Evaluating Corrosivity of Geomaterials in MSE walls: determination of Resistivity from Pore Water Chemistry
It is critically important to predict the corrosivity of fill materials in mechanically-stabilized earth (MSE) walls which can cause corrosion of steel reinforcement and lead to structural failure. A common way of assessing the corrosivity of fill materials is to analyze readily soluble constituents such as chloride and sulfate. In this study, fill materials with a wide range of geological type and gradation were collected throughout the US and Canada and analyzed with several methods to extract soil leachate. An empirical model was developed to estimate the resistivity of soil leachates as a function of chloride, sulfate, and alkalinity concentrations, and this calculation can be used to corroborate laboratory testing results.
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Supplemental Notes:
- This document was sponsored by the U.S. Department of Transportation, University Transportation Centers Program.
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Corporate Authors:
University of Texas, El Paso
Department of Civil Engineering
El Paso, TX United States 79968-0516Rutgers University, Piscataway
Center for Advanced Infrastructure and Transportation, 100 Brett Road
Piscataway, NJ United States 08854-8058Office of the Assistant Secretary for Research and Technology
University Transportation Centers Program
Department of Transportation
Washington, DC United States 20590 -
Authors:
- Walker, W Shane
- Ghadimi, Shahrouz J
- Arciniega, Jose Luis
- Nazarian, Soheil
- Publication Date: 2019-7
Language
- English
Media Info
- Media Type: Digital/other
- Edition: Final Report
- Features: Figures; References; Tables;
- Pagination: 14p
Subject/Index Terms
- TRT Terms: Corrosion; Corrosive materials; Fills; Leachate; Mechanically stabilized earth; Pore water; Resistance (Electricity); Soils
- Uncontrolled Terms: Geomaterials
- Geographic Terms: Canada; United States
- Subject Areas: Geotechnology; Highways; Maintenance and Preservation; Materials;
Filing Info
- Accession Number: 01714453
- Record Type: Publication
- Report/Paper Numbers: CAIT-UTC-NC38
- Contract Numbers: DTRT13-G-UTC28
- Files: UTC, NTL, TRIS, ATRI, USDOT
- Created Date: Aug 22 2019 4:41PM