Skip to main content

Advanced soil compaction

From Caterpillar comes a new compaction system that is said to boost working efficiency. The innovative machine drive power (MDP) package is said to be an integrated soil compaction measurement technology that has been tested by contractors at several jobsites around the world. Now coming to market, the MDP package is one component of an intelligent compaction (IC) package from the firm. The IC technology includes integrated compaction measurement (with an accelerometer, or Cat’s MDP), a system that pro
March 11, 2014 Read time: 3 mins
Caterpillar’s MDP system is said to offer performance gains for soil compaction
RSSFrom 4018 Caterpillar Paving comes a new compaction system that is said to boost working efficiency. The innovative machine drive power (MDP) package is said to be an integrated soil compaction measurement technology that has been tested by contractors at several jobsites around the world.

Now coming to market, the MDP package is one component of an intelligent compaction (IC) package from the firm. The IC technology includes integrated compaction measurement (with an accelerometer, or CAT’s MDP), a system that provides jobsite position location with GPS and data storage capabilities. The MDP system evaluates the rolling resistance at the drum, which indicates the degree of soil stiffness. The looser the material is, the harder it is for the drum to roll over the pile of material in front of it, providing a measure for soil stiffness and load-bearing strength, and whether compaction is sufficient.

The MDP system is a proprietary technology that has been developed by Caterpillar. The firm says that the system can be used on all soil types, allowing a compactor to act as a proof roller, even when not vibrating. It increases efficiency by reducing the need for multiple passes while also ensuring that compaction is uniform and to the required design specification. This uniformity prevents weak areas from failing. The system is also said to improve productivity as well as uniformity, reducing the number of passes needed from eight, to two or three in some tests.

The testing has been carried out in the US, as well as Germany, France, Sweden and Netherlands and the trials also show that density targets can be achieved in fewer passes. Reducing passes lowers fuel consumption, machine wear and labour costs. In the past contractors have had to rely on method specs, such as requiring eight passes, to ensure the compacted area can bear necessary load. But IC and MDP technology means that the number of passes can be lowered. This boosts quality as unnecessary passes can harm the surface, as well as lowering the time required to carry out a job. According to Caterpillar, IC and MDP measurements are now being considered in other corners, with state and federal transportation officials taking a closer look at this technology.

For more information on companies in this article

Related Content

  • New tests, new technology, new users: why materials testing is a growing market
    February 7, 2017
    A look back at some of the developments this year, and a look ahead to what may come next reveals the increasing use of materials testing. New technology and new ways to process and analyse data will drive change even further - Kristina Smith reports For materials testing equipment manufacturers, constant change is business as usual. New tests emerge, new standards are written and new practices spread around regions and the world. There are also new materials to deal with: bitumen modified with polymers
  • Trimble’s new tools can boost drilling, piling and bucket weighing accuracy
    November 29, 2013
    Trimble is broadening its range of products with the introduction of its new DPS900 Drilling and Piling System and Business Center and the LOADRITE X2350 Payload Management System for excavators. According to the firm, the DPS900 Drilling and Piling system allows contractors to drill precisely at a specified location, to preset levels for depth, orientation and inclination angle. The HCE Drilling and Piling module is said to offer contractors tools to create optimised drilling and piling plans that can help
  • Electric asphalt compaction option
    July 20, 2023
    Several asphalt compactor makers now offer compact machines featuring electric drives
  • Latest GIS and software tools improve operations
    February 24, 2012
    Innovative GIS and software solutions are coming to market from the three key market players - Mike Woof reports Competition is strong in the field for GIS and surveying systems as well as the associated software. The three major players in the sector, Leica Geosystems, Topcon and Trimble, all invest heavily in research and development and continue to roll out new solutions for construction customers that will boost the efficiency of surveying as well as overall project implementation.