Comparison of Two Pavement Rehabilitation Strategies
Publication: Journal of Transportation Engineering
Volume 127, Issue 1
Abstract
The main objective of the most recent Mobile Load Simulator (MLS) test program was to conduct a comparative study of two rehabilitation processes, Rehabs A and B, constructed on the south- and northbound lanes of US281 near Jacksboro, Tex., in 1995 and 1996, respectively. The underlying pavements have composite asphalt layers with the first construction done in 1957. Performance was evaluated in terms of surface rutting, loss of stiffness in pavement layers, and permanent deformation in the layers. Tools used during the study included an on-site weather station, nondestructive testing equipment (FWD, SPA, PSPA, SASW), and in situ instrumentation (MDD). The findings of this study provided conclusive results on the relative performance of the two rehab strategies. Rehab A performed well with its sound underlying structure. The Dallas District has elected to use this recycling process based, in part, on the results of the MLS tests in Jacksboro. The study serves as an example of how the MLS program has yielded a variety of products and increased pavement engineering knowledge.
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Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 127 • Issue 1 • February 2001
Pages: 47 - 58
History
Received: Jan 21, 2000
Published online: Feb 1, 2001
Published in print: Feb 2001
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