Implementation of technology for rapid field detection of sulfate and organic content in soils : technical report.

Details

• Creators:
  Shon, Chang-Seon ; Sebesta, Stephen ; Scullion, Tom
• Corporate Creators:
  Texas Transportation Institute
• Corporate Contributors:
  Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Field tests
  • Detection and identification
  • Detection and identification systems
  • Identification systems
  • Detectors
  • Electrical conductivity
  • Color
  • Soils
  • Sulfates
  • Veris 3150 unit
  More +
• Publication/ Report Number:
  FHWA/TX-12/5-6362-01-1
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas
• Edition:
  Technical report; Feb. 2011-Dec. 2011.
• Corporate Publisher:
  Texas Transportation Institute
• Abstract:
  The protocol using the Veris 3150 for determination of sulfate-rich soils has been implemented to two fullscale ; projects in Dallas and Paris Districts. The determination of organic-rich soil was not implemented in this project ; due to the unavailability of proper equipment. Researchers collected electrical conductivity (EC) data from two Veris ; 3150 units equipped at both TxDOT and TTI, simultaneously. Soil samples were collected on the basis of the ; constructed EC color map. The data collected from these projects were analyzed to identify potential relationships ; between Veris EC measurements and sulfate contents for different types of soil. ; Statistical modeling results indicate that Veris EC is a linear function of the natural log of the sulfate content, ; directly if other soil parameters such as moisture content, organic matter content, and clay content remain constant. ; Higher EC of soil responds to higher sulfate content of soil. It is imperative that soil samples be collected based on the ; EC map generated from the Veris 3150 data. Therefore, it is recommended that the Veris EC be used as a viable ; screening tool to identify areas where high sulfate-bearing soils may exist. ; A color-coded map indicates that the area that has the greater EC shows the higher sulfate content. The ; comparison study of TxDOT and TTI Veris units shows that the units produce comparable sets of data although the ; actual EC values may not be exactly matched.
  More +
• Format:
  PDF
• Funding:
  Project 5-6362-01
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/24512/dot_24512_DS1.pdf
• File Type:
  [PDF - 3.83 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:b480c54588edcbff0ce7a35e29dfa2482154bbc7fe35422ae7cf490c404ac255