University of Twente Student Theses
Assessment of the application possibilities for Ground Penetrating Radar as clogging measuring method in porous asphalt pavement roads
Mol, B.J.M. (2021) Assessment of the application possibilities for Ground Penetrating Radar as clogging measuring method in porous asphalt pavement roads.
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| Abstract: | Within the asphalt construction sector the phenomenon of clogging is observed in Dutch porous asphalt pavement roads (ZOAB). During clogging the pavement fills up the relatively high percentage of voids these roads are designed to have. Clogging is especially observed on emergency lanes since tire suction appears on regular traffic lanes. A clogged pavement performs less on water permeability. Current methods to measure clogging are mostly destructive (drill cores), time consuming and questionably reliable (Becker Test). Currently, asphalt pavements are periodically cleaned while the current state of a pavement with respect to clogging is hardly known. To strive for more efficient road maintenance, a competent and non-destructive measuring method is sought to estimate clogging. De Wegenscanners are a Dutch road scanning company that use GPR to perform analyses on pavements to achieve improved road management for their clients. This research first investigates the required elements for GPR as new clogging measuring method. It describes the necessary steps to turn GPR data into clogging estimations. Then an internal validating case study is performed on historic ZOAB data from De Wegenscanners. This case study clearly indicates the expected type of clogging especially on the emergency lane. Finally, multiple external validating methods are prescribed to further establish GPR as newly accepted clogging measuring method. |
| Item Type: | Essay (Bachelor) |
| Faculty: | ET: Engineering Technology |
| Programme: | Civil Engineering BSc (56952) |
| Link to this item: | https://purl.utwente.nl/essays/88528 |
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