Abstract
The high mechanical performances showed by geopolymer concrete led several researchers to investigate about possibilities of using this material in reinforced structural elements. Since geopolymer binder has a different microstructure from ordinary Portland Cement (OPC) it is necessary to understand the bonding behavior between geopolymer concrete and steel bar. Generally, it has been observed that geopolymer concrete (GPC) has higher bond strength than OPC due to the higher compression strength and the dense and compact microstructure of GPC. In this context, several authors worked also on bond strength of GPC with glass fiber-reinforced polymer (GFRP) rebars. In this paper the bond-slip behavior of GPC with both steel and GFRP reinforcement bar will be investigated. The results obtained in this work showed that GPC has a higher bond strength than the values purposed by Model Code 2010 for an OPC concrete with the same compression strength. Moreover, sand-coated GFRP bar showed a lower bonding capacity to that of deformed steel bars conventionally used for structural applications.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Aiello, M.A., Leone, M., Pecce, M.: Bond performances of FRP rebars-reinforced concrete. J. Mater. Civ. Eng. 19, 205–213 (2007). https://doi.org/10.1061/(ASCE)0899-1561(2007)19
Al-Azzawi, M., Yu, T., Hadi, M.N.S.: Factors affecting the bond strength between the fly ash-based geopolymer concrete and steel reinforcement. Structures 14(January), 262–272 (2018). https://doi.org/10.1016/j.istruc.2018.03.010
Attanasio, A., et al.: Secondary raw materials for a circular economy in concretes [submitted]. Italian Concrete Days - Napoli (2020)
Castel, A., Foster, S.J.: Bond strength between blended slag and Class F fly ash geopolymer concrete with steel reinforcement. Cem. Concr. Res. 72, 48–53 (2015). https://doi.org/10.1016/j.cemconres.2015.02.016
CEB-FIP: Fib Model Code for Concrete Structures (2010). https://doi.org/10.1007/s13398-014-0173-7.2
Dahou, Z., Castel, A., Noushini, A.: Prediction of the steel-concrete bond strength from the compressive strength of portland cement and geopolymer concretes. Constr. Build. Mater. 119, 329–342 (2016). https://doi.org/10.1016/j.conbuildmat.2016.05.002
Ding, Y., Dai, J.G., Shi, C.J.: Mechanical properties of alkali-activated concrete: a state-of-the-art review. Constr. Build. Mater. 127, 68–79 (2016). https://doi.org/10.1016/j.conbuildmat.2016.09.121
Fernández-Jiménez, A., Palomo, A.: Engineering Properties of Compacted Fly Ash. Aci Materials Journal, March 2006 (2006)
Lehne, J., Preston, F.: Making concrete change innovation in low-carbon cement and concrete. Chatham House Report, 1–122 (2018). https://doi.org/10.1088/1742-6596/1015/3/032163
Ma, C.K., Awang, A.Z., Omar, W.: Structural and material performance of geopolymer concrete: a review. Constr. Build. Mater. 186, 90–102 (2018). https://doi.org/10.1016/j.conbuildmat.2018.07.111
Maranan, G.B., Manalo, A.C., Karunasena, K., Benmokrane, B.: Bond-slip behaviour of GFRP bars into geopolymer concrete. Proceedings of the 7th International Conference on FRP Composites in Civil Engineering, CICE 2014, January 2015 (2014)
Mo, K.H., Alengaram, U.J., Jumaat, M.Z.: Structural performance of reinforced geopolymer concrete members: a review. Constr. Build. Mater. 120, 251–264 (2016). https://doi.org/10.1016/j.conbuildmat.2016.05.088
RILEM TC: RC 6 Bond test for reinforcement steel. 2. Pull-out test (RILEM (ed.)) (1983)
Sarker, P.: Bond strengths of geopolymer and cement concretes. Advances in Science and Technology 69, 143–151 (2010). https://doi.org/10.4028/www.scientific.net/ast.69.143
Singh, B., Ishwarya, G., Gupta, M., Bhattacharyya, S.K.: Geopolymer concrete: a review of some recent developments. Constr. Build. Mater. 85, 78–90 (2015). https://doi.org/10.1016/j.conbuildmat.2015.03.036
Sofi, M., Van Deventer, J.S.J., Mendis, P.A., Lukey, G.C.: Bond performance of reinforcing bars in inorganic polymer concrete (IPC). J. Mater. Sci. 42(9), 3107–3116 (2007). https://doi.org/10.1007/s10853-006-0534-5
Tekle, B.H., Khennane, A., Kayali, O.: Bond properties of glass fibre reinforced polymer bars with fly-ash based geopolymer concrete. 10th International Conference on Composite Science and Technology, October, 1–8 (2015)
Topark-Ngarm, P., Chindaprasirt, P., Sata, V.: Setting time, strength, and bond of high-calcium fly ash geopolymer concrete. J. Mater. Civ. Eng. 27(7), 1–7 (2015). https://doi.org/10.1061/(ASCE)MT.1943-5533.0001157
UNI EN 12390-13: Testing hardened concrete - Part 13: Determination of secant modulus of elasticity in compression (2013)
UNI EN 12390-3: Testing hardened concdrete - Part 3: Compressive strength of test specimens, pp. 4–10 (2001)
Acknowledgements
This research was carried out in the framework of the Regional Project CIRCE “seCondary raw materials foR a circular Economy in buildings” founded by INNONETWORK 2017 | Sostegno alle attività di R&S per lo sviluppo di nuove tecnologie sostenibili, di nuovi prodotti e servizi of Puglia Region (Codice Prog S0GS1T3).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2024 The Author(s), under exclusive license to Springer Nature Switzerland AG
About this paper
Cite this paper
Romanazzi, V., Leone, M., Aiello, M.A., Maddaloni, G., Pecce, M.R. (2024). Bond Strength of Geopolymer Concrete with Steel and GFRP Bars. In: di Prisco, M., Menegotto, M. (eds) Proceedings of Italian Concrete Conference 2020/21. ICC 2021. Lecture Notes in Civil Engineering, vol 351. Springer, Cham. https://doi.org/10.1007/978-3-031-37955-0_9
Download citation
DOI: https://doi.org/10.1007/978-3-031-37955-0_9
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-031-37954-3
Online ISBN: 978-3-031-37955-0
eBook Packages: EngineeringEngineering (R0)