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Quantitative measurement of pavement structures using radarNormal access

Authors: J. Les Davis, James R. Rossiter, Darel E. and Cece B. Dawley
Event name: Fifth International Conferention on Ground Penetrating Radar
Session: Pavement and Non-Destructive Testing (NDT)
Publication date: 12 June 1994
Language: English
Info: Extended abstract, PDF ( 1.05Mb )
Price: € 20

Summary:
Enhancements have been made to ground penetrating radar (GPR) technology to offer pavement engineers quantitative, non-destructive thiclrness measurements of multiple layers in pavement structures. The enhancements include a self-calibrating capability at every measurement location, signal penetration to a depth of 2 metres, resolution of layers as thin as 50 mm, and semi-automated processing and interpretation software. More than 125 thiclrness comparisons, made in Canada, the United States and Finland over a variety of pavement structures, gave GPR measurements of asphalt thiclrness accurate to within +5% of thiclmess measurements obtained by coring.


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