SPR-4100: Maximum Allowable Deflection by Light Weight Deflectometer and Its Calibration and Verification

INDOT has established deflection criteria for compaction control of chemically modified soils, and aggregates over the modified soils. However, these criteria do not cover Type IC and II subgrades and require construction of a test section. These criteria were derived from one LWD model only. Evaluation of LWDs from various manufacturers is necessary for maintaining a quality control process. This project will develop deflection criteria for constructions in small areas for different LWD models and establish harmonized procedures for LWD calibration and verification.

  • Supplemental Notes:
    • Contract to a Performing Organization has not yet been awarded.


  • English


  • Status: Active
  • Contract Numbers:


  • Sponsor Organizations:

    Purdue University/Indiana Department of Transportation JHRP

    Purdue University
    1284 Civil Engineering Building, Room 4154
    West Lafayette, IN  United States  47907-1284
  • Principal Investigators:

    Li, Shuo

    Jiang, Yi

  • Start Date: 20160601
  • Expected Completion Date: 20180531
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01602505
  • Record Type: Research project
  • Source Agency: Indiana Department of Transportation
  • Contract Numbers: SPR-4100
  • Files: RiP, STATEDOT
  • Created Date: Jun 22 2016 10:22AM