Advantage 4: Low oscillation loads
Oscillation drums do not lift off the sub-base while compacting. In comparison to vibrating drums, with oscillation drums only about 15% of the vibration is directed into the substrate around the roller. This means that oscillation rollers can also be used without problems for dynamic compaction near vibration-sensitive buildings or installations. Because the rollers are also much quieter, they help to protect the environment. Another benefit provided by low-vibration compaction is that it reduces component wear and is also perceptibly less tiring for the roller drivers.
Advantage 5: Material-friendly compaction
With vibration compaction, once a certain level of rigidity has been achieved, there is a risk of destroying the material structure or crushing the particles. This is not the case with oscillation: It ensures that the aggregate particles are redistributed undamaged. In this way, oscillation avoids detrimental particle crushing and over-compaction. In addition, oscillation compaction produces watertight, long-lasting joints without damaging the cold asphalt.
Advantage 6: Larger temperature range
Oscillation widens the temperature range in which compaction is possible because it can be used to compact without damage, even at lower temperatures. For this reason, oscillation is particularly suited to the compaction of thin layers or on fast-cooling surfaces such as on bridges. In addition, this characteristic increases flexibility during the construction process.
Contractors benefit from oscillation
Many contractors are aware of the benefits of dynamic compaction with oscillation and know that with this technology, they can not only work extremely efficiently but also increase the quality of road construction into the bargain. This is the reason why construction companies are increasingly opting to buy rollers with oscillation capability and that today one in five tandem rollers leaving the Tirschenreuth plant sports an oscillation drum.