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NDT methods for civil engineering, Bundesanstalt für Materialforschung und -prüfung , Berlin , Germany
NDT methods for civil engineering, Bundesanstalt für Materialforschung und -prüfung , Berlin , Germany
Designing of structures with medium to high performance requirements is a demanding and challenging engineering task. Depending on the location and type of the planned structure, various pre-testing methods should be applied. In recent decades, there has been a focus on the durability of concrete. Concrete is a porous material with a relatively thin protective cover layer, making it vulnerable to the penetration of external agents such as carbon dioxide. Gas permeability testing (kT), a relatively new non-destructive method (NDT), should therefore be considered. This paper presents results of gas permeability testing on a set of larger concrete samples made under controlled conditions with some paroperty variations order to find initial kT parameters important for quality assurance.
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