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

  • Innovative compaction advances
    July 23, 2024

    Innovative asphalt compaction machines are now being introduced by several of the major manufacturers, with solutions offering improved working efficiency and performance.

    Three of the most innovative developments for asphalt rollers come from Dynapac, BOMAG and Hamm, although new asphalt compactors are also being introduced by other firms such as Ammann and Caterpillar.

  • Soil compaction innovations abound
    October 26, 2012
    Manufacturers continue to innovate with sophisticated new soil compaction machines - Mike Woof reports This year has seen the introduction of a series of new soil compaction machines, as manufacturers develop their product ranges. Meeting emission legislation requirements in Europe and North America has helped drive firms to install the latest engine designs. Meanwhile machines have also evolved as companies further refine operating features. The global market for compaction machines has been dominated by
  • Compaction control boosts efficiency
    April 13, 2012
    Effective compaction control is one of a series of technical innovations boosting performance efficiency – Mike Woof writes. Maximising compaction efficiency can be a major cost factor on construction projects. Both for soil and asphalt compaction sectors, the risk from leaving an area under or over-compacted is substantial.
  • Advanced asphalt compaction machine deliver quality surfaces
    May 21, 2014
    Manufacturers are introducing new compaction machines to meet the latest market requirements - Mike Woof writes