Features

Day Aggregates offers a novel materials recycling approach - Kristina Smith reports Here's a neat idea: take the muck from utilities trenches, treat it and reuse it, saving between 30-40% on the cost of landfill and backfill. This, in essence, is the theory behind Day Aggregates' EcoFILL 40 material. Confident of a growing market for this type of product, Day has invested over €569,000 (£500,000) in a new plant at its 3.4ha site in south London. "There is great demand for a solution to waste streams which

Increasing material costs mean that the US highway sector is looking to increase the use of recycled asphalt pavement (RAP). At the recent World of Asphalt conference and exhibition in Orlando, Florida, two presentations explained the latest developments.

Contractors now have a wider array of stabilisation tools to choose from, with several new units being announced at the Intermat exhibition in Paris.

New and improved mobile crushing and screening equipment is focused on delivering cost/tonne reductions in aggregate production - Geoff Ashcroft reports. The level of technology being applied to mobile crushing and screening systems continues to advance, which is indicative of manufacturer confidence in this sector as one that continues to offer an economic benefit. An example of how electronic technology can lead to greater productivity can be found with KPI-JCI - the firm has introduced a high resolution

UK firm Hanson hopes to attain key sustainability targets with its new ERA asphalt product. This energy reducing asphalt delivers a 50% reduction in carbon emissions while enhancing durability and improving health and safety for contractors. It can also use up to 50% recycled content, while the asphalt itself is 100% recyclable. The Hanson ERA production process allows a wide range of base, binder and surface course materials to be produced at temperatures of 80 and 95°C, compared with up to 190°C for equiv

New milling machinery at the recent Intermat exhibition will meet demands for customers wanting a range of machines stretching from compact units for road repairs to highway-class equipment for large resurfacing projects

Cesan, the Turkey-based supplier of asphalt plants and related products, says it is following a customer-oriented development strategy and anticipating their needs. "By providing customers with quality, delivery, installation, instruction and after-sale services, we are setting high standards and applying advanced technology developing our business," says Çesan. Looking to the environment, Çesan says it produces and manufactures dust collector systems under licence from B.M.D. GARANT.

In Germany a high production paving operation has been achieved using the largest machine available on the market. This project is all the more notable as the operation has been carried out in a continuous process, without joints. The Vögele SUPER 3000-2 paver was able to advance continuously at a rate of almost 4m/min. The machine was preceded by a bustle of activity, for no fewer than 24 feed lorries were needed to ensure an uninterrupted supply of mix to the paver, which placed an even asphalt surfacing

Two Volvo ABG7820 slope pavers are being used to refurbish a 2,000,000m3 reservoir in Hieflau Styria, Austria. The machines are paving an extra high bitumen content asphalt that is watertight and have been modified to cope with the 34° embankments. The pavers were supplied by the Swiss dealer Robert Aebi and the modifications include tiltadjustable operating platforms to boost operator safety and comfort on the slope. The pavers are being operated by Walo Bertschinger, a Swiss company with a specialist dam

MeadWestvaco (MWV) says that its Evotherm warm mix asphalt technology is now approved by the Colorado Department of Transportation (Colorado DOT) for use in statewide paving projects. The warm mix asphalt system can be used in any traditional hot-mix asphalt application, but with significantly lower temperatures required for paving application. This feature is particularly useful in Colorado's high altitude paving projects and has been tested extensively.