Materials

US firm Asphalt Drum Mixers is widening its range of stationary and self-erect asphalt storage silos. These units are designed to be versatile and can be used with the firm’s own asphalt plants as well as those from competitors. The firm says that the design of its stationary and self-erect silos allows them to be used in various asphalt plant configurations. The company also offers an array of capacity options to accommodate the output of any operation. The capacity of ADM’s self-erect silos ranges

Innovations in asphalt plant technology will help boost the use of recycled asphalt. Mike Woof writes. An Ammann asphalt plant located in Australia has been successful in using a high percentage of recycled feed materials. The Australian producer Downer recently created and laid an asphalt mix consisting of 99% recycled materials, including feed from somewhat unusual sources. The feed included toner from printer cartridges, tyres and glass and this is thought to be the first time a mix has been produced usi

Boosting quarrying efficiency by improving drilling and blasting operations. Drilling and blasting operations are crucial for quarry efficiency and Sandvik recently held a Russian Quarry seminar focussing on this in a bid to boost effectiveness for a number of key clients. Sandvik Construction Russia worked with official distributor Quarry-Service to run the Quarry Seminar, this year located in Yekaterinburg. The event concentrated on drilling and blasting and featured the expertise and knowledge of Arne L

Concrete production technology is advancing as new systems come to market – Mike Woof reports The efficient production of high-quality concrete is crucial to many construction projects. Whether high-output plants are being used for large bridge or tunnel projects, or smaller mobile units are being used to supply specific operations such as central reservation barrier installation, the quality of the product is vital. Production technology has improved across the board due to the introduction of new systems.

A quarry in the US has managed to boost production by around 30%, thanks to the acquisition of new equipment. Replacing the old crusher at the Lafarge Pitt River Quarry has made a massive increase in production capacity, helped by improvements to the existing crushing circuit. ELRUS Aggregate Systems provided advice on optimizing throughput, with the facility further improved with the addition of a new CH660 cone crusher from Sandvik Construction.

The crushing and screening sector has seen a flurry of new model launches in recent months, with a series of new equipment introductions - Mike Woof writes. Crushing and screening systems play a vital role in the overall cost effectiveness of a quarrying operation. Ensuring that a quarry runs efficiently relies heavily on the appropriateness of the entire crushing and screening set-up for the material input, the output grades and the compatibility of each separate unit. Mobility has been a key issue in rece

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

Astec’s headline RAP plant can use up to 65% RAP content As it does for the 50% double barrel system aggregate dryer/drum mixer model, Astec is guaranteeing that its customers will get the increased percentage. The unit runs at 181-360tonnes/hour production (200-400UStons/hour). Astec, based in Chattanooga, Tennessee, manufactures all of their state-of-the-art Hot Mix Asphalt plants in the US. They introduced the first double barrel plant in 1989, according to executive vice president Steven Claude, during