Automated Plate Load Testing on Concrete Pavement Overlays with Geotextile and Asphalt Interlayers: Poweshiek County Road V-18

Project Details
STATE

IA

SOURCE

CP Tech Center

START DATE

04/01/16

END DATE

04/30/18

RESEARCHERS

David J. White and Peter Taylor

SPONSORS

Iowa DOT

KEYWORDS

Asphalt concrete, Concrete overlays, Geotextiles, Materials tests, Pavement interlayers

LINKS

Products

Project description

Automated plate load testing (APLT) was conducted on County Road V-18 in Poweshiek County, Iowa, to assess and compare performance of unbonded concrete overlay sections constructed in 2008–2009. The unbonded overlays on County Road V-18 were constructed in selected areas using an asphalt concrete (AC) interlayer or a non-woven geotextile fabric interlayer. Wiegand et al. (2010) documented the construction techniques and materials used to build the test sections (project TR-600). The results of the study documented here provide a new assessment of the in situ deformation and composite modulus of the test sections.
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