United States Department of Transportation
i
Evaluation of the MIT-Scan-T2 for non-destructive PCC pavement thickness determination.
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2008-07-01
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OCLC Number:838650241
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NTL Classification:NTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and Performance
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Abstract:The MIT-Scan-T2 device is marketed as a non-destructive way to determine pavement thickness on both
HMA and PCC pavements. PCC pavement thickness determination is an important incentivedisincentive
measurement for the Iowa DOT and contractors. The thickness incentive can be as much as
3% of the concrete contact unit price and the disincentive can be as severe as remove and replace.
This study evaluated the potential of the MIT device for PCC pavement thickness quality assurance.
The limited testing indicates the unit is sufficiently repeatable and accurate enough to replace core
drilling as the thickness measurement method. Further study is needed to statistically establish the single
user and multi-user/device precision as well as establish an appropriate sampling protocol and PWL
specification.
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