Advancing Concrete Pavement Rehabilitation and Strategic Management Through Nondestructive Testing at Toll Stations
In contrast to maintaining asphalt pavements, maintaining healthy and functional concrete pavements is a much greater challenge due to the especially brittle nature of concrete, which may require a more complex rehabilitation plan. Thanks to nondestructive testing, noninvasive on-site inspections ca...
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MDPI AG
2025-05-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/15/10/5304 |
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| author | Konstantinos Gkyrtis Christina Plati Andreas Loizos |
| author_facet | Konstantinos Gkyrtis Christina Plati Andreas Loizos |
| author_sort | Konstantinos Gkyrtis |
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| description | In contrast to maintaining asphalt pavements, maintaining healthy and functional concrete pavements is a much greater challenge due to the especially brittle nature of concrete, which may require a more complex rehabilitation plan. Thanks to nondestructive testing, noninvasive on-site inspections can be carried out to assess a pavement’s condition, with the falling weight deflectometer (FWD) being the most representative example. In this study, five toll stations with concrete pavements in operation, for which no long-term monitoring protocols existed yet, were evaluated mainly with deflectometric tests using the FWD. The objective of the study was to propose a methodological framework to support responsible decision-makers in the strategic management of concrete pavements at toll stations. To meet this aim, a test campaign was organized to evaluate the pavement condition of individual slabs or lanes, assess the durability of the slabs, and determine the efficiency of load transfer across joints and cracks. As a key finding, pavement slab deflections were found to exhibit a considerable range; in particular, a range of 50–1450 μm for the maximum deflection of the FWD was observed. This finding stimulated a distribution fitting analysis to estimate characteristic values and thresholds for common deflection indicators that were validated on the basis of pavement design input data. Finally, the study proceeded with the development of a conceptual approach proposing evaluation criteria for individual slab assessment and the condition mapping of in-service concrete pavements. |
| format | Article |
| id | doaj-art-ba80ecb8874a4e9caaa8118a7d248d71 |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
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| series | Applied Sciences |
| spelling | doaj-art-ba80ecb8874a4e9caaa8118a7d248d712025-08-20T03:47:53ZengMDPI AGApplied Sciences2076-34172025-05-011510530410.3390/app15105304Advancing Concrete Pavement Rehabilitation and Strategic Management Through Nondestructive Testing at Toll StationsKonstantinos Gkyrtis0Christina Plati1Andreas Loizos2Department of Civil Engineering, Democritus University of Thrace (DUTh), 67100 Xanthi, GreeceLaboratory of Pavement Engineering, National Technical University of Athens (NTUA), 15772 Athens, GreeceLaboratory of Pavement Engineering, National Technical University of Athens (NTUA), 15772 Athens, GreeceIn contrast to maintaining asphalt pavements, maintaining healthy and functional concrete pavements is a much greater challenge due to the especially brittle nature of concrete, which may require a more complex rehabilitation plan. Thanks to nondestructive testing, noninvasive on-site inspections can be carried out to assess a pavement’s condition, with the falling weight deflectometer (FWD) being the most representative example. In this study, five toll stations with concrete pavements in operation, for which no long-term monitoring protocols existed yet, were evaluated mainly with deflectometric tests using the FWD. The objective of the study was to propose a methodological framework to support responsible decision-makers in the strategic management of concrete pavements at toll stations. To meet this aim, a test campaign was organized to evaluate the pavement condition of individual slabs or lanes, assess the durability of the slabs, and determine the efficiency of load transfer across joints and cracks. As a key finding, pavement slab deflections were found to exhibit a considerable range; in particular, a range of 50–1450 μm for the maximum deflection of the FWD was observed. This finding stimulated a distribution fitting analysis to estimate characteristic values and thresholds for common deflection indicators that were validated on the basis of pavement design input data. Finally, the study proceeded with the development of a conceptual approach proposing evaluation criteria for individual slab assessment and the condition mapping of in-service concrete pavements.https://www.mdpi.com/2076-3417/15/10/5304concrete pavementsFWD testingdeflectometric indicatorsload transfer efficiencydurabilitycondition ranking |
| spellingShingle | Konstantinos Gkyrtis Christina Plati Andreas Loizos Advancing Concrete Pavement Rehabilitation and Strategic Management Through Nondestructive Testing at Toll Stations Applied Sciences concrete pavements FWD testing deflectometric indicators load transfer efficiency durability condition ranking |
| title | Advancing Concrete Pavement Rehabilitation and Strategic Management Through Nondestructive Testing at Toll Stations |
| title_full | Advancing Concrete Pavement Rehabilitation and Strategic Management Through Nondestructive Testing at Toll Stations |
| title_fullStr | Advancing Concrete Pavement Rehabilitation and Strategic Management Through Nondestructive Testing at Toll Stations |
| title_full_unstemmed | Advancing Concrete Pavement Rehabilitation and Strategic Management Through Nondestructive Testing at Toll Stations |
| title_short | Advancing Concrete Pavement Rehabilitation and Strategic Management Through Nondestructive Testing at Toll Stations |
| title_sort | advancing concrete pavement rehabilitation and strategic management through nondestructive testing at toll stations |
| topic | concrete pavements FWD testing deflectometric indicators load transfer efficiency durability condition ranking |
| url | https://www.mdpi.com/2076-3417/15/10/5304 |
| work_keys_str_mv | AT konstantinosgkyrtis advancingconcretepavementrehabilitationandstrategicmanagementthroughnondestructivetestingattollstations AT christinaplati advancingconcretepavementrehabilitationandstrategicmanagementthroughnondestructivetestingattollstations AT andreasloizos advancingconcretepavementrehabilitationandstrategicmanagementthroughnondestructivetestingattollstations |