Skip to main content

Accurate density measurement from HAMM

May 15, 2025 Read time: 1 min
HAMM’s innovative density-measurement system makes compaction more efficient

The innovative Smart Compact Pro system developed by HAMM can measure density in real time as the asphalt compactor is operating. This revolutionary technology can help boost compaction productivity and quality. It ensures that there is none of the over-compaction that leads to increased fuel consumption and time worked. It also ensures that the mat meets required density specifications, boosting quality, without risking potential crushing of the aggregate.

Crucially, this gives the mat density reading in real time. Results can be checked with a Troxler nuclear gauge for conventional working but HAMM believes that this new system will minimise the need for coring in the future, reducing costs for road construction operations. The unit can be calibrated using a Troxler system and is then ready for use.

The system can also be used alongside the firm’s existing mapping tools, boosting the quality of data collection from road construction operations.

The technology is of key importance for delivering efficient, high quality compaction according to Dr Volker Knickel, CEO of the Wirtgen Group, “The holy grail is to measure density.”

For more information on companies in this article

Related Content

  • Surface quality a key trend in asphalt paving
    March 7, 2012
    Improved surface quality and improved machine design are key trends in the asphalt paving sector, Mike Woof reports There is a big difference in asphalt paving techniques in North America and Europe. In North America, the need to construct long stretches of highway quickly resulted in wide pavers offering high throughput capacity, with compaction equipment then being used to achieve the required density of the various courses. In Europe's highway construction projects, distances tend to be shorter and contr
  • Wirtgen Group machines delivering new runway for German airbase
    October 26, 2016
    Machines from the Wirtgen Group are carrying out an important reconstruction job for the surface course at Büchel Air Base. Road machinery from Hamm, Vögele and Wirtgen as well as asphalt plants from Benninghoven have been carrying out the work, delivering a new runway within a tight timeframe. To achieve this, the work had to be planned well in advance, with the contractors organising the logistics and their personnel accordingly.
  • Hamm offers wider oscillation compaction range
    February 23, 2018
    Hamm is now offering a wider range of compaction machines featuring oscillation systems than ever before. These are available in a wide array of asphalt (and soil) compaction size classes, with 30 models offered to suit an array of different site requirements. The firm developed its first compactor with oscillation instead of vibration 35 years ago and machines with this feature now account for 25% of production.
  • Hamm offers wider oscillation compaction range
    April 9, 2018
    Hamm is now offering a wider range of compaction machines featuring oscillation systems than ever before. These are available in a wide array of asphalt (and soil) compaction size classes, with 30 models offered to suit an array of different site requirements. The firm developed its first compactor with oscillation instead of vibration 35 years ago and machines with this feature now account for 25% of production. Oscillation type compaction is particularly well suited to use on bridge decks as the forces