A STUDY ON THE MEASUREMENT ACCURACY OF MOBILE ASPHALT PAVEMENT DENSITY MEASURING DEVICE

Abstract

 In asphalt pavement construction, it is important to control the density of the asphalt mixture. However, core sampling and commonly used electromagnetic wave density measurement devices are point measurements and cannot control the density of the entire construction area (areal control). In this study, test pavements were constructed using four types of asphalt mixtures. In-situ density measurements were made using a mobile asphalt pavement density measuring device (RDM).As a result, it was clarified that the density profile measured by the RDM can be used to draw density contours, which enables areal control of in-situ density, which was not possible with the conventional method. It was shown that RDM can visualize changes in the degree of compaction during the construction process. The areal density control using RDM is a powerful method for verifying the effectiveness of compaction methods and for improving construction machinery and compaction methods.