Affiliation:
1. College of Architectural Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China
2. College of Water Conservancy Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
Abstract
Investigation of the dielectric properties of asphalt pavement materials is critical for the application of the ground penetrating radar non-destructive testing techniques. This study focused on the effect of each part with different particle sizes in mineral aggregates on the bulk dielectric response of asphalt concrete materials. Multiscale experiments were conducted with different mineral aggregate particle mixtures (mastic, mortar, and asphalt concrete materials). By combining the multi-scale test data and micromechanical method, the sensitivity of the mineral’s aggregate size, including the size effect induced by the interface behaviors of the asphalt–mineral aggregate, was analyzed. The results indicate that (i) the dielectric response of asphalt concrete is mainly dominated by its mineral aggregates, and the particle size is one of the main factors affecting the polarization of asphalt–particle mixtures; (ii) the interface effects increase the polarization of the filler and fine aggregates in asphalt; and (iii) the cumulative effect of unit volume of the filler and fine aggregate on the overall dielectric response of the asphalt mixture, i.e., the cumulative weight, shows a natural logarithmic growth.
Funder
National Key Research and Development Program of China
National Natural Science Foundation of China
Henan Science Foundation for Distinguished Young Scholars
Major Scientific and Technological Special Project in Henan Province
Program for Science and Technology Innovation Talents in Universities of Henan Province
Key Research Project of Higher Education in Henan Province
Subject
General Physics and Astronomy
Cited by
1 articles.
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