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High quality Swedish stone

April 13, 2012

Close to Sweden's second largest city Göthenburg lies the efficient Jehander quarrying operation run by Heidelberg Cement. The site produces around 9,000tonnes/day at peak seasonal demand and has an output of some 1,000,000tonnes/year. The site has recently renewed its operating permission and now has the necessary approval to work until 2021. Niklas Osvaldsson is regional manager for Heidelberg Cement and said, "Since early 2000 this has been part of the Heidelberg Group." Stone production originally st

New research highlights risks of smartphone use while driving

April 13, 2012

A new study carried out by the UK’s Transport Research Laboratory (TRL) highlights the increased risks resulting from drivers using smartphones while at the wheel. Previous research shows that using a mobile phone while driving impairs driving performance. But with smartphones now becoming more common, an increasing number of drivers are able to engage in a broad range of activities using their phone while at the wheel. The TRL’s study investigated whether there was an effect of social networking using a sm

Plans are being prepared for Norway’s deepest tunnel link

April 13, 2012

The Danish consultant Cowi is working on a study for Norway’s Rogfast Tunnel, which will be the world's longest and deepest tunnel. The 25km tunnel is planned to open to traffic in 2021. It will cost some €1.08 billion to construct. Cowi has landed contracts for preliminary studies but is also keen to take on a portion of detailed planning.

An array of dump trucks, large and small

April 13, 2012

XCMG has developed several new products including a new wheeled excavator, an asphalt plant and new rigid dump truck models. The ET110 excavator is a versatile machine with its wheels mounted on hydraulically adjustable arms that allow the unit to operate on uneven terrain and on slopes. The new XAP320 asphalt plant is a fourth generation machine that is said to feature considerable performance upgrades over the firm’s previous units.

Building Egypt's world class Desert Highway

April 13, 2012

A huge highway upgrade project will transform the Cairo-Alexandria road link into a world-class connection as Mike Woof reports. The work to upgrade the Desert Highway connecting Egypt's sprawling capital Cairo with its major port Alexandria, is one of the country's largest infrastructure projects for many years. This 220km highway link is being widened and improved to cope with the hugely increased traffic volumes resulting partly from Egypt's fast growing vehicle population. The Egyptian economy is strong

Drilling quick

April 13, 2012

Atlas Copco says that its latest T-thread drilling system offers up to 30% longer service life over previous designs. The new T-WiZ drill string comes with a combination of T-WiZ Speedrods and T-WiZ shank adapters and this system allows fewer rod changes and more productivity/shift. The T-WiZ features a tough thread system and is robust enough to prevent product breakage in the blast hole. Using this system boosts bench and production drilling according to the firm, with increases in productivity and an inc

Wide range of construction machines

April 13, 2012

Jonyang is a joint venture owned by Guizhou Guiyang Industrial Investment Holding Company and Singapore Technologies Kinetics (ST Kinetics), with excavators forming the main sales focus.

Drilling efficiency

April 13, 2012

The latest developments in drilling rigs can help boost efficiency in quarry producion applications - Mike Woof reports. Efficient drilling and blasting operations can have a huge impact on production costs in quarrying. Accuracy of hole direction and depth, as well as optimum blast design and explosives use, are critical for efficient blasting work. Ineffective blasting can result in high quantities of fines of low commercial value as well as over-sized material requiring secondary breaking. This impacts o

High speed bridge demolition minimises disruption

April 13, 2012

A high speed bridge demolition project has been carried out successfully in Germany. Speed was of the essence as the bridge spanned an important road link and had to be removed in a tight time frame, minimising disruption to traffic.

Compaction control boosts efficiency

April 13, 2012

Effective compaction control is one of a series of technical innovations boosting performance efficiency – Mike Woof writes. Maximising compaction efficiency can be a major cost factor on construction projects. Both for soil and asphalt compaction sectors, the risk from leaving an area under or over-compacted is substantial.