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

  • Improved asphalt compaction
    August 16, 2023
    Several of the major compaction machine manufacturers are introducing new models for the asphalt segment that utilise the latest technology – Mike Woof reports
  • JCB’s new VM117D makes North America debut
    March 11, 2014
    JCB’s stylish new soil compactor - the VM117D – has made its North American market debut at Conexpo 2014. With an 11tonne operating weight and equipped with JCB’s 93kW Tier 4 Interim Ecomax engine, said to deliver a 10% fuel saving, the single-drum VM117D can be used for a wide range of work in infrastructure and housing projects. It has a smooth drum as standard with pad foot drums as an option. “We’ve improved the compaction criteria, including amplitude, frequency, centrifugal force, static linear lo
  • Quality assured with asphalt testing equipment
    March 15, 2012
    Equipment for checking out the various qualities required of asphalt in road construction is becoming more sophisticated
  • Concrete paving a smoother surface using machine control technology
    May 17, 2017
    Innovative technology has been used to deliver a smooth concrete road surface on a busy stretch of highway in Nebraska. Much-needed work on a busy section of Interstate 80 has been carried out in Nebraska to improve the road surface. This is one of the most important highways in the US, providing a link that stretches right across the country between the east and west coasts. This busy highway carries a high percentage of heavy truck traffic as it is a vital transport route. However this constant flow of la