Application of Radar Technology on Concrete Water Content Testing
This paper presents researches on the technique for testing water content and moisture field in concrete by GPR. Through the experiments, a discussion has been carried out on the variation of velocity of radar waves and the relative dielectric constants in the concrete with different water content. Comparing the results of air drying and drying experiment, an equation is given to reflect the relation between the water content in the concrete and the radar speed of radar waves in the concrete, also the relative dielectric constants of concrete. Some suggestions are proposed for the actual concrete water content test by using Ground Penetrating Radar (GPR).
Guangfan Li, Yong Huang and Chaohe Chen
J. Zhang et al., "Application of Radar Technology on Concrete Water Content Testing", Advanced Materials Research, Vols. 250-253, pp. 3103-3106, 2011