Mechanical Properties of Polyolefin Fiber-Reinforced Light Weight Concrete
Abstract
The utilization of polyolefin fibers in reinforced concrete can potentially enhance the properties of the concrete by changing the interfacial properties of the fiber-matrix interface. The objective of this research was to determine the mechanical properties of polyolefin fiber reinforced lightweight concrete (LWC). Compressive, flexural, and splitting tensile strengths of the sample were measured. Polyolefin fibers were added to the reinforced composite in variable amounts (0-2%). The lightweight concrete was designed to achieve compressive strength target of at least 30 MPa with a density value of 1800 kg/m3 after 28 days of storage. The results showed that the highest compressive strength was obtained in LWC containing 1% fiber led to an increase of about 8%. However, a reduction in compressive strength was observed when the amount of fiber was increased. Moreover, increasing the amount of fiber presented a growth in rupture modulus as well as splitting tensile strength.
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References
Colangelo, S, Cioffi, R, Liguori, B, Iucolano, F. “Recycled polyolefins waste as aggregates for lightweight concrete”, Composites Part B 106, (2016), 234-241.
Chandra, S, Berntsson, L,”Light weight aggregate concrete”, Elsevier, 2002.
Brandt A. “Fiber reinforced cement-based (FRC) composites after over 40 years of development in building and civil engineering”, Compos Structure 2008; 86(1–3):3–9.
Ivorra S, Garces P, Catala G, Andion LG, Zornoza E. “Effect of silica fume particle size on mechanical properties of short carbon fiber reinforced concrete”, Mater Des 2010; 31(3):1553–8.
Han, T-Y, Lin, W-T, Cheng, A, Huang, R, Huang, C-C. “Influence of polyolefin fibers on the engineering properties of cement-based composites containing silica fume”, Mater Des 2012; 37: 569–76.
Vandewalle, L, “Postcracking behaviour of hybrid steel fiber reinforced concrete”, In Fracture Mechanics of Concrete and Concrete Structures– FraMCoS, in: Proceedings of the 6th International Conference, Catania, Italy, 2007, pp. 17–22.
Yao, W, Li, J, Wu, K,” Mechanical properties of hybrid fiber-reinforced concrete at low fiber volume fraction”, Cem. Concr. Res. 33 (1) (2003) 27–30.
Pakravan, H.R, Latifi, M, Jamshidi, M,“Hybrid short fiber reinforcement system in concrete: A review”, Construction and Building Materials 142 (2017) 280–294.
Alberti, MG, Enfedaque, A, Galvez, JC. “On the mechanical properties and fracture behavior of polyolefin fiber-reinforced self-compacting concrete”, Constr Build Mater 2014; 55(31):274–88.
Behfarnia, K, Behravan, A. “Application of high performance polypropylene fibers in concrete lining of water tunnels”, Mater Des 2014; 55: 274–9.
Wolfgang, H, Naaman, A,”High performance fiber reinforced cement composites”, 3rd International RILEM Workshop.
Tagnit, A, Vanhove, Y, Petrov, N,” Microstructural analysis of the bond mechanism between polyolefin fibers and cement pastes”, Cement and concrete research, Vol 35, pp 364-370, 2005.
Ramakrishnan, V., “Performance characteristics of polyolefin fiber reinforced concrete”, Proceedings of the Materials Engineering Conference: Materials for the New Millennium, 1: pp. 93-102, 1996.
DOI: 10.21859/cej-030912
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