Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/10429
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dc.contributorStrategic Highway Research Program (U.S.)-
dc.contributorUnited States. Federal Highway Administration-
dc.contributor.authorFreeman, Reed B.-
dc.contributor.authorAlexander, Don R.-
dc.date.accessioned2016-06-20T13:56:42Z-
dc.date.available2016-06-20T13:56:42Z-
dc.date.issued2001-08-
dc.identifier.urihttp://hdl.handle.net/11681/10429-
dc.descriptionTechnical Report-
dc.descriptionAbstract: The Strategic Highway Research Program, managed by the Federal Highway Administration, includes a pavement evaluation component as part of its Long-Term Pavement Performance study. These evaluations include the use of falling-weight deflectometer (FWD) test devices. The purpose of this project was to determine whether the FWD test procedures could be modified to reduce cost, without losing a significant amount of information. Procedural changes could include a decrease in the number of test replicates and/or an increase in the spacing between test stations. Variability between replicates was found to be relatively low; a reduction in replicate drops from four to two would not cause a substantial loss in information. An increase in spacing between tests from 7.6 m (25ft) to 30.5 m (100ft) would result in a substantial loss ofinfonnation. An increase in spacing from 7.6 m (25ft) to 15.2 m (50ft) would be reasonable if test section responses to FWD were to be summarized as expected values and dispersions. If extremes in pavement response (e.g., minimum and/or maximum stiffness) were judged to be the most important results, the spacing between tests should not be increased from 7.6 m (25ft).-
dc.publisherGeotechnical and Structures Laboratory (U.S.)-
dc.publisherEngineer Research and Development Center (U.S.)-
dc.relationhttp://acwc.sdp.sirsi.net/client/en_US/search/asset/1028705-
dc.relation.ispartofseriesERDC/GSL TR ; 01-11.-
dc.rightsApproved for public release; distribution is unlimited.-
dc.sourceThis Digital Resource was created from scans of the Print Resource-
dc.subjectFalling weight deflectometer-
dc.subjectSpatial variability-
dc.subjectNon-destructive testing-
dc.subjectNondestructive testing-
dc.subjectNDT-
dc.subjectTest variability-
dc.subjectPavement performance-
dc.subjectPavements-
dc.subjectPavement performance-
dc.subjectPavement evaluation-
dc.subjectPavement testing-
dc.titleFalling-weight deflectometer study : optimizing the number of replicates and the spacing of test stations-
dc.typeReporten_US
Appears in Collections:Technical Report

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