Abstract
Within the scope of the “NG_TPfib” R&D project, Exporplás and CiviTest have, in the recent past, developed a new typology of polypropylene fibers for the production of urban furniture of high durability by eliminating conventional steel reinforcements susceptive to corrosion. This reinforcement replacement strategy also allows the development of lighter and more elegant urban furniture with complex geometries at competitive costs, giving possibility for new generation of elements of added architectural and sculptural value.
This paper describes the beginning research carried out for the development and production of this type of furniture and presents the main results obtained in the development of the material. In this context, the mechanical properties and some durability indicators of the material were characterized. Due to the prefabrication nature of the production technique adopted for this type of urban furniture, special care was done on the evaluation of the early age properties of this composite, mainly the post-cracking tensile capacity. For this purpose the evolution of the compressive strength and elasticity modulus were evaluated from standard compression tests, while inverse analysis with the results obtained in 3-point notched beam bending tests at different ages have provided the evolution of the post-cracking tensile capacity of this composite. For assessing some relevant aspects of the durability of this composite, its permeability by immersion and by capillarity was evaluated, as well as the influence of the chloride penetration by dry–wet cycles on the its post-cracking resistance. The present paper describes the experimental programs carried out and presents and discusses the relevant results.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Tan, K.-H., Paramasivam, P., Tan, K.-C.: Cracking characteristics of reinforced steel fiber concrete beams under short- and long-term loadings. Adv. Cem. Based Mater. 2, 127–137 (1995). https://doi.org/10.1016/1065-7355(95)90013-6
Altoubat, S.A., Lange, D.A.: Creep, shrinkage and cracking of restrained concrete at early age. Urbana 51, 61801 (2001)
Mohammadi, Y., Singh, S.P., Kaushik, S.K.: Properties of steel fibrous concrete containing mixed fibres in fresh and hardened state. Constr. Build. Mater. 22, 956–965 (2008). https://doi.org/10.1016/j.conbuildmat.2006.12.004
Yazıcı, Ş, İnan, G., Tabak, V.: Effect of aspect ratio and volume fraction of steel fiber on the mechanical properties of SFRC. Constr, Build. Mater. 21, 1250–1253 (2007). https://doi.org/10.1016/j.conbuildmat.2006.05.025
Frazão, C., Barros, J., Bogas, J.A., Pilakoutas, K.: An experimental investigation on the post-cracking behaviour of Recycled Steel Fibre Reinforced Concrete. In: 3rd FRC International Workshop Fibre Reinforced Concrete: from Design to Structural Applications. Desenzano del Garda, Italy, p. 10 (2018)
Conforti, A., Minelli, F., Plizzari, G.A.: Wide-shallow beams with and without steel fibres: a peculiar behaviour in shear and flexure. Compos. Part B Eng. 51, 282–290 (2013). https://doi.org/10.1016/j.compositesb.2013.03.033
Kwak, Y.-K., Eberhard, M.O., Kim, W.-S., Kim, J.: Shear strength of steel fiber-reinforced concrete beams without stirrups. ACI Struct. J. 99, 530–538 (2002)
Lourenço, L., Barros, J.A., Santos, S.P.F.: High strength and ductile fibrous concrete of enhanced fire resistance. FEUP, Porto, Portugal (2007)
Lourenço, L.: Betão reforçado com fibras: aplicações e técnicas de inspeção e reforço de elementos estruturais afetados pela ação de um fogo. PhD Thesis, University of Minho, Guimarães, Portugal, 267 pages (2013) (in Portuguese)
NP EN 12390-3: Testing hardened concrete—Part 3: compressive strength of test specimens. IPQ, Caparica, Portugal (2011)
NP EN 12390-13: Testing hardened concrete—Part 13: determination of secant modulus of elasticity in compression. IPQ, Caparica, Portugal (2014)
EN 14651 (2005) + A1 (2007) Test method for metallic fibre concrete. Meauring the flexural tensile strength (limit of proportionality (LOP), residual). CEN, Brussels
LNEC E394: Concrete. Determination of water absorption by immersion – test at atmospheric pressure. LNEC, Lisbon, Portugal (1993)
Frazão, C., Camões, A., Barros, J., Gonçalves, D.: Durability of steel fiber reinforced self-compacting concrete. Constr. Build. Mater. 80, 155–166 (2015)
Pedro, D., de Brito, J., Evangelista, L.: Influence of the Crushing Process of Recycled Aggregates on Concrete Properties. Key Eng. Mater. 634, 151–162 (2015)
Zhang, S.P., Zong, L.: Evaluation of relationship between water absorption and durability of concrete materials. Adv. Mater. Sci. Eng. ID 650373, 8 pages (2014)
LNEC E393: Concrete. Determination of water absorption by capillarity. LNEC, Lisbon, Portugal (1993)
Coutinho, M.: Melhoria da durabilidade dos betões por tratamento da cofragem. PhD Thesis, FEUP, Porto, Portugal, 392 pages (1998) (in Portuguese)
Bertolini, L., Elsener, B., Pedeferri, P., Polder, R.P.: Corrosion of Steel in Concrete—Prevention, Diagnosis, Repair, 1st edn., pp. 21–36. Wiley-VCH, Weinheim, Germany (2004)
Acknowledgements
This work is supported by the European Regional Development Fund (FEDER) through the Competitiveness and Internationalization Operational Program—COMPETE under the NG_TPfib project POCI-01-0247-FEDER-033719.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2021 The Author(s), under exclusive license to Springer Nature Switzerland AG
About this paper
Cite this paper
Melo, F. et al. (2021). Urban Furniture in Fiber Reinforcement Concrete with High Durability. In: Valente, I.B., Ventura Gouveia, A., Dias, S.S. (eds) Proceedings of the 3rd RILEM Spring Convention and Conference (RSCC 2020). RSCC 2020. RILEM Bookseries, vol 33. Springer, Cham. https://doi.org/10.1007/978-3-030-76551-4_40
Download citation
DOI: https://doi.org/10.1007/978-3-030-76551-4_40
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-76550-7
Online ISBN: 978-3-030-76551-4
eBook Packages: EngineeringEngineering (R0)