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A new Scottish specification for stone mastic asphalt could help with some of the durability issues sometimes experienced in the UK An alternative specification for stone mastic asphalt has been used on the A90 in Scotland, with tests suggesting that the material will be more durable than thin surfacing produced under the standard UK specification, Clause 942 of the Specification for Highway works.

The Czech Republic has seen its first ever use of warm mix produced using additive Evotherm - and a survey carried out in the US shows that warm mix is still on the rise there - Kristina Smith reports The troubled Blanka Tunnel in Prague will see the Czech Republic’s first ever use of Evotherm warm mix asphalt (WMA) technology. The 6km tunnel is the longest urban motorway tunnel in Europe and will take the north-west section of the city ring road below ground. Designed as dual carriageway throughout w

The challenging construction of India’s largest road tunnel is part of a vital US$500 million project aiming to connect the isolated northern state of Jammu and Kashmir with the rest of the vast and highly populated country. Guy Woodford reports Travelling on National Highway 1A (NH 1A) in northern India should be the dictionary definition of ordeal. The single lane, narrow and winding road crosses some of the steepest, most treacherous terrain on the planet. The arduous route becomes especially difficult t

Turkey’s longest, and what will be the world’s fourth longest, highway tunnel is being built under Mount Ovit in the northeast of the country. Sandvik Construction is playing a vital role in the construction of the giant new structure, which will enable all-year-round access to what is a relatively remote and often snow-blocked part of Anatolia Having had their freedom of movement blighted for many years by wintertime snow blocking the D925 highway, along with narrower roads and passes, at Mount Ovit, resi

A trio of leading global construction equipment manufacturers have released innovative hybrid excavators. Guy Woodford reports on the new models Hitachi Construction Machinery (Europe) has launched the first of a new generation of excavators, the ZH210LC-5 hybrid. The latest innovative Zaxis-5 model has been designed to deliver reliable performance with fewer emissions and less fuel than the ZX210-3 model.