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Advanced grouting system meets specification
February 15, 2012
As engineers write tighter and tighter specifications for grouting, so equipment manufacturers must develop solutions which can help contractors meet those specifications, and prove that they have met them Atlas Copco's new mobile grouting system, Unigrout Smart A, has been designed to do just that: it can mix, pump, monitor, log and control flow and pressure precisely. The control system allows on site mixing of a range of grouts as required by the project.
Association's glass bead 'concern'
February 15, 2012
A study sponsored by the American Glass Bead Manufacturers' Association reveals that "a growing number of imported glass bead products for highway markings exhibit high concentrations of heavy metals, including arsenic and lead."
Developing a new range of tunnelling machines
February 15, 2012
A new agreement between Volvo and Sweden's CeDe Group will see a new range of tunneling machines coming to the market.
Assessing the risk of tunnels inn urban areas
February 15, 2012
A new technique for assessing the impacts of tunnels on nearby buildings and structures will allow a more realistic establishment of risk and could therefore reduce project insurance premiums
IRF awards for road industry excellence
February 15, 2012
Eleven outstanding projects honoured for leading the way in road industry excellence. The winners of the 2010 Global Road Achievement Awards (GRAA) Competition were recognised at the 10th Annual 25 January, 2011. Eleven projects from six different countries around the world were each honoured for leading the way in excellence in a respective category of the road industry.
A history lesson in private public partnerships
February 15, 2012
Michel Démarre gives some historical insights into public-private partnerships conceived to implement urban infrastructure projects, a concept that surprisingly dates back to as early as the 13th century!
Tunnel ventilation systems provide fresh air
February 15, 2012
Elta Fans supplied specialist ventilation fans for the A3 Hindhead Tunnel in Surrey, UK which opened in July this year.
Road markings - simple, effective guidance
February 15, 2012
Road markings as a simple yet extremely effective method of guiding motorists safely on the world's road. Patrick Smith reports. Road markings are as important as road signs and give information about the roads being travelled on and actions that drivers should or should not be taking. For example, in many instances white lines often tell motorists something about the road: longitudinal lines can warn of situations that require action such as turn right, left or do not cross. Transverse lines often mean giv
Researching vehicle tyre safety
February 15, 2012
For the last two years a team of European partners has been examining the interaction between vehicle tyres and road surfaces. According to the UK's TRL, one of the partners in the European project Tyrosafe (Tyre and Road Surface Optimisation for Skid resistance And Further Effects), devices to measure skid resistance were developed at the forerunner of the UK's TRL in the 1930s.
Innovations in compact construction machines
February 15, 2012
2011 has already seen a host of new machine introductions among compact equipment makers, and we take a look at some of them in the utility sector With emissions legislation dominating the introduction of new machines over 130kW, smaller equipment has not been overlooked. Most firms have been working feverishly to produce quieter, more economical and more productive equipment and Japanese maker Takeuchi is a good example, having recently introduced a new 8.5 tonne midi excavator.