A new tunnel formwork system from Pilosio reduces the time needed for assembly. Made from standard components, this can be used for a wide range of geometries.
Modern technology is making testing more efficient and reliable, increasing productivity and reducing costs, as Patrick Smith reports A few years ago, visual inspection of an 18-year-old bridge by ARRB in Australia identified considerable cracking in the precast, prestressed deck planks as well as in the cast in situ deck overlay. Laboratory examination indicated that the deck planks and the deck overlay were suffering from a strong case of alkali-aggregate reaction (AAR). Testing of concrete cores drilled
Advances in asphalt plant technology will boost efficiency for producers, while increasing the percentage of recycled materials that can be used in the mix - Mike Woof writes. Asphalt plant technology continues to advance as the rival firms fine-tune their technologies for greater performance. New plants can give higher quality output due to new control technologies, while also allowing for recycled asphalt pavement (RAP) to be used more efficiently, while still ensuring tight mix specifications are met.
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Atlas Copco claims that its high precision tunnelling (HPT) system will offer greater productivity and reduced costs in drill and blast tunnelling operations. The HPT system is a package with five options for use on drill rigs and other types of construction equipment. Advanced PC-based software allows a worksite office to provide operational support to Atlas Copco rigs equipped with the Rig Control System (RCS). The Tunnel Manager system can help plan, store and evaluate data for the drilling process. This
