An Analysis of the Bonding Energy through Pull-Out Tests for Aerated Concrete with Various Steel Strip Geometries

Abstract:

The relationship between various steel strip geometries and the bonding energy through pull-out tests of aerated concrete specimens is investigated. Prismatic concrete samples containing embedded steel strips with and without holes of differing sizes and quantities were analysed. Improvements of the bonding energy through pull-out tests by 70% are possible by increasing the number of holes on a steel strip from one to four while maintaining a constant surface area. The energy increased even up to 130% for strips containing holes compared to strips without. In addition, the tests have been carried out with a novel easy to assemble set-up containing a freely adjustable ball-joint and a plate with embedded bolts to avoid eccentricity during pull-out tests.

• Periodical: Advanced Materials Research (Volume 275)
• Pages: 55-58
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.275.55
• Online since: July 2011
• Authors: Dariusz Alterman, Juan Vilches, Thomas Rainer Neitzert
• Keywords: Aerated Concrete, Bonding Behaviour, Fracture Energy, Pull-Out Test, Steel Strip

References

[1] L. Bouazaoui, A. Li: Analysis of steel/concrete interfacial shear stress by means of pull out test, International Journal of Adhesion & Adhesives, Vol. 28 (2008), pp.101-108.

DOI: 10.1016/j.ijadhadh.2007.02.006

[2] X. Chu, T. Neitzert: Experimental and numerical modelling of interfacial behaviour between galvanised steel and aerated concrete, International Journal of Modelling, Identification and Control, Vol. 2, No. 3 (2007), pp.208-218.

DOI: 10.1504/ijmic.2007.014938

[3] B. Banholzer, W. Brameshuber, W. Jung: Analytical evaluation of pull-out tests-the inverse problem, Cement & Concrete Composites, Vol. 28 (2006), p.564–571.

DOI: 10.1016/j.cemconcomp.2006.02.015

[4] J. Cao, D. Chung: Degradation of the bond between concrete and steel under cyclic shear loading, monitored by contact electrical resistance measurement, Cement and Concrete Research, Vol. 31 (2001), pp.669-671.

DOI: 10.1016/s0008-8846(01)00462-8

[5] F. Al-Mahmoud, A. Castela, R. Françoisa, C. Tourneur: Effect of surface pre-conditioning on bond of carbon fibre reinforced polymer rods to concrete, Cement & Concrete Composites, Vol. 29 (2007), p.677–689.

DOI: 10.1016/j.cemconcomp.2007.04.010

[6] L. De Lorenzis, A. Rizzo, A. La Tegola: A modified pull-out test for bond of near-surface mounted FRP rods in concrete, Composites: Part B, Vol. 33 (2002), p.589–603.

DOI: 10.1016/s1359-8368(02)00052-5

[7] D. Alterman, J. Vilches, T. Neitzert: Effect of steel strip geometry on pull-out strength of aerated concret, in Proc. Edited by A.M. Brandt on Brittle Matrix Composite, ZTUREK and Woodhead Publ. Ltd. (2009), pp.439-448.

DOI: 10.1533/9781845697754.439