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

  • JCB’s new soil compactors are faster and more frugal
    January 6, 2017
    JCB has introduced two new soil compactors; the VM117D and the VM137D with operating weights of 11tonnes and 12.2tonnes respectively. The single-drum vibratory compactors can be used for a wide range of work in infrastructure and housing projects and have a smooth drum as standard with pad foot drums as an option. They are powered by JCB’s 93kW Stage IIIB/Tier 4 Interim Ecomax engines, which meet the emissions target without using a DPF and are said to deliver fuel savings of 16%. Changes to the compaction
  • JCB’s new soil compactors are faster and more frugal
    April 16, 2013
    JCB has introduced two new soil compactors; the VM117D and the VM137D with operating weights of 11tonnes and 12.2tonnes respectively. The single-drum vibratory compactors can be used for a wide range of work in infrastructure and housing projects and have a smooth drum as standard with pad foot drums as an option. They are powered by JCB’s 93kW Stage IIIB/Tier 4 Interim Ecomax engines, which meet the emissions target without using a DPF and are said to deliver fuel savings of 16%. Changes to the compaction
  • Technology makes materials testing quicker and easier
    February 14, 2012
    Sophisticated technology is now being used to make the testing of a wide variety of materials quicker and easier as Patrick Smith reports. Ever since the CE mark became mandatory for asphalt mixes, it also became necessary and important to update the testing equipment and systems used for testing such materials.
  • Advances in earthmoving machines
    May 25, 2016
    New levels of efficiency and sophistication are being seen in the latest earthmoving machines coming to market - Mike Woof writes The earthmoving equipment segment accounts for one of the largest parts of the total market for construction machines. All around the world excavators and articulated dumptrucks (ADTs) can be seen operating on construction sites. With a massive array of manufacturers offering these machines, it is no surprise that the segment is hotly contested. In developed markets firms are