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  • Open Access


    Compression Behaviors of Parallel Bamboo Strand Lumber Under Static Loading

    Haitao Li1,2,*, Zhenyu Qiu2, Gang Wu1,*, Dongdong Wei3, Rodolfo Lorenzo4, Conggan Yuan3, Huizhong Zhang1,2, Rong Liu1,2

    Journal of Renewable Materials, Vol.7, No.7, pp. 583-600, 2019, DOI:10.32604/jrm.2019.07592

    Abstract In order to investigate the influence of length and compression directions upon behaviour of parallel bamboo strand lumber (PBSL) specimens, 240 axial compression tests have been performed. With three similar one different typical failure modes, the mechanical performance for PBSL specimens under compression parallel to grain and perpendicular to grain are different as a whole. From the point of the characteristic values, the compression strength parallel to grain is 2.1 times of the compression strength perpendicular to grain. The elastic modulus for compression parallel to grain is 3.64 times of the compression strength perpendicular to… More >

  • Open Access


    Preliminary Study on Tensile and Impact Properties of Kenaf/Bamboo Fiber Reinforced Epoxy Composites

    Ahmad Safwan1, Mohammad Jawaid1*, Mohamed T. H. Sultan1,2, Azman Hassan3

    Journal of Renewable Materials, Vol.6, No.5, pp. 529-535, 2018, DOI:10.7569/JRM.2018.634103

    Abstract The application of natural fibers as reinforcement in composite material has increased due to environmental concerns, low cost, degradability and health concerns. The purpose of this study is to identify the best type of bamboo fibers to be used as reinforcement for kenaf (K)/bamboo hybrid composite. There were three types of bamboo fibers evaluated in this study which include bamboo mat (B), bamboo fabric (BF) and bamboo powder (BP). Chemical composition of B, BF, BP and K fibers were analyzed in this study. The effect of different types of bamboo fibers on tensile, impact, and More >

  • Open Access


    Energy Release Rate Measurement of Welded Bamboo Joints

    Haiyang Zhang1,*, Qian He1, Xiaoning Lu1, A. Pizzi2,3, Changtong Mei1, Xianxu Zhan4

    Journal of Renewable Materials, Vol.6, No.5, pp. 450-456, 2018, DOI:10.7569/JRM.2017.634180

    Abstract Double cantilever beam tests were used to measure the energy release rates of linear vibrational welded moso bamboo joints. The influence of the length of the preserved cracks, the different combinations of the inner and outer bamboo surfaces and the moisture content is studied herein. The experimental compliance method, which is based on linear elastic fracture mechanics and has been shown to be an ideal method, was used to analyze data with the power equation. The results show that the preserved initial crack length does not have a significant effect on the final measured energy More >

  • Open Access


    The Role of Bamboo Nanoparticles in Kenaf Fiber Reinforced Unsaturated Polyester Composites

    Enih Rosamah1, Abdul Khalil H.P.S.2*, S.W. Yap2, Chaturbhuj K. Saurabh2, Paridah M. Tahir3, Rudi Dungani4, Abdulwahab F. Owolabi2

    Journal of Renewable Materials, Vol.6, No.1, pp. 75-86, 2018, DOI:10.7569/JRM.2017.634152

    Abstract In this study, bamboo nanoparticles in concentration ranges from 0–5% were incorporated along with woven/nonwoven kenaf fiber mat into unsaturated polyester and the developed composites were further characterized. Bamboo chips were subjected to ball milling process for the synthesis of nanoparticles with a particle size of 52.92 nm. The effect that the incorporation of nanoparticles had on various properties of reinforced composites was further observed. Due to the high surface area of nanoparticles, incorporation of 3% of nanofillers contributed towards strong bonding and better wettability with matrix, thus resulting in excellent mechanical properties and thermal More >

  • Open Access


    Tailoring the Properties of Thermoplastic Starch with Bamboo Powder and/or Hollow Glass Microspheres

    Liliane Cruz Gomes de Souza Santos1*, Eliane Ayres2, Flávio Renato de Góes Padula1

    Journal of Renewable Materials, Vol.5, No.3-4, pp. 307-312, 2017, DOI:10.7569/JRM.2017.634121

    Abstract In this study, bamboo powder and/or hollow glass microspheres were added to thermoplastic cassava starch in order to overcome its drawbacks. The composites were characterized by scanning electron microscopy (SEM), tensile testing, water contact angle measurement and X-ray diffractometry (XRD), in addition to their thermal properties. The mechanical strength of the composites showed a general decline with increasing bamboo powder content while the water contact angles increased up to 15% of bamboo powder content (% w/w dry starch). The addition of hollow glass microspheres provides an optimal balance between hydrophobicity and mechanical strength. The results More >

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