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Ground Penetrating Radar Assessment of Flexible Road Pavement Degradation
Joint Authors
Ranalli, Danilo
Colagrande, Sandro
Tallini, Marco
Source
International Journal of Geophysics
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-05-25
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
GPR investigations were used to study degraded road pavements built in cutting sections.
Road integrity was assessed via quantitative analysis of power curves.
1600 MHz and 600 MHz radar sections were collected in 40 damaged and undamaged road pavement sites.
The collected data were processed as follows: (i) linearisation with regression analysis of power curves; (ii) assessment of absorption angle α′ which is directly proportional to absorption coefficient α (this was obtained by setting the e.m.
propagation velocity to 10 cm/ns); (iii) comparison of absorption coefficients in both damaged and undamaged zones with respect to road pavement degradation.
If the absorption coefficients of damaged and undamaged road sections have nearly the same value, then the likely cause of degradation is the fatigue or the thermal shrinkage; if they are not, then road degradation is due to the different compactness of the soil caused by vehicular traffic load.
In a considerable number of sites, the statistical comparison of damaged and undamaged zones through the absorption coefficient analysis shows that surface observations of road pavements are quite consistent with power curve analyses.
American Psychological Association (APA)
Colagrande, Sandro& Ranalli, Danilo& Tallini, Marco. 2011. Ground Penetrating Radar Assessment of Flexible Road Pavement Degradation. International Journal of Geophysics،Vol. 2011, no. 2011, pp.1-11.
https://search.emarefa.net/detail/BIM-513969
Modern Language Association (MLA)
Colagrande, Sandro…[et al.]. Ground Penetrating Radar Assessment of Flexible Road Pavement Degradation. International Journal of Geophysics No. 2011 (2011), pp.1-11.
https://search.emarefa.net/detail/BIM-513969
American Medical Association (AMA)
Colagrande, Sandro& Ranalli, Danilo& Tallini, Marco. Ground Penetrating Radar Assessment of Flexible Road Pavement Degradation. International Journal of Geophysics. 2011. Vol. 2011, no. 2011, pp.1-11.
https://search.emarefa.net/detail/BIM-513969
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-513969