Feasibility Study on Using 3D Radar to Minimize the Number of Drill Core Sampling to Evaluate the Compactness Quality of Asphalt Pavement
This study attempts to explore the feasibility of using 3D radar to minimize or replace drill core sampling for evaluating the compactness quality of asphalt pavement through the comparison and selection of the Dielectric Constant and Air Voids Relational Models,indoor and outdoor tests,and test road verification. The research results show that the Pearce model characterized by its simplicity,good fitting with both indoor and outdoor data,clear physical meaning,and wide adaptability range of dielectric constant,is suitable for predicting the porosity of asphalt mixtures. Compared to the detection results of drill core sampling,the errors in porosity and compactness obtained from 3D radar detection are minimal,and do not change the overall judgment conclusion of the compactness quality of the detection section. Therefore,it is feasible to use 3D radar to minimize or replace drill core sampling for evaluating the compactness quality of asphalt pavement.
万方数据
维普
