Materiales de Construcción, Vol 63, No 311 (2013)

A comparison of tensile, fracture and fatigue mechanical behaviour of structural reinforcing bars made with different steels


https://doi.org/10.3989/mc.2013.02512

C. Rodríguez
Universidad de Oviedo, Spain

F. J. Belzunce
Universidad de Oviedo, Spain

A. F. Canteli
Universidad de Oviedo, Spain

Abstract


The use of austenitic stainless steels as rebar is an option increasingly used in reinforced concrete structures exposed to aggressive environments and especially those that have to work in marine environments. The same is true for duplex stainless steel rebars, although nowadays they have a lower use, mainly due to the fact that their inclusion in the reinforced concrete standards was delayed 10 years compared to austenitic stainless steel ones, and consequently their in-service behavior is not as well known.

A study of the mechanical properties, including fracture toughness, fatigue behaviour and corrosion resistance in saline alkaline environments of austenitic (AISI 304LN and 316LN) and duplex (D2205) stainless steel reinforcing bars was performed in this work. Bars made on a high ductility carbon steel (B500SD) that are normally used to reinforce concrete were also characterized and used as a comparison. Stainless steel reinforcing bars show mechanical properties at least similar but usually higher than one of the best carbon steel re-bars (B500SD), along with a significantly higher ductility and, of course, much better corrosion behaviour in saline alkaline environments.

Keywords


reinforcing bars; stainless steels; fatigue; fracture; corrosion

Full Text:


PDF

References


(1) Basham, K.: "Choices in corrosion-resistant rebar", Concrete Construction, vol. 44, nº 10 (1999), pp. 27-33

(2) Smith, E.N.: "The use of stainless steel for concrete reinforcing bars is gaining momentum". Stainless Steel World., vol. 10 (1998), 52-55.

(3) McGurn, J.M.: "Stainless steels reinforcing bars in concrete", Proceedings of the International Conference of Corrosion and Rehabilitation of Reinforced Concrete Structures, Orlando, FL, FHWA, December 1998.

(4) Knudsen, A.: "Cost effective enhancement of durability of concrete structures by intelligent use of stainless steels reinforcement", Proceedings of the International Conference of Corrosion and Rehabilitation of Reinforced Concrete Structures, Orlando, FL, FHWA, December 1998.

(5) Bertolini, L.; Pedeferri, P. y Pastore, T.: "Stainless steel in reinforced concrete structures". Proceedings of the Second International Conference on concrete under Severe Conditions, vol. 1, 21-24, (1998) (published by E&FN Spon).

(6) The Concrete Society: Concrete Society Technical Report 51, Guidance on the use of stainless steel reinforcement, Concrete Society Steering Committee, 1998.

(7) Ip, A.K.C.; Pianca, F. y Hope, B.B.: "Application of stainless steel reinforcement for highway bridges in Ontario", Nickel-Cobalt´97, Applications and Materials performance, vol. IV (1997), pp. 227-284 (eds: F.N. Smith, J.F. McGurn, G.Y. Lai, V.S Satri) The Metallurgy Society, CIM, Montreal.

(8) Castro, H.; Rodríguez, C.; Belzunce, F.J. y Canteli, A.F. : "Mechanical properties and corrosion behaviour of stainless steel reinforcing bars", Journal of materials processing technology, 143, (2003), pp. 134-137. http://dx.doi.org/10.1016/S0924-0136(03)00393-5

(9) BS 6744:2001: "Stainless steel bars for the reinforcement of concrete", 2001.

(10) DS 13 080-1:"Armeringsstal Del 1: Armerinsstal anvent til slapt armerede betonkonstruktioner Krav". Pr.vning, 1984, Basel, Birkhäuser Verlag.

(11) ASTM E112-96: "Standard Test Methods for Determining Average Grain Size" Annual Book of ASTM standards, vol. 03.01, PA, USA, 2004

(12) ASTM E92-82: "Standard Test Method for Vickers Hardness of Metallic Materials". Annual Book of ASTM Standards, vol. 03.01, PA, USA, 2003.

(13) ISO/CD 15630-1. 2: "Steel for the reinforcement and prestressing of concrete –Test methods- Part 1: Reinforcing bars and wires", 1998.

(14) ESIS P2-92: "ESIS procedure for determining the fracture behaviour of materials" European Structural Integrity Society, Delft, Holland, 1992.

(15) Tosal, L.; Rodríguez, C.; Betegón, C. y Belzunce, F.J.: "The influence of specimen size on the fracture behaviour of a structural steel at different temperatures", Journal of Testing and Evaluation, 28, (2000), pp. 276-281. http://dx.doi.org/10.1520/JTE12105J

(16) Canteli, A.; Esslinger, V. y Thürlimann, B.: "Ermu.dungsfestigkeit von Beweherungs-und Spannstählen". (1984) Institut fu.r Baustatik und Konstruction, ETH Zu.rich. Birkhäuser Verlag. Basel.

(17) Castillo, E.; Canteli, A. F.; Esslinger, V. y Thu.rlimann, B.: "Statistical Model for Fatigue Analysis of Wires", Strands and Cables. IABSE Proceedings, (1985), pp. 82-85.

(18) ASTM G59: "Standard test method for conducting potentiodynamic polarization resistance measurements", Annual Book of ASTM standards, Vol.03.02, PA, USA.

(19) McDonald, D., Pfeifer, D. y Virmani, P.: "Corrosion-resistant reinforcing bars findings of a 5-year FHEA study", Proc. of the Int. Conference on Corrosion and Rehabilitation of Reinforced Concrete Structures, Orlando, USA, December 1998.

(20) ASTM E1820-99: "Standard Test Method for Measurement of Fracture Toughness", Annual Book of ASTM standards, 1999.

(21) Joyce, J.A.: Manual on Elastic-Plastic Fracture, ASTM, 1996. http://dx.doi.org/10.1520/MNL27-EB

(22) Grinder, D. y Chone, J.: Formation of titanium nitride particles in continuously cast stainless steel products, Ed. N.A. McPherson and A. McLean, 1995.

(23) EN 10080: "Steel for the reinforcement of concrete, Parts 1, 2 and 3", 1999.

(24) McPherson, N.A. y McLean, A. Non-metallic inclusions in continously cast steel. Ed. N.A. McPherson and A McLean. Iron and Steel Society, 1995.

(25) Álvarez, S.M.; Bautista, A. y Velasco, F., Corrosion behaviour of corrugated lean duplex steels in simulated concrete pore solutions. Corrosion Science, 53 (2011), pp. 1748-1755. http://dx.doi.org/10.1016/j.corsci.2011.01.050

(26) Blanco, G.; Bautista, A. y Takemonti H. EIS study of passivation of austenitic and duplex stainless steels reinforcements in simulated pore solutions. Cement&Concrete Composites, 28 (2006), pp. 212-219. http://dx.doi.org/10.1016/j.cemconcomp.2006.01.012




Copyright (c) 2013 Consejo Superior de Investigaciones Científicas (CSIC)

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.


Contact us materconstrucc@ietcc.csic.es

Technical support soporte.tecnico.revistas@csic.es