RELATIONSHIPS BETWEEN MECHANICAL PROPERTIES (COMPRESSIVE STRENGTH) AND PHYSICAL PROPERTIES (POROSITY) AT HIGH TEMPERATURES

Ilhem Sahnoun, Zhour Guemmadi, Belkacem Toumi

Abstract


Introduction: This research is a part of a broader study on the evolution of concrete properties when exposed to high temperatures. It aims to analyze the behavior of ordinary concretes at elevated temperatures, incorporating either organic or synthetic fibers in the same dosage. Metods: Three concrete compositions were formulated: plain concrete without fibers (CO1), polypropylene fiber-reinforced concrete (CFP), and chicken feather fiber-reinforced concrete (CFC1), with both fiber-reinforced types containing an identical fiber dosage of 0.9 %. The prepared specimens were subjected to a heating-cooling cycle at 150 °C, 300 °C, 450 °C, and 600 °C, with a heating rate of 1 °C per minute. The residual physical and mechanical properties of the different concretes were then analyzed. Results: The concretes studied exhibited similar initial mechanical properties. However, the concrete reinforced with chicken feather fibers demonstrated superior residual physical and mechanical performance compared to the other concretes. Overall, the residual mechanical performance of the fiber-reinforced concretes was greater than that of the plain concrete, confirming the positive contribution of fibers to strength retention at temperatures up to 600 °C. Finally, a correlation between compressive strength and porosity was established for the three concrete types. This correlation provides a reliable method for estimating the compressive strength of concreted containing different types of fibers when exposed to high temperatures.

Keywords


ordinary concrete; chicken feather fibers; polypropylene fibers; high temperature; compressive strength– porosity correlation.

Full Text:

PDF

References


Abdelsamie, K., Agwa, I. S., Tayeh, B. A., and Hafez, R. D. A. (2021). Improving the brittle behaviour of high-strength concrete using keratin and glass fibres. Advances in Concrete Construction, Vol. 12, No. 6, pp. 469–477. DOI: 10.12989/acc.2021.12.6.469.

Adetola, S. O., Oladoyinbo, T. S., Alao, T. B., Adeleke, Y. M., and Alao, A. J. (2021). Investigative study of chicken feather and synthetic hair fibre on mechanical and microstructural properties of interlocking concrete block. LAUTECH Journal of Civil and Environmental Studies, Vol. 7, No. 2, pp. 1–11. DOI: 10.36108/laujoces/1202.70.0210.

Bidossessi, A. and Prosper, P. (2010). Contribution of polypropylene and metal fibres to the improvement of the behaviour of concrete subjected to a high temperature. DSc Thesis .Bidossessi.A, Prosper.P (2010). Contribution des fibres de polypropylène et métalliques à l’amélioration du comportement du béton soumis à une température élevée. PhD thesis of the University of Cergy-Pontoise.

Cheng, A. S., Yen, T., Liu, Y.-W., and Sheen, Y.-N. (2008). Relation between porosity and compressive strength of slag concrete. In: Structures Congress 2008: Crossing Borders, Vancouver, British Columbia, Canada, April 24–26, 2008. DOI: 10.1061/41016(314)310.

Erniati, Tjaronge, M. W., Zulharnah, and Irfan, U. R. (2015). Porosity, pore size and compressive strength of self compacting concrete using sea water. Procedia Engineering, Vol. 125, pp. 832–837. DOI: 10.1016/j.proeng.2015.11.045.

Dreux, G. and Festa, J. (1998). New guide to concrete and its constituents. 8th ed. Paris: Eyrolles. 416 p.

Hachemi, S. (2015). Study of the behavior of concrete subjected to high temperature: Influence of the type of concrete and the nature of the constituents. DSc Thesis in Civil Engineering.

Hamoush, S. A. and El-Hawary, M. M. (1994). Feather fiber reinforced concrete. Concrete International, Vol. 16, Issue 6, pp. 33–35.

Hassiba, R. (2019). The influence of fibre types on the behaviour of high temperature concrete. DSc Thesis in Civil Engineering. Hassiba, R. (2019). L’influence des types de fibres sur le comportement du béton.à haute température. Doctoral thesis of the University Mohamed khaider Biskra, Algeria.

Kanéma, M. (2007). Influence of formulation parameters on the high temperature behaviour of concretes. PhD Thesis.

Kanéma, M. (2007). Influence des paramètres de formulation sur le comportement à haute température des bétons. Doctoral thesis of University of Cergy-Pontoise.

Menandro, N. (2010). Waste chicken feather as reinforcement in cement-bonded composites. Philippine Journal of Science, Vol. 139, No. 2, pp. 161–166.

Nonna, Y. (2015). Comportement à hautes températures des bétons additionnés de fibres. Doctoral thesis of University of Cergy-Pontoise.

Noumowe, A. (2005). Mechanical properties and microstructure of high strength concrete containing polypropylene fibres exposed to temperatures up to 200 °C. Cement and Concrete Research, Vol. 35, Issue 11, pp. 2192–2198. DOI: 10.1016/j.cemconres.2005.03.007.

Noumowe, A. N., Siddique, R., and Debicki, G. (2009). Permeability of high-performance concrete subjected to elevated temperature (600°C). Construction and Building Materials, Vol. 23, Issue 5, pp. 1855–1861. DOI: 10.1016/j.conbuildmat.2008.09.023.

Pliya, P. (2010). Contribution des fibres de polypropylène et métalliques à l’amélioration du comportement du béton soumis à une température élevée. Doctoral thesis of the University of Cergy-Pontoise (2010).

RILEM (1995). RILEM TC 129-MHT. Test methods for mechanical properties of concrete at high temperatures. Part 1: introduction. Part 2: Stress–strain relation. Part 3: Compressive strength for service and accident conditions. Materials and Structures, Vol. 28 (181), pp. 410–414.

Sahnoun, I. and Toumi, B. (2024). Thermomechanical behaviour of concrete reinforced with synthetic and organic fibers. [online] Available at: https://www.researchsquare.com/article/rs-3978063/v1 [Access Date: February 26, 2024].


Refbacks

  • There are currently no refbacks.




     

ISSN: 2500-0055