Materials

Following a trial of Metso Minerals' Nordberg Plant Management System at Hanson Aggregates' Ystrad Meurig Quarry, UK, the software has now been installed on a further six mobile machines at Lithalun Quarry. Metso installed the remote control system on the Lokotrack LT300HP for Hanson last year to allow the company to test the advantages of the wireless communication capabilities. The system has now been extended to the LT110 primary crusher, another LT300HP and its two ST358 and ST620 mobile screens.

Italian customer Marocca Group is using an Indeco HP18000 hydraulic breaker (the heaviest hydraulic breaker on the market at present) for primary demolition at a limestone quarry in Anagni, close to capital Rome. The 40ha quarry produces high grade limestone in 21 different sizes to meet an array of construction needs, and the bespoke fully automated crushing and screening plant is able to process over 500m³/hour of rock. By using the HP18000 in a primary winning application, Marocca Group has also been abl

Ever tightening aggregate specifications for road surfacing materials is driving more quarries to wash their materials. Claire Symes looks at the technology and the implications for the industry Stricter aggregates specifications for both asphalt and concrete surfacing materials and the need to make the best use of all extracted material is driving greater use of washing equipment in the quarrying industry. But the latest washing and recycling technology means that this growth does not have to significantly

A one-eighth scale model of Astec's Six Pack portable asphalt facility and a full-size Double Barrel Green System will be on show at the 2009 Excon in India, when the company will take part with its agent/licensee, TIL of Kolkata, India. Excon is being held in Bangalore from 25-29 November, when the model of the Six Pack will be shown to visitors. The Six Pack facility was introduced in the early 1980s as a truly portable facility available to hot mix asphalt producers, while the Astec Double Barrel Green s

Superior Industries says that its new transport conveyor system can improve efficiency during loading and unloading. This three unit Slide-Pac system allows 73m of conveyor to be carried to site in a single load. The system also features a roll-style slide-off design allowing fast unloading of the top two conveyors from the bottom trailer unit, while the unloading process takes just minutes to complete. The trailer unit can be raised to a 4.3m discharge height, is equipped with air brakes, a fifth wheel hit

German company WEIRO has helped to introduce new microsurfacing technology to Estonia to upgrade its roads Estonia's rapidly growing road network requires modern and cost effective road surface rehabilitation technologies. As a result of technological and economical evaluations of the Estonian road network, it has been stated that repairs and upgrading of the existing network will remain the first priority, especially the repair of ruts, which represent a major problem in Estonia. The aim of a trial run of

One company has produced eight asphalt plants for a major project, and others are introducing new models as Patrick Smith reports Algeria's US$11.2 billion East-West Highway development, the world's largest current highway construction project, forms part of the larger Trans-Maghreb Motorway project, and is scheduled for completion in 2010. It will run for 1,216km, ensuring the link between Annaba in the north-east and Tlemcen in the north-west, passing directly through 24 provinces and linking Algeria to T

An overcrowded Indian flyover was removed in record time using specialist demolition equipment, as Patrick Smith reports Demolition of the landmark Lalbaug flyover south of central Mumbai has been completed and work on a new bigger bridge has started in India's largest city. Although the 38-year-old Sant Dnyaneshwar (Lalbaug flyover) two-lane, one-way traffic artery was serviceable and used by to 15,000 vehicles/hour, there were daily traffic jams and environmental consequences. Despite the complex and dema

Carlos Jofré, technical director of the Spanish Institute of Cement and its Applications (IECA), introduces, on behalf of EUPAVE*, a sustainable technique to rehabilitate fatigued pavements Recycling of pavements is a technique whereby an existing degraded pavement is modified and transformed into a homogeneous structure that can support the traffic requirements. More specifically, it involves reusing the materials from the existing pavement for the construction of a new layer, including the pulverisation o

Petroplus Bitumen has been awarded the sole UK licence for the Low Energy Asphalt (LEA) franchise, and as exclusive distributor will promote how the technology can help to reduce the environmental impact of highways construction and maintenance in the UK. It offers asphalt manufacturers the opportunity to reduce their carbon footprints by achieving up to 50% energy and emission savings, while maintaining the appearance and performance of conventional asphalt. LEA involves the manufacture and laying of aspha