Demolition at the military base at the Vienna Arsenal

noise pollution and dust emissions had to be kept to a minimum

Built by Kaiser Frans Joseph I almost 200 years ago, the imposing military base was not intended to keep external foes out of Vienna, but rather to protect the power of the Austrian state in the event of a revolutionary uprising in the city. At the time, 177 million bricks were used to build the existing Arsenal which consists of multiple buildings. In the following years, ever more extensions were added. Large parts of the original Arsenal are still preserved today and the buildings are used by the Austrian armed forces as well as by a multitude of other companies. AY-KA Ges.m.b.H was charged with the required demolition of an old military fuel station within the Arsenal site. The large Austrian demolition company specialises in complex industrial demolition and proper dismantling. "First, we began with contaminant investigation, cleaning and ventilation of both of the 30,000 litre tanks and the 1.000 litre underground tank. We then also started the demolition of two large associated halls, sometimes with three excavators at once, the extrication of the tanks using a 350 tonne crane and the extraction of the antifreeze from the tank partition walls. Dismantling then followed with the erection of intermediate storage for contaminated extracted material, removal and, finally, proper disposal," AY-KA's technical director describes the extensive work steps for the project.

During all of these challenges, noise pollution and dust emissions had to be kept to a minimum; hazardous deflagrations or contamination of the ground water could not occur at any point: the site was surrounded by multiple active military buildings. A directly adjacent office building with around 5.000 employees and a large furniture store also made the whole demolition of the military fuel station especially interesting. The whole process was further complicated by the biggest motorway access route to Vienna, the A23 ring road, which is in the immediate vicinity. The RAMMER 2577 hydraulic hammer which was used for the demolition under these conditions proved to be ideally suited. The anti-vibration and noise-protected RAMMER 2577 hydraulic hammer produces a sound power level of just 124dB. The adjustable blank impact protection system made the RAMMER 2577 hydraulic hammer, with an operating weight of 1,760kg, one of the key machines on the site. The maintenance-free diaphragm accumulator ensures high and consistent hammer performance and thus ensures smooth running.

"With our distributor, Stangassinger, in Upper Bavaria we already have a technically experienced partner on our side for jobs like this who offers us expert advice with excellent after-sales service as well as quick delivery and flexible financing models," project manager Martinz explains. We were able to demolish this 30.000m3 enclosed space with 130 tonnes of steel and 1,000m3 of contaminated soil in just four weeks – thus finishing a full week before the scheduled completion date.