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Ground-penetrating radar (GPR) is a geophysical method that uses radar pulses to image the subsurface. This nondestructive method uses electromagnetic radiation in the microwave band (UHF / VHF frequencies) of the radio spectrum, and detects the reflected signals from subsurface structures.
GPR is also used for geological testing and finding the composition of sub-soils. 3 that presents the GPR profile recorded on the hot mix asphalt pavement. The depth to the B horizon was identified and compared to GPR readings from the same location.