Evaluation ability Ground Penetration Radar (GPR) in Determining Tensile Strength of The Applied Asphalt Layer

One of the influencing factors in failure asphalt layer tensile strength. For that reason validate benchmark for assessing and evaluating the quality of asphalt in road projects. Coring is the usual method for measuring quality of asphalt layer in the implemented road projects. But  the mentioned  method is costly  and    time-consuming  and also show the quality of  asphalt  layer in  a  specific  point . In the   present  article determine  tensile  strength  and  also detection  potential  failure of  the  implemented  asphalt  layer with using the  device    GPR Ground   Penetrating   Radar )   reviewed. In the  research  firstly a  part of  kerman  network  roads selected as  a sample for study  then evaluated  mechanized with  the help device  GPR  done . In  the  following  taken core  samples from locations rand only  and  then experiments determine  percentage  empty space  and  density done  on   them. In comparison results destructive experiments with mechanized scrolling transpire by increase tensile strength in the asphalt layer increase dielectric.so that by reducing the tensile strength less and equal to 870 (kpa) decreases in dielectric constant value from 5 was observed due to nondestructive evaluation . So the using output results radar can be obtained continuous profile from state tensile strength of the project study can be obtained.