Explosive demolition has been used to remove an old highway bridge in Pennsylvania. Some 90kg of explosives were used to blast the pre-weakened steel structure of the 87 year-old Masontown Bridge. The redundant steel truss structure lay just 3m from the new bridge now carrying Route 21 over the Monongahela River and connecting Masontown with Monongahela Township. The location of the explosives and the pre-weakening work carried out however meant that the old structure, built in 1925 and upgraded in 1933, fe
Three years of development and field trials have resulted in the proven SparkMaster system from ASL. This sophisticated initiator is said to meet the needs of explosive engineers requiring a reliable shocktube-based system. The SparkMaster has been designed to suit an array of site conditions and can provide reliability even in challenging environments. The solid-state, ergonomically-designed unit is portable, robust, highly-visible and weighs just 700grammes. It can be operated while still inside its weath
Major players will be at Hillhead 2012 where 91% of the space is allocated.With almost nine months to go, 91% of the stand space at Hillhead 2012 has already been allocated to exhibitors, including major players such as Volvo, Sandvik, Metso, Terex Group, Finning/Caterpillar, Liebherr and Bell Equipment.click image to enlargeHillhead 2012Event director Jack Berridge said demand for space over the summer had been very buoyant and the site plan had filled up very quickly.
