Skip to main content
SpringerLink
Log in

Mechanical Behavior of Reinforcement Stirrups BSt 500s at Corrosive Environment

  • Published:
Journal of Materials Engineering and Performance Aims and scope Submit manuscript

Abstract

To date, there is no widely accepted regulation on the minimum required diameter of the bending drums, which shape the stirrups of the main concrete reinforcing bars, varying between 4 and 12 times the diameter of the bent bar, and thus resulting in various plastic strains. In the present work, the influence of the degree of plastic strain on the mechanical properties of steel bar of Class BSt 500s for concrete reinforcement stirrups is investigated, under the additional implication of laboratory corrosive conditions. The increase of the degree of the plastic strain of the stirrup bar had as a result a significant decrease in the ductility properties of the steel. Moreover, it is shown that the combination of plastic strain and corrosion causes additional damages, as strain fractures were recorded lower than that defined by the current specifications for concrete reinforcement, indicating the need for a new review of the relative specifications.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7

Similar content being viewed by others

References

  1. Comite Eurointernational du Beton, Durable Concrete Structures: CEB Design Guide, Bulletin d’ Information No. 182, Lausanne, 1989, 268 pp

  2. Mehta P.K. (1997) Durability: Critical Issues for the Future. Conc. Int. 19:27–33

    CAS  Google Scholar 

  3. Neville A.M. (1995) Properties of Concrete. 4th Edition, Longman, London, p 844

    Google Scholar 

  4. N.G. Thompson and D.R. Lankard, Improved Concretes for Corrosion Resistance, Report No. FHWA-RD-96–207, US Department of Transportation, Federal Highway Administration, Georgtown Pike, McLean VA, 1997

  5. Richardson M.G. (2002) Fundamentals of Durable Reinforced Concrete, Spon Press, London, p 260

    Google Scholar 

  6. Papadakis V.G., Vayenas C.G., Fardis M.N. (1991) Fundamental Modeling and Experimental Investigation of Concrete Carbonation. ACI Mater. J. 88:4363–373

    Google Scholar 

  7. Papadakis V.G., Fardis M.N., Vayenas C.G. (1996) Physicochemical Processes and Mathematical Modeling of Concrete Chlorination. Chem. Eng. Sci. 51(4):505–513

    Article  CAS  Google Scholar 

  8. B. Borgard, C. Warren, R. Somayaji, and R. Heidersbach, Mechanisms of Corrosion of Steel in Concrete, ASTM STP 1065, Philadelphia, 1990, 174 pp

  9. Capozucca R. (1995) Damage to Reinforcement Concrete due to Reinforcement Corrosion. Constr. Build. Mater. 9(5):295–303

    Article  Google Scholar 

  10. Fang C., Lungren K., Chen L., Zhu C. (2004) Corrosion Influence on Bond in Reinforced Concrete. Cement Concrete Res. 34(11):2159–2167

    Article  CAS  Google Scholar 

  11. C.A. Apostolopoulos, M.P. Papadopoulos, and S.G. Pantelakis, Tensile Behavior of Corroded Reinforcing Steel Bars ΒSt 500s, Construction and Building Materials, 2006, in press

  12. ELOT 971, Hellenic Standard, Weldable Steels for the Reinforcement of Concrete, 1994-04-01

  13. Hellenic Regulation for reinforced concrete 2000 (EKOS 2000), Ministry of Environment Planning and Public Works, Athens, 2000

  14. DIN 488, Reinforcing steel bars testing, 1986

  15. EN 10080-3/99, Steel for the reinforcement of concrete—weldable ribbed reinforcing steel B500: Technical delivery conditions for bars, coils and welded fabric, Brussels, 1999

  16. C.A. Apostolopoulos, and V.G. Papadakis, Initiation Mechanisms, Propagation and Consequences of Steel Corrosion on Aged Concrete Structures, Cement and Concrete Research, submitted, 2005

  17. ASTM B 117-94, Standard Practice for Operating Salt (Fog) Testing Apparatus, Annual Book of ASTM standards, Section 3, Metal Test Methods and analytical Procedures, West Conshohocken, ASTM, Philadelphia, 1995, p 1–8

  18. Felbeck D.K. (1968) Introduction to Strengthening Mechanism. NJ Prentice Hall, Englewood Clitts

    Google Scholar 

  19. Sih G.C., Chao C.K. (1984) Failure Initiation in Unnotched Specimens Subjected to Monotonic and Loading. J. Theor. Appl. Fract. Mech 2:67–73

    Article  Google Scholar 

  20. Jeong D.Y., Orringen O., Sih G.C. (1995) Strain Energy Density Approach to Stable Crack Extension under Net Section Yielding of Aircraft Fuselage. J. Theor. Appl. Fract. Mech. 22:127–137

    Article  CAS  Google Scholar 

  21. C.G. Trezos, Reliability Consideration of the Structural Response of Reinforced Concrete Structures under Seismic Conditions, 11th European Conference on Earthquake Engineering, Paris, 1998

Download references

Author information

Authors and Affiliations

  1. Department of Mechanical and Aeronautical Engineering, University of Patras, Patras, Greece

    C.A. Apostolopoulos

  2. Department of Environmental and Natural Resources Management, University of Ioannina, Seferi 2, GR-30100, Agrinio, Greece

    V.G. Papadakis

Authors
  1. C.A. Apostolopoulos
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. V.G. Papadakis
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to V.G. Papadakis.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Apostolopoulos, C., Papadakis, V. Mechanical Behavior of Reinforcement Stirrups BSt 500s at Corrosive Environment. J. of Materi Eng and Perform 16, 236–241 (2007). https://doi.org/10.1007/s11665-007-9038-y

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11665-007-9038-y

Keywords

Search

Navigation