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- W138481142 abstract "Standard practice for evaluating flexible pavement construction focuses primarily on the compacted relative density of the pavement layer as means for quality assurance. Despite this trend, numerous studies show that mixtures compacted at the same density level may perform differently with respect to durability and mechanical stability. This paper investigates the potential of using the portable seismic pavement analyzer (PSPA) as quality assurance method during construction. The PSPA is used to estimate the seismic modulus of the pavement structure based on response to seismic excitation. The method repeatability was found to be acceptable; however, temperature must be factored for field quality assurance. The results show that seismic modulus testing is capable of identifying problematic areas within the pavement; specifically along the centerline longitudinal joint. The PSPA measurements were successfully correlated to the asphalt mixture voids in mineral aggregate (VMA) as determined in the laboratory, while the relative density showed no correlation with any of the mixture volumetric properties. Preliminary guidelines are proposed for using the PSPA as a tool for quality assurance to ensure that the final product meets expected service loads." @default.
- W138481142 created "2016-06-24" @default.
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- W138481142 date "2013-01-01" @default.
- W138481142 modified "2023-09-27" @default.
- W138481142 title "Portable Seismic Pavement Analyzer for Paving Quality Assurance" @default.
- W138481142 hasPublicationYear "2013" @default.
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