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Effect of Moisture Content on Calculated Dielectric Properties of Asphalt Concrete Pavements from Ground-Penetrating Radar Measurements
| Content Provider | MDPI |
|---|---|
| Author | Cao, Qingqing Al-Qadi, Imad L. |
| Copyright Year | 2021 |
| Description | Moisture presence in asphalt concrete (AC) pavement is a major cause of damage to the pavement. In recent decades, an increasing need exists for non-destructive detection and monitoring of the moisture content in AC pavement. This paper provides a simulated approach to quantify the effect of internal moisture content on AC pavement dielectric properties using ground-penetrating radar (GPR). A heterogeneous numerical model was developed to simulate AC pavement with internal moisture at various saturation levels. The numerical model was validated using GPR surveys on cold-in-place recycling treated pavements. An empirical formula was derived from the simulation to correlate the dielectric constant with the moisture content for non-dry AC pavement. The results validated the proposed model and, hence, demonstrated the ability of GPR to monitor moisture variation in AC pavements. |
| Starting Page | 34 |
| e-ISSN | 20724292 |
| DOI | 10.3390/rs14010034 |
| Journal | Remote Sensing |
| Issue Number | 1 |
| Volume Number | 14 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-12-22 |
| Access Restriction | Open |
| Subject Keyword | Remote Sensing Transportation Science and Technology Ground-penetrating Radar Moisture Content Finite-different Time-domain Simulation Non-destructive Testing Asphalt Concrete Pavement |
| Content Type | Text |
| Resource Type | Article |
