveying of 21 sites where failed pipe installations were observed was conducted in Colorado along I-70, I-25, and SH 58 to obtain a good cross-section of soil type samples. At these sites, soil and water samples were obtained and soil resistivities were determined using applicable Colorado Procedures, AASHTO test methods, or ASTM test methods. Soil and water samples from these sites were analyzed for sulfate/chloride level concentrations, and pH levels. Relevant culvert inspection data from Staff Bridge inspection programs was obtained and used in the analysis where needed. Data collected from literature searches, the Staff Bridge database, actual field surveys, and other unbiased reliable sources was analyzed. The service life was correlated with various parameters including type of material, pH level, chloride and sulfate level concentrations, specific resistivity, abrasion data (steep pipe slopes, high sediment loads, high flow velocity in pipes, etc.) and other factors that could have influenced premature deterioration or failures. A new service life chart for steel pipes was developed based on the information collected from the field observations and data analysis. Data from Colorado pipe failure cases was used in relating service life of pipes to soil resistivity. Pipe failure criteria were established in accordance with the ongoing culvert evaluation procedure along I-70 and I-25. For the steel pipe failure cases along I70 and I-25, the previously published service life predictors for steel pipes deviated from observations by as much as 10 times. Service life multipliers to account for steel pipe thickness effects had been greatly exaggerated. For aluminum pipes, the research identified chloride and sulfate concentrations as factors that reduced the service life of these pipes dramatically.
• Format:
  PDF
• Funding:
  106.00
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:16a1457e6d7dafa616000469545c0866b38126c9304df1410ee4f59685bea53df6ad13f5eb0911c497d1fd33a1d00fef353ff142f02540d48d0430d41cd03449
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/92822/dot_92822_DS1.pdf
• File Type:
  [PDF - 5.76 MB ]