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  • Open Access


    Dynamic Behaviour of Pond Ash Mixed with Coir and Crumb Rubber

    Ashish Malik*, Sanjay Kumar Singh

    Journal of Renewable Materials, Vol.11, No.3, pp. 1271-1291, 2023, DOI:10.32604/jrm.2022.023084

    Abstract An experimental program was conducted to determine the dynamic properties of pond ash (PA) and pond ash mixed with admixtures like crumb rubber (CR) and coir fiber (CF) which are wastes of different industries. Additives CR and CF were mixed separately with pond ash in a percentage ranging from 0%–20% at an interval of 5% and 0%–2% at an interval of 0.5% by weight of pond ash, respectively. Dynamic properties (Shear modulus, Number of cycles to initiate liquefaction, Degradation index and Damping ratio) for pond ash mixes were determined using strain-controlled cyclic tri-axial apparatus. The shear strain was kept constant… More >

  • Open Access


    Experimental Investigation on the Mechanical Properties of Natural Fiber Reinforced Concrete

    Ismail Shah1,2, Jing Li1,2,*, Shengyuan Yang1, Yubo Zhang1, Aftab Anwar1,2

    Journal of Renewable Materials, Vol.10, No.5, pp. 1307-1320, 2022, DOI:10.32604/jrm.2022.017513

    Abstract Recently, addition of various natural fibers to high strength concrete has aroused great interest in the field of building materials. This is because natural fibers are much cheaper and locally available, as compare to synthetic fibers. Keeping in view, this current research conducted mainly focuses on the static properties of hybridized (sisal/coir), sisal and coir fiber-reinforced concrete. Two types of natural fibers sisal and coir were used in the experiment with different lengths of 10, 20 and 30 mm and various natural fiber concentrations of 0.5%, 1.0%, and 1.5% by mass of cement, to investigate the static properties of sisal… More > Graphic Abstract

    Experimental Investigation on the Mechanical Properties of Natural Fiber Reinforced Concrete

  • Open Access


    Crystallization and Dynamic Mechanical Behavior of Coir Fiber Reinforced Poly(Butylene Succinate) Biocomposites

    Xu Yan1, Changheng Liu2, Liang Qiao1, Kaili Zhu2, Hongsheng Tan1,*, Shuhua Dong1, Zhitao Lin1

    Journal of Renewable Materials, Vol.10, No.4, pp. 1039-1048, 2022, DOI:10.32604/jrm.2022.017239

    Abstract The crystallization behavior, crystal morphology and form, and viscoelastic behavior of poly(butylene succinate) (PBS) and coir fiber/PBS composites (CPB) were investigated by differential scanning calorimetry (DSC), polarized optical microscopy (POM), X-ray diffraction (XRD) and dynamic mechanical analysis (DMA). The results of DSC measurement show that the crystallization temperature increases with the filling of coir fibers. POM images reveal that the spherulitic size and crystallization behavior of PBS are influenced by the coir fibers in the composites. XRD curves show that the crystal form of pure PBS and CPB are remaining almost identical. In addition, the storage modulus of CPB significantly… More >

  • Open Access


    Conceptual Design of Glass/Renewable Natural Fibre-Reinforced Polymer Hybrid Composite Motorcycle Side Cover

    M. A. F. A. Wahab1, S. M. Sapuan1,2,*, M. M. Harussani1, M. Y. M. Zuhri1, A. A. Saleh3

    Journal of Renewable Materials, Vol.9, No.11, pp. 1973-1989, 2021, DOI:10.32604/jrm.2021.016221

    Abstract This paper presents the development process relating to the conceptual design of glass/renewable natural fibrereinforced polymer hybrid composite motorcycle side cover. Motorcycle side cover is a component frequently made from plastic or steel that functions on covering the motorcycle parts, components and systems such as frame, battery, electrical systems and mechanical systems. Function Analysis Systems Techniques (FAST) is used to identify the functions of motorcycle side cover. The right-side cover of motorcycle model SYM E-Bonus 110 has been physically studied to identify the competitive benchmarking criteria. The functions and competitive benchmarking criteria are then compiled and integrated with the environmental… More >

  • Open Access


    Evaluation of Mechanical and Physical Properties of Pressed Coir Fiber/Epoxy Composite with NaOH and Microwave Treatment of Fiber

    Ilyas Renreng1, Bakri Bakri2,*, Sri Chandrabakty2, Naharuddin2

    Journal of Renewable Materials, Vol.9, No.2, pp. 325-335, 2021, DOI:10.32604/jrm.2021.012774

    Abstract In this study, the influence of sodium hydroxide (NaOH) treatment and microwave treatment of coir fibers on the mechanical and physical properties of pressed coir fiber/epoxy composite were evaluated. The composite was fabricated with a hand lay-up method with compression molding. Before composite fabrication, pressed coir fiber was treated with NaOH and microwave treatments. Mechanical testing (tensile, flexural, and impact testing) of the composite was conducted. Then, water absorption and thickness swelling testing are also performed. The fractured composite surface morphology after the tensile test was analyzed by scanning electronic microscopy (SEM). The results revealed that tensile, flexural, and impact… More >

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