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Evaluation of Chemical Stabilization and Incorporation into Pavement Design

Gray, Jayson A.
http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1398876431

Abstract Details

2014, Master of Science (MS), Ohio University, Civil Engineering (Engineering and Technology).
This thesis examines stabilized subgrade moduli and AASHTO `93 flexible pavement design procedures by in-situ investigation techniques using the dynamic cone penetrometer (DCP). A total of 19 roadways in Ohio with spot stabilized roadbeds were explored via DCP, along with having additional data gathered by ODOT's falling weight deflectometer (FWD) and coring rig. Data from this field work was then analyzed using equations from AASHTO and the U.S. Army Corps of Engineers to calculate resilient moduli values for stabilized subgrade and aggregate base layers. DCP data was also analyzed to determine a base layer structural coefficient for stabilized roadways for use in the AASHTO '93 pavement design guide. In comparison to unstabilized roadways, subgrades treated with cement and lime yielded strength values of 8 and 5 times stronger than those without stabilization. This study shows that, based upon initial CBR values of roadbed soil, stabilized subgrade and base layer resilient modulus values can be estimated using mathematical models. These stiffness values can then be used alongside AASHTO relationships to determine structural base layer coefficients. Results show that, if constructed correctly, global subgrade stabilization can dramatically increase the support stiffness of the base layer and allow for more durable, thinner pavement design.
Shad Sargand (Advisor)
165 p.
Civil Engineering
dynamic cone penetrometer; stabilization; stiffness; resilient moduli

Recommended Citations

Citations

  • Gray, J. A. (2014). Evaluation of Chemical Stabilization and Incorporation into Pavement Design [Master's thesis, Ohio University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1398876431

    APA Style (7th edition)

  • Gray, Jayson. Evaluation of Chemical Stabilization and Incorporation into Pavement Design . 2014. Ohio University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1398876431.

    MLA Style (8th edition)

  • Gray, Jayson. "Evaluation of Chemical Stabilization and Incorporation into Pavement Design ." Master's thesis, Ohio University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1398876431

    Chicago Manual of Style (17th edition)

ohiou1398876431
503
© 2014, all rights reserved.
This open access ETD is published by Ohio University and OhioLINK.