Mechanical Strength Performance of Mortar Incorporating Recycled Grass Cutter String Fibre
Keywords:
Compressive, Flexural, Mechanical Properties, Mortar, Recycled Grass Cutter String FibreAbstract
The improper disposal of recycled grass cutter string (RGCS) fibre waste contributes to environmental pollution due to its long degradation period and limited recycling practices. This study investigated the feasibility of utilising RGCS fibre as a sustainable reinforcement material in mortar. Specifically, the effects of fibre length (10, 20, and 30 mm) and fibre volume fraction (0.15%, 0.225%, and 0.30%) on the compressive, splitting tensile, and flexural strengths of mortar were evaluated, and the optimum fibre combination was identified. Mortar specimens incorporating RGCS fibres were prepared and tested in accordance with relevant standards. The results showed that the inclusion of RGCS fibres generally enhanced the splitting tensile and flexural strengths of mortar, while the effect on compressive strength depended on fibre length and content. The highest splitting tensile strength was achieved by mix M2A (20 mm, 0.15%), whereas mix M3A (30 mm, 0.15%) recorded the highest flexural strength. The findings indicate that fibre lengths of 20-30 mm at a volume fraction of 0.15% provide the most favourable overall mechanical performance by improving crack-bridging capability and resistance to crack propagation. This study demonstrates the potential of RGCS fibre as a sustainable alternative reinforcement material for mortar, while promoting the beneficial reuse of nylon waste. The findings can be applied in masonry mortar, plastering works, repair materials, and precast non-structural construction elements.
References
E. R. Gutierrez, D. Ferrandez, S. E. Atanes, and P. M. Ruano, "Physico-mechanical characterization of masonry mortars for sustainable construction: Experimental study with four different aggregates," Sustainability, vol. 16, no. 14, pp. 1–22, 2024, doi: 10.3390/su16146228.
M. A. Younis, A. H. Alhozaimy, S. Guler, Z. F. Akbulut, H. Siad, and M. Lachemi, "Effect of macro polypropylene, polyamide and steel fibers on the residual properties of self-compacting concrete at ambient and elevated temperatures," Construction and Building Materials, vol. 289, 2021, Art. no. 123154, doi: 10.1016/j.conbuildmat.2021.123154.
S. Schutzenhofer, I. Kovacic, H. Rechberger, and S. Mack, "Improvement of environmental sustainability and circular economy through construction waste management for material reuse," Sustainability, vol. 14, no. 17, pp. 1–19, 2022, doi: 10.3390/su141711087.
A. Amjad, Y. Ibrahim, M. A. Jonn, and A. Asaad, "Assessing the impact of recycled building materials on environmental sustainability and energy efficiency: A comprehensive framework for reducing greenhouse gas emissions," Buildings, vol. 14, no. 6, pp. 1–31, 2024, doi: 10.3390/buildings14061566.
A. Taurbekov, B. Kaidar, A. Baltabay, A. Imash, W. B. Ko, J. W. Ko, M. Atamanov, Z. Mansurov, and G. Smagulova, "Valorization of grass clipping waste: A sustainable approach to cellulose extraction and paper manufacturing," Applied Sciences, vol. 14, no. 15, pp. 1–20, 2024, doi: 10.3390/app14156680.
N. Gama, J. Araujo, B. Godinho, A. Ferreira, and A. Barros-Timmons, "Solvolysis of nylon: A pathway to sustainable recycling and circular economy," Sustainability, vol. 16, no. 22, pp. 1–13, 2024, doi: 10.3390/su16229725.
H. J. Qureshi, J. Ahmad, A. Aljabr, and N. Garcia-Troncoso, "Review on characteristics of concrete reinforced with nylon fiber," Journal of Engineered Fibers and Fabrics, vol. 18, pp. 1–15, 2023, doi: 10.1177/15589250231189812.
J. Sunil and M. S. Ravikumar, "Mechanical properties of concrete and hollow concrete blocks containing steel and nylon fibres," International Journal of Engineering and Advanced Technology, vol. 8, no. 6, pp. 3162–3168, 2019, doi: 10.35940/ijeat.F9267.088619.
Z. A. Bhat and A. Bhukal, "Workability and strength properties of nylon fiber reinforced concrete," International Journal for Scientific Research & Development, vol. 9, no. 10, pp. 94–99, 2022.
D. Sharmishtha and G. Ghosh, "A study on nylon fiber reinforced high tensile concrete," International Research Journal of Engineering and Technology, vol. 7, no. 6, pp. 3355–3358, 2020.
A. Vaisakhi, S. Alfiya, K. S. Arathy, E. S. Shahina, and I. Jisha, "Comparative analysis of strength of concrete by using various materials coir fibre, plastic fibre and nylon Fibre," International Journal of Innovative Research in Advanced Engineering, vol. 6, no. 6, pp. 389–395, 2019, doi: 10.26562/IJIRAE.2019.JNAE10082.
K. Manikandan, K. A. Arun, K. M. Deepak, V. Manikandan, and K. K. Sathish, "Experimental investigation on nylon fiber reinforced concrete," International Research Journal of Engineering and Technology, vol. 4, no. 3, pp. 2479–2482, 2017.
B. Singh, C. Ravi, and L. Judith, "Mechanical behaviour of reinforced cement concrete with addition of nylon fibre," International Research Journal of Engineering and Technology, vol. 6, no. 2, pp. 798–801, 2019.
U. Nazmul, S. M. Ashik Al Aziz, and R. Mutsuddy, "Effect of nylon fiber aspect ratio on the mechanical properties of fiber reinforced concrete," in Proc. Int. Conf. Engineering Research, Innovation and Education (ICERIE), Sylhet, Bangladesh, 2021, pp. 147–161.
MS EN 197-1:2014, Cement—Part 1: Composition, Specifications and Conformity Criteria for Common Cements. Selangor, Malaysia: Department of Standards Malaysia, 2014.
BS EN 12620:2002, Aggregates for Concrete. London, U.K.: British Standards Institution, 2002.
BS 882:1992, Specification for Aggregates from Natural Sources for Concrete. London, U.K.: British Standards Institution, 1992.
BS EN 10002-1:2001, Metallic Materials—Tensile Testing—Part 1: Method of Test at Ambient Temperature. London, U.K.: British Standards Institution, 2001.
K. Rajakumar, V. Sarasvathy, A. Thamarai Chelvan, R. Chitra, and C. T. Vijayakumar, "Natural weathering studies of polypropylene," Journal of Polymers and the Environment, vol. 17, pp. 191–202, 2009, doi: 10.1007/s10924-009-0138-7.
K. Blaszczyk and P. Smarzewski, "Influence of hybrid fibers on workability, mechanical and dynamic properties of ultra-high performance concrete," Applied Sciences, vol. 15, no. 10, 2025, Art. no. 5716, doi: 10.3390/app15105716.
S. K. Velumani and S. Venkatraman, "Assessing the impact of fly ash and recycled concrete aggregates on fibre-reinforced self-compacting concrete strength and durability," Processes, vol. 12, no. 8, pp. 1–22, 2024, Art. no. 1602, doi: 10.3390/pr12081602.
BS EN 12390-3:2002, Testing Hardened Concrete—Part 3: Compressive Strength of Test Specimens. London, U.K.: British Standards Institution, 2002.
BS EN 12390-6:2009, Testing Hardened Concrete—Part 6: Tensile Splitting Strength of Test Specimens. London, U.K.: British Standards Institution, 2009.
BS EN 12390-5:2009, Testing Hardened Concrete—Part 5: Flexural Strength of Test Specimens. London, U.K.: British Standards Institution, 2009.
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