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

  • Sons of the soil
    February 20, 2012
    New regulations and technology are driving change in the soil compaction sector - Mike Woof reports. The impact of the Tier 4 Interim/Stage IIIB emissions regulations has been hard on some machine sectors in particular. Sloping engine covers have been introduced in several equipment categories as a way of improving visibility for operators, including soil compaction machines. At the same time, new machine guidance technologies have been developed and introduced to the soil compaction market, boosting produc
  • Advanced soil compaction technology coming to market
    March 17, 2016
    Several major manufacturers are introducing new technology for the soil compaction market - Mike Woof writes With the bauma 2016 exhibition drawing near, several major manufacturers are looking to expand their respective ranges of soil compactors, as well as to introduce innovative new technologies to the sector. Ammann is offering new models in the shape of its ARS 200 and ARS 220, both of which are Tier 4 Final/Stage IV compliant. These 20tonne and 22tonne class machines feature newly designed cab
  • Paving a new racing circuit
    February 2, 2022
    The use of reduced temperature asphalt in a road construction project in Germany has helped to lower emissions
  • Manufacturers have developed key innovations in recycling machines
    March 4, 2015
    Manufacturers are making advances in stabiliser/reclaimers and milling machines - Mike Woof reports. The market for milling equipment is a competitive one, with a range of companies from around the globe now offering machines for this segment: BOMAG, Caterpillar, Dynapac, Roadtec, Volvo CE and Wirtgen. In recent years a number of Chinese firms have entered this segment and determining the number of machines these companies manufacture is difficult, although most of their units are sold in China. But interna