Caterpillar developed MDP (Machine Drive Power) technology to fill this gap. Rather than an accelerometer and vibratory drum, it uses the principle of rolling resistance to provide indications of soil stiffness. This allows it to perform more reliably on cohesive and granular soils with less variability than accelerometer systems. It also means that the technology can be used on both vibratory and static drum compactors, which are often used on larger sites. While the technology is quite useful on its own, it is even better as a complementary technology to the existing accelerometer-based systems. Contractors who use vibratory soil compactors equipped with MDP and accelerometer-based measurement systems enjoy the widest application range, able to ensure uniform, high quality compaction on nearly any soil type.
Fact Sheet ID Number
Construction Equipment & Methods
Intelligent Compaction, Soil compaction, IC techonology, MDP
Date of this Version
Team, Purdue ECT, "MDP (MACHINE DRIVE POWER) INTELLIGENT COMPACTION TECHNOLOGY" (2018). ECT Fact Sheets. Paper 235.
Fact Sheet Type
Civil Engineering Commons, Construction Engineering and Management Commons, Engineering Education Commons, Engineering Science and Materials Commons, Environmental Engineering Commons, Geotechnical Engineering Commons, Hydraulic Engineering Commons, Other Civil and Environmental Engineering Commons, Transportation Engineering Commons