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Evaluation of Full-Scale CCP Pavement Performance Using Accelerated Loading Facility

Tu, Wei
http://rave.ohiolink.edu/etdc/view?acc_num=osu1420638991

Abstract Details

2005, Master of Science, Ohio State University, Civil Engineering.
More and more environmental concerns over diminishing landfill space in conjunction with the rising costs of natural resources used in road construction have prompted researchers to investigate the use of Coal Combustion Products (CCPs) as substitute materials in pavement construction. Although it has been shown repeatedly that potential economic and environmental benefits can be achieved through the beneficial use of CCP materials in pavement construction, not much work has been done to evaluate the performance of CCPs in full-scale pavements. The focus of the present study was to evaluate the use of CCP materials in full-scale pavements in terms of pavement response and performance under accelerated loading. Six full-scale pavement sections, designed according to current Ohio Department of Transportation specifications, were constructed at the indoor Ohio Accelerated Pavement Loading Facility using standard construction equipment. The mix designs of the six pavement sections (four CCP and two conventional pavement sections) were determined based on the results of an extensive laboratory program on small-scale samples of CCPs and natural materials. The pavement sections were comprehensively instrumented to measure response, performance and to monitor environmental conditions. Pavement response, performance, and standard Falling Weight Deflectometer (FWD) tests were performed at regular intervals throughout the accelerated loading period. Environmental monitoring tests were also conducted on the surface run-off samples collected from the concrete pavement sections to evaluate the potential leaching of trace element from the two fly ash concrete mixes. It was found that the full-scale CCP pavement sections exhibited similar or better performance than the control sections under the accelerated traffic loading equivalent to 20 years of traffic for typical state routes. Good agreement was obtained between the calculated and measured dynamic pavement response except the horizontal strain responses at the bottom of the relatively thin asphalt concrete layer. The subgrade resilient modulus calculated from FWD tests was 1.4 to 2.5 times greater than the laboratory measured values. Reasonable agreement was obtained between the laboratory measured and predicted resilient modulus of both stabilized and untreated subgrade using the OSU model. Laboratory leaching tests showed no significant differences in the leaching of trace elements from the CCP and control concrete mixes. None of the leachate concentrations exceeded the National Primary Drinking Water Regulations limits or OhioEPA’s non-toxic criteria.
William E. Wolfe (Advisor)
Tarunjit S. Butalia (Committee Member)
Diane Foster (Committee Member)
333 p.
Civil Engineering

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Citations

  • Tu, W. (2005). Evaluation of Full-Scale CCP Pavement Performance Using Accelerated Loading Facility [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1420638991

    APA Style (7th edition)

  • Tu, Wei. Evaluation of Full-Scale CCP Pavement Performance Using Accelerated Loading Facility. 2005. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1420638991.

    MLA Style (8th edition)

  • Tu, Wei. "Evaluation of Full-Scale CCP Pavement Performance Using Accelerated Loading Facility." Master's thesis, Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=osu1420638991

    Chicago Manual of Style (17th edition)

osu1420638991
252
© 2005, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.