Many years after construction, the old dam in Holmfirth, United Kingdom, must be renewed. The old structure was getting weak, and new regulations requested a redesign and the reinforcement of the dam. Approximately 23 new layers, 30 cm thick, of new materi …

The use of high performant rollers for the compaction of HMA is essential. Besides the static linear load on the drum, the exciter frequency, amplitude and dynamic force are the main characteristics that influence the compaction progress and achieved densi …

Different dynamic compaction methods in comparison. Circular exciter – directed exciter - and oscillation systems Basically, four different compaction systems for asphalt are offered to the market: Static Rollers with steel drums or rubber tiered whe …

With the MOBA Compaction Assistant we are able to collect a lot of data, like stiffness values frequencies, amplitudes, temperatures, number of passes and positions. Furthermore roller specifications and site information are available. How to present all t …

The Challenge Wherever construction takes place in the world, rollers are the most common machines on any site. Earthmoving stands at the beginning of the construction. Here, Single Drum Soil compactors are used to compact the material filled by dozers, …

The compaction of road materials such as soils, aggregate bases or asphalt paving materials with vibratory rollers is an essential element in the construction of highways, airports, buildings, sewers, and bridges. On road and building construction sites, m …

Here I found a very good presentation about intelligent compaction and ist benefits. FHWA/TPF Intelligent Compaction and Recent Findings

Part of the road running along- side the Rhine River, was in need of re-construction. As a result of increased traffic and axle loads, crocodile cracks and deep lane grooves became clearly evident. Originally, it was thought that only the wearing course wa …