Optimization of Flexural Strength and Thermal Conductivity of Mortar Reinforced with Alfa Fibers

Abstract:

This paper focuses on the optimization of flexural strength and thermal conductivity of mortar reinforced with Alfa fibers. Fibers were manually extracted from Alfa leafs to avoid the risk of degradation of mechanical properties. A first group of samples (300 x 300 x 30 mm) having a fiber volume fraction of 0.5 to 1.5% is prepared to measure the thermal conductivity.The second composite family (40 x 40 x 160 mm) cured in a wet chamber is used for measuring its bending strength. The fiber percentage varies from 0.74 to 1,85%.The results show that the thermal conductivity decreases by increasing the fiber content. While the optimal percentage of fiber for the flexural strength is estimated at 1%, corresponding to an increase of 27% in strength.

• Periodical: Applied Mechanics and Materials (Volumes 799-800)
• Pages: 794-799
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.799-800.794
• Online since: October 2015
• Authors: Sebti Jaballi, Imed Miraoui, Hedi Hassis
• Keywords: Alfa Fibers, Flexural Strength, Thermal Conductivity

References

[1] Joshia, S.V., Drzalb, L.T., Mohantyb, A.K., Arorac, S.: Are natural fiber composites environmentally superior to glass fiber reinforced composites? Composites: Part A 35 (2004) 371–376.

DOI: 10.1016/j.compositesa.2003.09.016

[2] Wambua, P., Ivens, J., Verpoest, I.: Natural fibres: can they replace glass in fibre reinforced plastics? Composites Science and Technology 63 (2003) 1259–1264.

DOI: 10.1016/s0266-3538(03)00096-4

[3] Schneider, M., Romer, M., Tschudin, M., Bolio, H.: Sustainable cement production—present and future. Cement and Concrete Research 41 (2011) 642–650.

DOI: 10.1016/j.cemconres.2011.03.019

[4] Silva, F., Zhub, D., Mobasherb, B., Soranakomb, C., Filhoc, R.: High speed tensile behavior of sisal fiber cement composites. Materials Science and Engineering A 527 (2010) 544–552.

DOI: 10.1016/j.msea.2009.08.013

[5] Silva, F., Mobasher, B., Filho, R.: Cracking mechanisms in durable sisal fiber reinforced cement composites. Cement & Concrete Composites 31 (2009) 721–730.

DOI: 10.1016/j.cemconcomp.2009.07.004

[6] Yaoa, W., Lib, Z.: Flexural behavior of bamboo–fiber-reinforced mortar laminates. Cement and Concrete Research 33 (2003) 15–19.

DOI: 10.1016/s0008-8846(02)00909-2

[7] Pacheco-Torgal, F., Jalali, S.: Cementitious building materials reinforced with vegetable fibres: A review. Construction and Building Materials 25 (2011) 575–581.

DOI: 10.1016/j.conbuildmat.2010.07.024

[8] Kriker, A., Bali, A., Debicki, G., Bouziane, M., Chabannet, M.: Durability of date palm fibres and their use as reinforcement in hot dry climates. Cement & Concrete Composites 30 (2008) 639–648.

DOI: 10.1016/j.cemconcomp.2007.11.006

[9] Bahloul, O., Bourzam, A., Bahloul, A.: Utilisation des fibres vegetales dans le renforcement de mortiers de ciment (cas de l'Alfa). 1st International Conference on Sustainable Built Environment Infrastructures in Developing Countries ENSET Oran (Algeria) - October 12-14, (2009).

[10] Rokbia, M., Osmania, H., Imadc, A., Benseddiqd, N.: Effect of Chemical treatment on Flexure Properties of Natural Fiber-reinforced Polyester Composite. Procedia Engineering 10 (2011) 2092–(2097).

DOI: 10.1016/j.proeng.2011.04.346