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      Sifat Mekanis Kayu Pinus (Pinus merkusii Jungh. et de Vriese) Berbagai Strain Asal Sumatera

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      Date
      2022
      Author
      Amini, Najma
      Karlinasari, Lina
      Nugroho, Naresworo
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      Abstract
      Pinus (Pinus merkusii) merupakan salah satu jenis kayu yang banyak digunakan oleh industri perkayuan di Indonesia. Berdasarkan sebaran alaminya, pinus berada pada tiga lokasi di wilayah Sumatera, yaitu Aceh, Tapanuli, dan Kerinci. Pengujian sifat mekanis dapat dipengaruhi oleh beberapa faktor seperti teknik silvikultur dan kedalaman kayu dalam satu log. Penelitian ini bertujuan menganalisis sifat mekanis akibat perbedaan teknik silvikultur, bentuk spesimen, serta kedalaman kayu pada tiga strain pinus asal Sumatera. Pengujian sifat mekanis dilakukan menggunakan metode non destruktif dan destruktif. Faktor teknik silvikultur, faktor spesimen uji, faktor posisi transduser, dan kedalaman kayu serta interaksinya tidak memberikan pengaruh terhadap nilai yang dihasilkan pada pengujian non destruktif. Faktor teknik silvikultur dan kedalaman kayu, serta interaksinya tidak berpengaruh nyata terhadap nilai sifat mekanis yang dihasilkan pada pengujian destruktif. Namun demikian pada pengujian lentur statis, faktor kedalaman kayu berpengaruh terhadap nilai yang dihasilkan. Hal itu kemungkinan terjadi karena adanya perbedaan nilai kerapatan dan berat jenis pada sampel uji lentur statis di bagian gubal dan terasnya.
       
      Pine (Pinus merkusii) is one type of wood that is widely used by the wood industry in Indonesia. Based on its natural distribution, pine is located in three locations in Sumatra, namely Aceh, Tapanuli, and Kerinci. Mechanical testing can be affected by several factors such as silvicultural techniques and wood depth in one log. This study aimed to analyze the mechanical properties due to difference silvicultural techniques, specimen, and wood depth in three strains from Sumatera. Mechanical properties test is carried out using non-destructive and destructive methods. The silvicultural technique factor, the specimen factor, the transducer position factor, and the depth of the wood and their interactions did not affect the value in the non-destructive test. Silvicultural technique factors and wood depth, as well as their interactions have no significant effect on the value of the mechanical properties in the destructive test. Furthermore, the wood depth factor affects the resulting value on the static bending test. This may be due to differences in the density and specific gravity values of the static bending test samples in the sapwood and heartwood.
       
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      http://repository.ipb.ac.id/handle/123456789/115036
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      Copyright © 2020 Library of IPB University
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      Indonesia DSpace Group 
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