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The Evaluation of Six Indonesian Hardwood Species According to SNI 7973:2013

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Proceedings of the 5th International Conference on Sustainable Civil Engineering Structures and Construction Materials (SCESCM 2020)

Part of the book series: Lecture Notes in Civil Engineering ((LNCE,volume 215))

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Abstract

In Indonesia, a new timber engineering standard called SNI 7973:2013 was recently introduced to replace the old standard (PKKI 1961) established in 1961. The 1961 standard classified timber products solely based on their species names. Meanwhile, the SNI7973:2013 is designed to distinguish the grades by the respective elastic modulus (MOE) value of the timber yielded from the non-destructive bending test. The objective of this research is then set to employ the given norm as the means to identify the grade of six Indonesian hardwood species, namely Camphor, Nyatoh, Mahogany, Sengon, Meranti, and White Jabon tree originated from Indonesia. Simultaneously, this research also attempts to compare the design values given in the norm and the actual test results according to ASTM D198. A four-point bending test is carried out to examine and compare the values of MOE and bending strength (MOR) of the timbers to achieve such goals. The tests are carried out in accordance with ASTM D198, which states that the MOR obtained from the tests must be adjusted using a specific conversion factor provided by ASTM D1990 to meet the 5-percentile value of forty test results, which is the minimum number of test specimens required by EN384:2004. The results show that the adjusted bending strength is twice as large as the design values provided by the national norm after cross-matching the grade of the timbers to the respective MOE. In conclusion, SNI 7973:2013 has the potential to become the means to identify the proposed six types of timber species, with rather conservative design values that can be safely used during the design stage of timber construction.

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Authors and Affiliations

  1. Department of Civil Engineering, Pelita Harapan University, Tangerang, Indonesia

    Wiryanto Dewobroto, Christian Gerald Daniel, Ricky Weinata Kurniawan & Au Chuenliana Audi

Authors
  1. Wiryanto Dewobroto
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  2. Christian Gerald Daniel
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  3. Ricky Weinata Kurniawan
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  4. Au Chuenliana Audi
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Corresponding author

Correspondence to Christian Gerald Daniel .

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Editors and Affiliations

  1. School of Civil Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam, Selangor, Malaysia

    Sheila Belayutham

  2. School of Civil Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam, Selangor, Malaysia

    Che Khairil Izam Che Ibrahim

  3. School of Civil Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam, Selangor, Malaysia

    Anizahyati Alisibramulisi

  4. School of Civil Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam, Selangor, Malaysia

    Hazrina Mansor

  5. Department of Civil Engineering, Lakehead University, Thunder Bay, ON, Canada

    Muntasir Billah

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Dewobroto, W., Daniel, C.G., Kurniawan, R.W., Audi, A.C. (2022). The Evaluation of Six Indonesian Hardwood Species According to SNI 7973:2013. In: Belayutham, S., Che Ibrahim, C.K.I., Alisibramulisi, A., Mansor, H., Billah, M. (eds) Proceedings of the 5th International Conference on Sustainable Civil Engineering Structures and Construction Materials. SCESCM 2020. Lecture Notes in Civil Engineering, vol 215. Springer, Singapore. https://doi.org/10.1007/978-981-16-7924-7_20

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  • DOI: https://doi.org/10.1007/978-981-16-7924-7_20

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  • Print ISBN: 978-981-16-7923-0

  • Online ISBN: 978-981-16-7924-7

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