The problem of monitoring the compaction of road construction materials in structural construction is currently relevant. The methods of quality control of compaction of road construction materials currently used in Russia during quality inspection do not provide a way to estimate more than 0.1% of the total compaction area. Today there is a wide variety of continuous compaction monitoring systems for vibratory rollers. Such systems allow operators of vibratory rollers to monitor the condition of compacted material in real time, which significantly improves the quality of road construction. The operation of most monitoring systems is based on the compaction index obtained from the analysis of the acceleration spectrum of the vibratory drum. When a new soil compaction monitoring system is only starting to be developed, it is necessary to develop and test in the field a new, more perfect compaction indicator, and to compare it with the existing compaction values. A field research has provided us with signals from vibration acceleration sensors placed on the frame of a vibratory drum and acceleration spectra of the vibratory drum using ZETLAB software made by ETMS. To calculate the proposed indicator, the received data was processed in STATISTICA v.10. The final correlation analysis was performed using the CORREL function found in MS Excel 365 and its financial and scientific data analysis tool. As a result of this correlation analysis, it was found that the proposed Compaction Value has the highest coefficient of linear correlation with the value of the dynamic deformation module Evd in all areas of the field research. In this regard, it can be concluded that using the proposed Compaction Value is reasonable in the development of a new continuous monitoring system for compaction of road-building materials with vibratory rollers.
