Special Provisions for Intelligent Compaction of Stabilized Soil Subgrades

Roadway pavements play a critical role in the transportation infrastructure of our nation. These pavements are typically constructed on top of stabilized (soil) subgrades and their performance and longevity are influenced by the quality of construction, notably compaction. Lack of adequate tools to determine the quality of compaction during construction is one of the leading causes of early deterioration of pavements. Poor quality not only increases the cost of construction and maintenance of pavements but also makes them susceptible to extreme weather conditions (increased wet-dry and freeze-thaw cycles, hotter summer and colder winter, excessive rainfall, drought). Intelligent Compaction (IC) of soil and asphalt mixes is an innovative approach that has been utilized to achieve uniform, adequate compaction of pavement layers during construction. Commercially available IC products provide machine-specific compaction values that are indirectly related to the compaction quality (stiffness) of the pavement layers. Additional methods must be developed in order to relate these compaction values to standardized tests used to verify pavement quality during construction. The Federal Highway Administration (FHWA) has drafted Generic IC specifications for soils and asphalt pavements to facilitate the early adoption of this technology. These generic specifications are expected to serve as guidance to individual state Departments of Transportation (DOTs) in the development of specifications relevant to the respective states. The lead researchers of this study have developed and demonstrated Intelligent Compaction Analyzer (ICA) technology, where a roller instrumented with ICA could estimate the modulus of the pavement layers during compaction. Further, the ability of ICA to improve the quality of compaction of asphalt layers and stabilized subgrade during construction has also been demonstrated. In this study, the objective will be to develop and validate Oklahoma Department of Transportation "Special Provisions" for the use of IC rollers during compaction of stabilized subgrades.


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    • Status: Active
    • Funding: $675246.00
    • Contract Numbers:


      SPTC 14.2-03

    • Sponsor Organizations:

      Haskell-Lemon Construction

      3800 S.W. 10th
      Oklahoma City, OK  United States  73108

      Volvo Construction Equipment

      312 Volvo Way
      Shippensburg, PA  United States  17257

      Oklahoma Department of Transportation

      200 NE 21st Street
      Oklahoma City, OK  United States  73105
    • Performing Organizations:

      University of Oklahoma, Norman

      School of Civil Engineering and Environmental Science
      202 West Boyd Street, Room 334
      Norman, OK  United States  73019
    • Principal Investigators:

      Barman, Manik

      Zaman, Musharraf

      Commuri, Sesh

    • Start Date: 20141001
    • Expected Completion Date: 0
    • Actual Completion Date: 20160930
    • Source Data: RiP Project 38043

    Subject/Index Terms

    Filing Info

    • Accession Number: 01543448
    • Record Type: Research project
    • Source Agency: Southern Plains Transportation Center
    • Contract Numbers: DTRT13-G-UTC36, SPTC 14.2-03
    • Files: UTC, RiP
    • Created Date: Nov 15 2014 1:00AM