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Materials

Rising to the challenge
July 18, 2012
Visualise today's concept of a major commercial traffic corridor in the western United States. A roadway responsible for delivering goods to Arizona, Nevada and Utah, that also connects Mexico to the United States to Canada through the North American Free Trade Agreement (NAFTA). What springs to mind? A multi-lane highway carrying thousands of vehicles a day past cities at speeds up to 113km/hour, while egress ramps make sure vehicles get safely to city streets and their final destination. This is not the c
Mini-bridge aids Forth repairs
July 17, 2012
An engineering "first" means that rehabilitation work on a vital Scottish bridge built over 40 years ago can be carried out smoothly A new report to the Forth Estuary Transport Authority (FETA) in Scotland recommends appointing Balfour Beatty Civil Engineering of Edinburgh as 'preferred bidder' to carry out the scheduled replacement of the bridge's main expansion joints in 2009. However, the report to the bridge authority says the tender price of £13.7 million (US$21.3 million) is some £5 million ($7.8 mill
Productive and modular
July 17, 2012
Simem says that its new concrete mixing system offers greater throughput and product quality than other systems on the market. The new Xentrix mixer features a modular mixer design with an eccentric drive system. Because of the modular construction, Simem can build each unit to a specific requirement from a range of standard components. Managing Director Federico Furlani said, "We can produce modules for stock and assemble them to suit the customer order and we can reduce the delivery time, which is importa
Astec test fires 250th burner
July 17, 2012
Astec has test-fired the 250th burner manufactured since entering the burner market in 2003. Astec, an Astec Industries company, built the 150-million BTU/hr gas-and-oil-firing Phoenix Talon burner for Illinois-based Gallagher Asphalt Corporation. The company says its burners offer the latest in reliable burner technology combined with complete one-source responsibility, and it is able to offer everything from a simple burner replacement to a complete installed system, including retrofit installations.
Productive concrete pumping
July 17, 2012
Compact and easy to transport, the Booster 15 concrete pump from IMER can deliver material with aggregate sizes of up to 25mm and at pressures of up to 70bars. This hydraulic control, two-piston pump is offered in two different basic versions, one aimed at shotcreting applications and the other designed for use on compact sites for concrete pumping duties. Power comes from a low emission, low noise Lombardini diesel A range of standard features are fitted including a 12V electro-vibrator, cable remote contr
Airport recycling
July 17, 2012
Extec has supplied crushing and screening equipment that is being used to recycle materials and help in the renovation of the Pulkovo Airport near St Petersburg in Russia. An array of Extec machines are being used by local firm Recycle of Materials (ROM), which is one of Russia's leading firms in the materials recycling sector. ROM has extensive experience in demolishing and recycling concrete buildings built in the 1950s and 60s that were constructed using poor-quality concrete and is now diversifying into
Sandvik’s single brand celebration
July 17, 2012
The Extec and Fintec product lines of mobile crushing and screening equipment have been formally integrated and rebranded as part of Sandvik Mining and Construction's product offering. The range, under a single brand, is signified by new model nomenclature and machine colours, and a worldwide launch at a global customer event that attracted over 1,000 visitors, with people attending from a variety of places including Venezuela, China, Spain, Ireland, Norway and Scotland. Reflecting on the special four-day i
Lochkov bridge construction time 'cut'
July 17, 2012
As part of the R1 southern orbital motorway around the Czech capital, Prague, a joint venture is building a five-span, 461m long and approximately 65m high viaduct near the village of Lochkov, as a girder bridge construction. For the two steeply inclined twin piers, Doka has supplied an automatic climbing formwork solution that obviates the need for shoring and that will "cut more than 100 days from the construction period." Cast-in-place concrete construction of bridge piers with such a steep inclination
Foaming option
July 16, 2012
Foamed bitumen is a versatile and cost-effective tool in recycling roads - Mike Woof reports Wirtgen hopes to capitalise on the growing demand for materials recycling and its range of solutions for this sector has expanded considerably in recent times. The firm has been taking advantage of further developments in foamed bitumen technology to offer an array of cost-effective road repair solutions. The range allows this material to be used in array of cold recycling applications and Wirtgen also offers labora
Scalping solution from Sandvik
July 16, 2012
The first new mobile screen to be launched under the Sandvik name, rather than the Fintec or Extec brands, is the heavy duty tracked QE440 scalping screen. The QE440 was displayed in a live demonstration at a customer event in the UK this summer to launch the newly unified branding and new machine colours. During the demonstration, customers had a chance to view other mobile crushing and screening units in the Sandvik range, as well as the new BR2577 hydraulic breaker.