Features

While mobile crushers are designed to work in harsh conditions, it is the customers that really put the equipment through its paces day after day. Nonetheless, Rockster was surprised by the capability of the R1100 one of its German customers proved recently on a recycling project - crushing porcelain and glass. The customer was not only using the 32tonne machine to crush old toilets and glass but it was also performing well at this task.

Construction of a new highway across Morocco is placing high demands for aggregates along the route and Agregat Oued Cherrat is work to supply the project. Government investment in a modern motorway network in Morocco means the country is a hive of activity with around 1000km of route planned for construction in the next five years. The schemes have attracted contractors from around the world but the aggregates for the work are being sourced more locally.

Sweden's Jehander Quarry has just had its licence renewed until 2021 giving the site a longer-term focus. One of Sweden's quarries has been given a new lease of life with a recently renewed permission that will allow it to continue operating for the next decade. Jehander quarry - owned by Heidelberg Cement - has recently gained approval to operate until 2021.

Mobile crushing and screening developing is moving from ever larger capacities to focus on higher efficiencies. Claire Symes reports. Today's largest mobile crushing and screening equipment can offer capacities to rival that of conventional static installations and has driven a step-change in quarry production. But as these larger mobile machines reach the size of being 'less mobile' development is shifting to improving efficiency of tracked and wheeled crushers and screeners.

A new campaign seeks to raise awareness about the importance of carrying out maintenance in a timely and safe manner to reduce the number of people injured or killed. Statistics show that maintenance can be a dangerous task, with about 10% to 15% of all fatal accidents at work occurring while it is being carried out.

Switzerland's aggregates market is highly influenced by environmental pressures and by its location. Lisa Russell reports. It is a well-known fact that Switzerland does not have a wide range of raw material resources suitable for extraction. No lignite, gold or petroleum are mined or produced on Swiss territory. On the other hand, Switzerland is "rich in rocks," said André Renggli, who is president of the Association of the Swiss Aggregate & Concrete Industry (which is known by its German abbreviation FSKB)

Marine sand and gravel processing at Hanson's Frindsbury Wharf has improved with investment in a new plant. Marine won sand and gravel is an important resource in the south east of the UK and redevelopment of an existing plant is set to improve delivery of these materials.

Investment in Metso Minerals' Trellex rubber screen media has helped Hanson overcome blinding in wet weather at its Forestwood quarry. Brian O'Sullivan reports. Wales in the UK is home to a large number of quarries and is renowned for many things - but dry weather is not one of them. This high rainfall causes problems for some quarry operations, especially fine screening of limestone using conventional steel wire mesh.