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Experimental investigation of the influence of the bond conditions on the shear bond strength between steel and self-compacting concrete using push-out tests

Peter Helincks, Wouter De Corte, Jan Klusak, Veerle Boel UGent and Geert De Schutter UGent (2013) Key Engineering Materials. 525-526. p.205-208
abstract
Steel-concrete joints are often provided with welded shear studs. However, stress concentrations are induced in the structure due to the welding. Moreover, a reduction in toughness and ductility of the steel and a decreased fatigue endurance of the construction is observed. In this paper the shear bond strength between steel and ultra-high performance concrete (UHPC) without mechanical shear connectors is evaluated through push-out tests. The test samples consist of two sandblasted steel plates with a thickness of 10 mm and a concrete core. The connection between steel and concrete is obtained by a 2-component epoxy resin. Test samples with a smooth adhesive layer are compared with those with an epoxy layer, which is applied with a toothed paddle and/or gritted with small aggregates. In this research, specimens prepared with river gravel, crushed stone, and steel grit are compared and also two different epoxy resins are used. During the tests, the ultimate shear force is recorded as well as the slip between steel and concrete. All test specimens exhibited a concrete-adhesive or concrete failure. Furthermore, test results show that the use of a more fluid epoxy resin improves the anchorage of the gritted aggregates in the adhesive layer, resulting in higher shear bond stresses. No significant difference is found between specimens, gritted with river gravel or crushed stone. Applying the adhesive layer with the toothed paddle in horizontal direction slightly improves the bond behaviour. Finally, the experimental results of the test members with a smooth epoxy layer without gritted aggregates, provide test data for a fracture mechanics approach, which uses a 2D numerical model of the test specimen, composed of steel, epoxy resin, and concrete.
Please use this url to cite or link to this publication:
author
organization
year
type
conference (proceedingsPaper)
publication status
published
subject
keyword
Steel-concrete joint, epoxy adhesive layer, shear bond strength, push-out test
in
Key Engineering Materials
editor
QF Li, YL Li and MH Aliabadi
volume
525-526
issue title
ADVANCES IN FRACTURE AND DAMAGE MECHANICS XI
pages
205 - 208
publisher
TRANS TECH PUBLICATIONS LTD
place of publication
LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND
conference name
11th International Conference on Fracture and Damage Mechanics
conference location
Xian, PEOPLES R CHINA
conference start
2012-09-18
conference end
2012-09-21
Web of Science type
Proceedings Paper
Web of Science id
000315543300052
ISSN
1013-9826
DOI
10.4028/www.scientific.net/KEM.525-526.205
language
English
UGent publication?
yes
classification
P1
copyright statement
I have transferred the copyright for this publication to the publisher
id
4303675
handle
http://hdl.handle.net/1854/LU-4303675
date created
2014-02-25 13:23:14
date last changed
2017-01-02 09:52:58
@inproceedings{4303675,
  abstract     = {Steel-concrete joints are often provided with welded shear studs. However, stress concentrations are induced in the structure due to the welding. Moreover, a reduction in toughness and ductility of the steel and a decreased fatigue endurance of the construction is observed. In this paper the shear bond strength between steel and ultra-high performance concrete (UHPC) without mechanical shear connectors is evaluated through push-out tests. The test samples consist of two sandblasted steel plates with a thickness of 10 mm and a concrete core. The connection between steel and concrete is obtained by a 2-component epoxy resin. Test samples with a smooth adhesive layer are compared with those with an epoxy layer, which is applied with a toothed paddle and/or gritted with small aggregates. In this research, specimens prepared with river gravel, crushed stone, and steel grit are compared and also two different epoxy resins are used. During the tests, the ultimate shear force is recorded as well as the slip between steel and concrete. All test specimens exhibited a concrete-adhesive or concrete failure. Furthermore, test results show that the use of a more fluid epoxy resin improves the anchorage of the gritted aggregates in the adhesive layer, resulting in higher shear bond stresses. No significant difference is found between specimens, gritted with river gravel or crushed stone. Applying the adhesive layer with the toothed paddle in horizontal direction slightly improves the bond behaviour. Finally, the experimental results of the test members with a smooth epoxy layer without gritted aggregates, provide test data for a fracture mechanics approach, which uses a 2D numerical model of the test specimen, composed of steel, epoxy resin, and concrete.},
  author       = {Helincks, Peter and De Corte, Wouter and Klusak, Jan and Boel, Veerle and De Schutter, Geert},
  booktitle    = {Key Engineering Materials},
  editor       = {Li, QF and Li, YL and Aliabadi, MH},
  issn         = {1013-9826},
  keyword      = {Steel-concrete joint,epoxy adhesive layer,shear bond strength,push-out test},
  language     = {eng},
  location     = {Xian, PEOPLES R CHINA},
  pages        = {205--208},
  publisher    = {TRANS TECH PUBLICATIONS LTD},
  title        = {Experimental investigation of the influence of the bond conditions on the shear bond strength between steel and self-compacting concrete using push-out tests},
  url          = {http://dx.doi.org/10.4028/www.scientific.net/KEM.525-526.205},
  volume       = {525-526},
  year         = {2013},
}

Chicago
Helincks, Peter, Wouter De Corte, Jan Klusak, Veerle Boel, and Geert De Schutter. 2013. “Experimental Investigation of the Influence of the Bond Conditions on the Shear Bond Strength Between Steel and Self-compacting Concrete Using Push-out Tests.” In Key Engineering Materials, ed. QF Li, YL Li, and MH Aliabadi, 525-526:205–208. LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND: TRANS TECH PUBLICATIONS LTD.
APA
Helincks, P., De Corte, W., Klusak, J., Boel, V., & De Schutter, G. (2013). Experimental investigation of the influence of the bond conditions on the shear bond strength between steel and self-compacting concrete using push-out tests. In QF Li, Y. Li, & M. Aliabadi (Eds.), Key Engineering Materials (Vol. 525–526, pp. 205–208). Presented at the 11th International Conference on Fracture and Damage Mechanics, LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND: TRANS TECH PUBLICATIONS LTD.
Vancouver
1.
Helincks P, De Corte W, Klusak J, Boel V, De Schutter G. Experimental investigation of the influence of the bond conditions on the shear bond strength between steel and self-compacting concrete using push-out tests. In: Li Q, Li Y, Aliabadi M, editors. Key Engineering Materials. LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND: TRANS TECH PUBLICATIONS LTD; 2013. p. 205–8.
MLA
Helincks, Peter, Wouter De Corte, Jan Klusak, et al. “Experimental Investigation of the Influence of the Bond Conditions on the Shear Bond Strength Between Steel and Self-compacting Concrete Using Push-out Tests.” Key Engineering Materials. Ed. QF Li, YL Li, & MH Aliabadi. Vol. 525–526. LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND: TRANS TECH PUBLICATIONS LTD, 2013. 205–208. Print.