American Journal of Construction and Building Materials
Volume 4, Issue 1, June 2020, Pages: 22-26
Received: Mar. 22, 2020;
Accepted: Apr. 3, 2020;
Published: May 15, 2020
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Henock Eshetu Aweke, Department of Civil Engineering, (Construction Technology and Management), Addis Ababa Science and Technology University, Addis Ababa, Ethiopia
Tesfaye Alemu Mohammed, Department of Civil Engineering, (Structural Engineering), Addis Ababa Science and Technology University, Addis Ababa, Ethiopia
In addition to the economic advantages, using fly ash in cement has enormous effect on the mechanical properties of the concrete. Moreover, Researchers have identified that the addition of fibers to concrete increases its mechanical properties. Therefore, Better concrete product using both fly ash and fibers especially natural fibers which are more economical and eco-friendlier than the other fibers for an improved concrete strength production is the major aim of this research. This experimental investigation had been undertaken to study a fly ash concrete reinforced with bamboo fibers. The optimum percentage of fly ash to replace cement was first determined by compressive strength test for different percentages by weight of fly ash substitution. After that, mechanical properties of the fly ash concrete were studied with the addition of three different percentages of bamboo fibers. Mix designs were formulated for all percentage and then, Specimens were casted and tested for computing compressive strengths, indirect tensile strengths and flexural strengths for 7th and 28th day period. In the experiments, non-fibrous 25% fly ash substituted with cement concrete (the optimum percentage which was first determined using compressive strength) were compared with the 25% flyash substituted with cement for the individual fibers percentages. The standard 150mm cube compressive strength of bamboo fiber reinforced Fly Ash Concrete (BFRFAC) with 0.10% addition of bamboo fiber by weight of concrete showed an increment of 12.44%, Whereas bamboo fiber reinforced Fly Ash Concrete with 0.2% and 0.30% addition of bamboo fiber by weight of concrete showed a compressive strength reduction of 9.33% and 33.03% respectively compared to non-fibrous fly ash concrete. Bamboo fiber reinforced Fly Ash Concrete with 0.10% and 0.20% bamboo fiber addition by weight of concrete showed an increment in mean split tensile strength of 5.81% and 0.12% respectively; whereas 0.30% additions of bamboo fiber by weight of concrete showed split tensile strength reduction of 14.54% compared to non-fibrous fly ash concrete. Mean Flexural strength of bamboo fiber reinforced Fly Ash Concrete with 0.10%, 0.20% and 0.30% addition of bamboo fiber by weight of concrete showed an increment by 2.48%, 5.98% and 7.80% compared to non-fibrous fly ash concrete respectively.
Henock Eshetu Aweke,
Tesfaye Alemu Mohammed,
The Mechanical Properties of Fly Ash Concrete Reinforced with Bamboo Fibers, American Journal of Construction and Building Materials.
Vol. 4, No. 1,
2020, pp. 22-26.
Mustard, J. N. and MacInnis, C., "The Use of Fly Ash in Concreteby Ontario Hydro." Engineering Journal, December, 1959, pages 74 to 79.
J. Payá, J. Monzó, M. V. Borrachero, L. Díaz-Pinzón, and L. M. Ordónez, “Sugar-cane bagasse ash (SCBA): Studies on its properties for reusing in concrete production,” J. Chem. Technol. Biotechnol., vol. 77, no. 3, pp. 321–325, 2002.
P. Mehta and P. J. Monteiro, Concrete: Microstructure, Properties and Materials. 2006.
Dr. Shakel Ahmad, Altamash Raza and Hina Gupta, “Mechanical Properties of Bamboo Fiber Reinforced Concrete”.
State-of-the-Art Report on Fiber Reinforced Concrete, reported by ACI committee 544 (ACI 544.1R-96), Reapproved 2002.
Dr. Nataraja M. C. “Fiber Reinforced Concrete-Behaviour Properties and Application” Professor of Civil Engineering, Sri Jayachamarajendra College of engineering, Mysore-570, 2006.
Gebler, S. H. and Klieger, P., “Effect of Fly Ash on the Durability of Air-Entrained Concrete,” Proceedings of the 2nd International Conference on Fly Ash, Silica Fume, Slag, and Natural Pozzolans in Concrete, ACI SP-91, Vol. 1, American Concrete Institute, Farmington Hills, MI, 1986, pages 483 to 519.
Pistilli, M. F., “Air-Void Parameters Developed by Air-Entraining Admixtures as Influenced by Soluble Alkalis from Fly Ash and Portland Cement,” ACI Journal, Proceedings V. 80, No. 3, May-June, 1983, pages 217 to 222.
Malhotra, V. M. and Mehta, P. K., High-Performance, High-Volume Fly Ash Concrete. Supplementary Cementing Materials for Sustainable Development Inc., Ottawa, Canada, 2005, 124 pages.
Bamforth, P. B., “In-Situ Measurement of the Effect of Partial Portland Cement Replacement Using Either Fly Ash or Ground-Granulated Blastfurnace Slag on the Performance of Mass Concrete,” Proceedings of the Institution of Civil Engineers, Part 2, Vol. 69, September, 1980, pages 777 to 800.
Lane, R. O., and Best, J. F., “Properties and Use of Fly Ash in Portland Cement Concrete,” Concrete International, V. 4, No. 7, 1982, pages 81 to 92.
Yuan, R. L. and Cook, R. E., "Study of a Class C Fly Ash Concrete", Proceeding of the First International Conference on the Use of Fly Ash, Silica Fume, Slag, and Other By-Products in Concrete, ACI SP-79, Vol. 1, American Concrete Institute, Detroit, MI, 1983, pages 307 to 319.
Ghosh, R. S. and Timusk, J., "Creep of Fly Ash Concrete", ACI Journals, Vol. 78, No. 5, Sep-Oct. 1981, pages 351 to 357.
Tesfaye Reta Degefa.,”study on Mechanical Properties of Bamboo Fiber Reinforced Concrete”, April 2017.
Rooban Chakravarthy Sethu Mathavan.,”High volume Flyash Concrete Reinforced with Hybrid Fibers”, December 2016.