Asphalt milling, paving & compaction

The new MOBA-MATIC II levelling control system is said to offer an array of innovative features that improve ease of use and safety. The control handset now comes with a large screen so that the most important value is always within view of the operator. It also has a backlit keypad making working in low, ambient light far easier. Most importantly, however, is that with a single control panel, both sides of the screed can now be controlled from one screen making it both substantially easier and safer fo

MOBA is introducing a sophisticated compaction control package. The innovative MCA-500 machine control system is designed for use with compactors and can be used in both earthmoving and road construction applications. The system allows the compactor operator to monitor progress in real-time on the display. The driver can see key information during the compaction process, such as the intelligent compaction value (ICV), vibration frequency and amplitude. This ensures that over- and under-compaction can be

Volvo said that its new DD25B double drum compactor offers a combination of high productivity and performance. Power for the DD25 double drum comes from a Tier 4 Final/Stage IV-compliant engine, and it achieves outstanding results with maximum machine uptime. The three-cylinder diesel is said to be durable and fuel-efficient and meets the Tier 4 Final/Stage IV emissions regulations without requiring an after-treatment system. Delivering 18.6kW, the Volvo D1.7A engine is said to be well-matched to the co

In Iowa, the Simex CT 2.8 vibrating compactor wheel is playing an important role in building a subsurface, road drainage system The topsoil of Iowa is famous for its fertility, a characteristic that explains the high agricultural productivity of this state located in the American Midwest. However, the composition of the soil lends itself poorly to the dispersal of rainwater, as its fine granulometry and low level of permeability (12.7cm/hour according to the American Association of State Highway and Tran

Recycling of road surfaces has resulted in restoration and full renovation of a key California route. State Highway 137 in California’s San Joaquin Valley had suffered badly from the effects of weather, traffic and general ageing and the California Department of Transportation recognised the need to improve this route. A 15km section of State Highway 137 west of Tulare, which lies about midway between Fresno and Bakersfield, in the heart of the Central Valley. The road runs through the vineyards and almo

Rebuilding of one of the oldest motorways in Germany is testing out the possibilities for public-private project road construction reports Adrian Greeman A freshly renovated section of the A8 Autobahn in southern Germany will be watched with some interest this summer as traffic begins driving along its rebuilt carriageway and additional third lanes. That is not because of any special road features, other than a distinctive reddish colour to its concrete surface, but because it is a first fullscale public

A historic route in the US state of Arkansas has benefited from the use of machine control during its upgrade The south-west - north-east US Route 67 in Arkansas has long been a significant transport route. This old road follows the natural break between the Ozark Mountains and the Ouachita Mountains. In the 1920s, funding became available for road paving, and the route was designated US Route 67.

Improving technologies for machine control systems continue to deliver increases in efficiency for contractors - Mike Woof writes Machine control technologies have continued to develop as the specialist suppliers in this fiercely fought sector seek to find a competitive advantage over their rivals. The key players, Leica Geosystems, MOBA, Topcon and Trimble, have all been pushing the boundaries with their latest technologies. Although the systems these firms are introducing are aimed at a number of differen

A series of new rubber tyred asphalt compactors are now coming to market from several key manufacturers - Mike Woof writes Several of the major European compactor manufacturers are introducing new rubber tyred machines to meet demand. Pneumatic tyred rollers are often used for finishing work in road construction, due to the high quality surface they can deliver.