The times in which wrecking balls simply leveled buildings are largely a thing of the past. This rough approach is too loud, too uncontrolled and creates mixed debris which is expensive to dispose of. On today's construction sites, precision is the key. Companies such as Koop Diamanttechnik from Munich have been in the business for years and understand what is important. Every job presents its own unique problems and requires the development of customized concept. "Sometimes the object is located in the inner city and both sides abut against buildings which must not be damaged. Sometimes a clinic or factory has to continue operating without any impairments", explains Uwe Koop, the Managing Director of Koop Diamanttechnik. Because the job is not always about demolition, or correctly, the planned deconstruction of the entire building. The range of work covers everything from core drilling for installing heating and sanitary facilities to opening walls for the subsequent installation of stairs or elevators.
Depending on the job the employees, all specialists in drilling and separation techniques, utilize drills, borehole excavators, saws and diamond wire saws, a special technique for especially thick walls. The machines work without impact and employ high-frequency technology. This results in a vibration-free, low-noise separation process which is also easy on the neighbors. Eight Mercedes-Benz Sprinters all with the standardized Koop design are responsible for transporting the tools.
Before the actual work can begin, the company generally has to obtain wrecking permits which precisely describe the process. Time plays a critical role. In April 2007 the Alte Mainbrücke in Ochsenfurt was in danger of collapsing and needed to be deconstructed. The town council expected the shipway to be blocked for two weeks, resulting in extensive financial losses. In contrast, the concept developed by Koop Diamanttechnik and the Max Aicher corporate group only required the route to be blocked for two days and won the contract as a result. The preparations inside the 65 m long bridge took four weeks and the rest of the process progressed rapidly, as Uwe Koop explains: "We actually succeeded in carrying out the final cuts on both ends of the bridge simultaneously. A 1000 t crane then lifted the two longitudinal sections on to the bank." A successful conclusion to the complex, large-scale project, where the diamond wire saw was once again used. Whether a wrecking ball concept was also part of the bidding is unknown. Nor did it win the job.