Title: Machining of reinforced concrete using grinding wheels with defined grain pattern

Authors: Berend Denkena, Jens Kohler, Florian Seiffert

Addresses: Institute of Production Engineering and Machine Tools (IFW), Leibniz Universitat Hannover, An der Universitat 2, 30823 Garbsen, Germany. ' Institute of Production Engineering and Machine Tools (IFW), Leibniz Universitat Hannover, An der Universitat 2, 30823 Garbsen, Germany. ' Institute of Production Engineering and Machine Tools (IFW), Leibniz Universitat Hannover, An der Universitat 2, 30823 Garbsen, Germany

Abstract: By means of single grain scratch experiments, the material removal mechanisms of reinforced concrete have been investigated. On the basis of these experiments, the removal factors k_w and k_d have been introduced. These removal factors enable the design of different adapted, deterministic and stochastic cut-off grinding wheels. With three different prototypic tools, real cut-off grinding experiments have been conducted. The performance of these prototypic tools has been evaluated by process force and wear investigations. The results show that with regard to process efficiency and stability, the cut-off grinding wheel with higher diamond grain concentration and deterministic distribution performs best in the given field of application.

Keywords: cut-off grinding; circular stone sawing; grinding wheels; diamond tools; reinforced concrete; steel-concrete compounds; grain distribution; defined grain patterns; deterministic tool design; tangential forces; normal forces; tool surface analysis; diamond wear; steel adhesion.

DOI: 10.1504/IJAT.2011.041606

International Journal of Abrasive Technology, 2011 Vol.4 No.2, pp.101 - 116

Received: 10 Jan 2011
Accepted: 11 Feb 2011
Published online: 27 Sep 2014 *

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