Strength and Durability of Kenaf Fiber Reinforced Concrete for Marine Structures
DOI:
https://doi.org/10.46754/umtjur.v1i1.57Keywords:
Compressive strength, Kenaf fiber, reinforced concrete, seawater, water absorptionAbstract
Nowadays, Kenaf fiber is sustainably useful in marine structures and has become one of the materials that may be high in demand as it is light, biodegradable and environmental friendly. This study investigates the effect of fiber percentage on compressive strength of fiber reinforced concrete (FRC) and the relationship between compressive strength and time of FRC immersion in seawater. FRC concrete cubes were prepared using four different percentage of fiber (0%, 1.5%, 3.0% and 4.5%). These FRC were immersed in seawater for 7, 14 and 21 days for three consecutive weeks. Based on the experiment, it was found that there was improvement in compressive strength of FRC when compared to plain cement concrete. The results showed that 3.0% of KF to cement matrix concrete determined the highest compressive strength of 205.43 Pa while 0% of KF fiber to cement concrete matrix (control specimen) showed the lowest compressive strength of 158.28 Pa. Also the addition of Kenaf fiber to cement concrete decreased the seawater absorption more than concrete with absolutely 0% of KF fiber to cement concrete (control specimen). In conclusion, the results did show significant improvement and a consistent trend on strength with the addition of FRC. This study also revealed that the percentage of water absorption was on the increase for 0, 7 and 14 days and become constant after day 21. This is due to manufacturing defects that occurred which block the water from entering the material and making the material absorb less water.
References
"Standard Test Method for Tension-Tension Fatigue of Polymer Matrix Composite Materials," in Annual Book of ASTM Standards, ed, 2012.
A. N. Towo and M. P. Ansell (2008). Fatigue evaluation and dynamic mechanical thermal analysis of sisal fibre–thermosetting resin composites. Composites Science and Technology, vol. 68, pp. 925-932.
ACI Committee 544, Measurement of Properties of Fiber Reinforced Concrete, (ACI 544.2R-78), American Concrete Institute, Detroit, 7 p. (1978).
ACI Committee 544, Measurement of Properties of Fiber Reinforced Concrete, (ACI 544.2R-78), American Concrete Institute, Detroit, 7 p. (1978)
Bergströn, Sven G., Hans-Erik Gram. (1984). Durability of alkali-sensitive fibres in concrete. The International Journal of Composites and Lightweight Concrete, London, v. 6, n. 2, May, p. 75-80. 1984.
Brandt, A. (1995). Reinforcement of cement-based composites. In Cement-based composites: Materials, mechanical properties and performance. London: E & FN Spon.
Canovas, M. F.; Selva, N.H.; Kawiche, G.M. (1992). New economical solutions for improvement or durability of Portland mortars reinforced with sisal fibres. Materials and Structures, Paris, v. 25, p. 417-422.
Craig, R.J. (1984). Structural Applications of Reinforced Fibrous Concrete, ACI Concrete International, 6(12): 28-323.
Kannan Rassiah and M.M.Megat Ahmad (2012). A review on Mechanical Properties of Bamboo Fiber Reinforced Composite, Australian Journal of Basic and Applied Sciences, pg247-253
Maurizio Avella, Review of Eco-Challenges of Bio-Based Polymer Composites, ISSN Materials journals, 2009, pg911-925
Meyyappan, P., Sivapragasam, C., Sekar, T., & Marimuthu, K. (n.d.). Suitability of Composite Material in Tsunami Resistant Design. Aquatic Procedia, 397-403.
Naaman, A.E. (1985). Fiber Reinforcement for Concrete, ACI Concrete International, 7(3): 21-25.
Naaman, A.E., Fiber Reinforcement for Concrete, ACI Concrete International, 7(3): 21-25 (March, 1985).
Nishino T., Hirao K., Kotera M., Nakamae K. and Inagaki H. (2003). Kenaf reinforced biodegradable composite. Compos Sci Technol, Vol. 63, pp. 1281- 86.
Papathanasiou,, T., & Guell, D. (1997). Flow induced alignment in composite material. Abington hall, Abington: Woodhead publishing.
Ramualdi, J.P. and Batson, G.B. (1983). The Mechanics of Crack Arrest in Concrete, Journal of the Engineering Mechanics Division, ASCE, 89:147-168.
Ramualdi, J.P. and Batson, G.B. (1983). The Mechanics of Crack Arrest in Concrete, Journal of the Engineering Mechanics Division, ASCE, 89:147-168.
S. Shah, A. Patil, Ramachandran. M, K. Kalita. (2007). “Effect of coal ash as a filler on mechanical properties of glass fiber reinforced material.” Int. J. of Applied Engineering Research (IJAER), Volume 9, Issue 22.
Schutter, G., &Audenaert, K. (2004).Evaluation of water absorption of concrete as a measure for resistance against carbonation and chloride migration.Materials and Structures, 37, 591-596.
