Continuous Compaction Control – Mathematical Models and Parameter Identification

Abstract

Continuous Compaction Control and Intelligent Compaction (CCC/IC) is a vibratory roller-based technologies to measure the levels of compaction during construction. Engineers and practitioners has been using CCC/IC to improve quality control (QC) in highway construction. After 40 years, there is still lack of fundamental understanding on the CCC/IC technologies by the industry. The authors traced back to the basics of CCC/IC with comprehensive theories and practical solutions in this paper. The authors defined the characteristics of compaction problems with a system of dynamics. The authors then presented mathematical models to solve compaction metrics, Intelligent Compaction Measurement Values (ICMV). The presented models include: roller drum-continuous body coupling model, mass-spring-damping model, steel drum dynamics model, and hybrid model. The authors presented a solution of estimating modulus and density by parameter identification. These metrics are the keys for practical acceptance of compaction. This paper is the first of a series of CCC/IC papers that cover all aspects of its theory and implementation.