Three NDT Methods for the Assessment of the Concrete Permeability as a Measure of Durability
Conference paper
First Online:
Abstract
This contribution deals with the extensive measurements of the air permeability using TPT (Torrent Permeability Tester), of the water permeability by GWT (German Water Tester) and ISAT (Initial Surface Absorption Test) methods. The measurements were complemented with the determination of compressive strength. By the combination of these methods and their evaluations, it is possible to obtain the data enabling an assessment of the concrete cover quality from the viewpoint of durability on the high level of relevance.
Keywords
Covercrete Durability Gas and liquid permeability Pore structureNotes
Acknowledgements
The authors wish to acknowledge for the support of a project of The Grants Agency of The Czech Republic No.103/09/0065 and a project BD 12001031/2100.
References
- [1]RILEM TC-116-PCD (1999), Permeability of Concrete as a Criterion of its Durability, Final Report, Material and Structures, 32, pp. 163–173.CrossRefGoogle Scholar
- [2]Torrent, R.J., (1992), A Two-Chamber Vacuum Cell for Measuring the Coefficient of Permeability to Air of the Concrete Cover on Site, Materials and Structures, 25, p. 358–365.Google Scholar
- [3]GWT-4000, Instruction and Maintenance Manual, (1996), Hermann Instruments A/S, Denmark.Google Scholar
- [4]Levitt, M., (1971), The ISAT – A-Non-Destructive Test for the Durability of Concrete, British Journal of N.D.T., p. 106–112.Google Scholar
- [5]RILEM Report 40, (2007), Non-Destructive Evaluation of the Penetrability and Thickness of the Concrete Cover, ed. R. Torrent and L. F. Luco.Google Scholar
Copyright information
© RILEM 2013