Recycling

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

The use of high-pressure water jets to remove old concrete on structures is becoming increasingly popular Hydrodemolition of concrete structures by robotic equipment is becoming an increasingly used method for removing deteriorated concrete with high-pressure water techniques. It offers the selective removal of deteriorated concrete, while retaining sound concrete below the intended level of removal, a process that will not damage rebar or cause micro-cracks in the concrete, as will mechanical methods s

Work is continuing to upgrade Chhatrapati Shivaji International Airport (CSIA), India's largest airport in Mumbai, the country's largest city. The airport is equipped with a cross runway system (primary runway) and (secondary runway), with both intersecting each other at a common point. As part of the overall master plan for the modernisation of CSIA, Mumbai International Airport (MIAL) is completely reconstructing both the runways to create an efficient airside infrastructure, which is the core of an

High micro-milling results are said to be achievable using the new cutter from Roadtec. This product has been developed to meet the growing demand for thinner friction courses, which require proper surface preparation. Delamination of thin courses can occur when surfaces are prepared with conventional milling equipment, according to Roadtec. The firm adds that water can get trapped in the recesses of a conventionally milled surface, leading to premature pavement failure.

Leica Geosystems has launched v3.0 of its Leica PaveSmart 3D system, which is designed specifically for concrete and asphalt paving and milling applications. This upgraded package is now said to support a wider range of paving equipment and applications than before. PaveSmart 3D v3.0 will be available late March 2012 through Leica Geosystems’ direct sales and approved paving solution distribution channels, including GOMACO.

Liebherr claims its three-size LRT 622 trough system recycling plants provide cost-effective and efficient separation and recycling of pre-hardened concrete components from batching plants and truck mixers.

Advanced road recycling capabilities are offered by Wirtgen. Having started as a contractor, Wirtgen’s roots in this side of the business are strong and the company’s development of road recycling systems has become a core competence, originating as an offshoot of its contract work. Wirtgen’s leading position in the milling machine market continues and although an increasing number of rival firms offer machines, the company’s share of this segment remains dominant. With demand for machines having grown in 2

Austrian crushing equipment manufacturer Rockster says that its new R700S combines compact dimensions with high efficiency and throughput.

Metso continues to broaden its crushing equipment range with the addition of the latest C-Series jaw crusher. The C120 is said to offer reliability, crushing efficiency and versatility in both stationary and mobile applications. Described by Metso as safe and easy to use, the C120 is also said to be durable and user-friendly.