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H. Linsbauer:
"Fluid-structure interaction related aspects during the grouting of cracks in concrete";
Vortrag: ICF 10, Honolulu; 02.12.2001 - 07.12.2001.

Fluid Structure Interaction (FSI) processes in cracked systems generally may be assigned to Hydraulic Fracturing, which in the field of petroleum-engineering is well understood by mathematical and numerical descriptions and utilisation in situ. However there is a further important aspect related to this technique but opposite in the objective grouting of cracked concrete structures under the aspect of full rehabilitation. Unfortunately uncontrolled grouting may sometimes cause an opposite effect, e.g. creating of new cracks or further crack propagation. Based on the understanding of the closely coupled process between the injected fluid and the structural response especially the Stress Intensity Factor development at the crack front may serve as an efficient control parameter during the grouting procedure.