Development and Evaluation of a Portable Device for Measuring Curling and Warping in Concrete Pavements

dc.contributor.author Ceylan, Halil
dc.contributor.author Ceylan, Halil
dc.contributor.department Institute for Transportation
dc.date 2018-02-17T13:43:48.000
dc.date.accessioned 2020-06-30T04:52:27Z
dc.date.available 2020-06-30T04:52:27Z
dc.date.embargo 2016-02-22
dc.date.issued 2016-01-01
dc.description.abstract <p>Portland cement concrete (PCC) pavement undergoes repeated environmental load-related deflection resulting from temperature and moisture variations across pavement depth. This has been recognized as resulting in PCC pavement curling and warping since the mid-1920s. Slab curvature can be further magnified under repeated traffic loads and may ultimately lead to fatigue failures, including top-down and bottom-up transverse, longitudinal, and corner cracking. It is therefore significant to measure the “true” degree of curling and warping in PCC pavements, not only for quality control (QC) and quality assurance (QA) purposes, but also for better understanding of its relationship to long-term pavement performance. Although several approaches and devices—including linear variable differential transducers (LVDTs), digital indicators, and some profilers—have been proposed for measuring curling and warping, their application in the field is subject to cost, inconvenience, and complexity of operation. This research therefore explores developing an economical and simple device for measuring curling and warping in concrete pavements with accuracy comparable to or better than existing methodologies. Technical requirements were identified to establish assessment criteria for development, and field tests were conducted to modify the device to further enhancement. The finalized device is about 12 inches in height and 18 pounds in weight, and its manufacturing cost is just $320. Detailed development procedures and evaluation results for the new curling and warping measuring device are presented and discussed, with a focus on achieving reliable curling and warping measurements in a costeffective manner.</p>
dc.description.comments <p>For more information, please visit the Institute for Transportation at http://www.intrans.iastate.edu/</p>
dc.format.mimetype PDF
dc.identifier archive/lib.dr.iastate.edu/intrans_techtransfer/94/
dc.identifier.articleid 1094
dc.identifier.contextkey 8189055
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath intrans_techtransfer/94
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/45059
dc.language.iso English
dc.source.bitstream archive/lib.dr.iastate.edu/intrans_techtransfer/94/MTC_portable_curling_and_warping_device_t2.pdf|||Sat Jan 15 02:32:31 UTC 2022
dc.subject.disciplines Civil Engineering
dc.subject.keywords Portland cement concrete; Curling; Warpage; Perpetual pavements; Freeze thaw durability; Measurement
dc.title Development and Evaluation of a Portable Device for Measuring Curling and Warping in Concrete Pavements
dc.type article
dc.type.genre report
dspace.entity.type Publication
relation.isAuthorOfPublication 3cb73d77-de43-4880-939a-063f9cc6bdff
relation.isOrgUnitOfPublication 0cffd73a-b46d-4816-85f3-0f6ab7d2beb8
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