Febriana Tri Wulandari
Jurusan Kehutanan, Fakultas Pertanian, Universitas Mataram

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Pengaruh Lama Perendaman Dingin dan Konsentrasi Bahan Pengawet Terhadap Pengawetan Kayu Bayur (Pterospermum javanicum) Menggunakan Pengawet Ekstrak Daun Mimba (Azadirachta indica): The Effect of Cold Soaking Duration and Concentration ff Preservatives on Preservation of Bayur (Pterospermum Javanicum) Using Preservative Extract Mimba Leaf (Azadirachta Indica) patriot muslim; Febriana Tri Wulandari; Hairil Anwar
HUTAN TROPIKA Vol 17 No 2 (2022): Volume 17 Nomor 2 Tahun 2022
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v17i2.5235

Abstract

Wood is one of the forest products needed by humans for various uses, including as construction material, crafts, furniture and so on. The solution to save the use of wood by extending the life of the wood through the wood preservation process. The wood used in this study used Bayur wood (Pterospermum javanicum Jungh.). Bayur wood is a typical type of wood from the tropics belonging to durable class IV (easy to rot) which is wood that is easily attacked by wood-destroying organisms such as subterranean termites. Bayur wood grows and develops in secondary forest, with an altitude below 1,000 mdpl (Salmayanti et al., 2013). The aim of this research is:.(1) To determine the effect of immersion time on the value of absorption, retention and penetration of bayur wood preservation. (2) To determine the effect of the concentration of neem leaf extract preservative on the absorption, retention and penetration values ​​of bayur wood preservation. (3) To determine the interaction effect of immersion time and concentration of neem leaf extract preservative on the absorption, retention and penetration values ​​of bayur wood preservation. The results of this study indicate the conclusions that can be drawn as follows: (1) The immersion time has no effect on the value of absorption, theoretical retention, actual retention, and penetration of bayur wood immersion using neem leaf extract. (2) The concentration of preservatives has no effect on the value of absorption, theoretical retention, actual retention, and penetration. (3) The interaction between the length of immersion time and the concentration of preservatives did not affect the value of absorption, theoretical retention, actual retention, and penetration.
Pengaruh Arah Aksial, Keberadaan Buku Dan Ruas Terhadap Kadar Air Dan Berat Jenis Bambu Dikawasan HKm Desa Aik Bual Febriana Tri Wulandari; Radjali Amin
AGRICA Vol. 16 No. 1 (2023): June
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v16i1.2552

Abstract

Among the community, bamboo is well known for its excellent utilization, starting from its sturdy, resilient, straight stems, which are easy to split, work with, and shape. In addition, the price of bamboo is cheaper and easily found in residential areas. One of the bamboo-producing areas found in the West Nusa Tenggara region is the Aik Bual Village HKm. It is known that research related to the physical properties of bamboo has not been carried out in the area. Physical properties become a benchmark in seeing cracks and breaks in bamboo caused by high water content and low specific gravity. This study aims to review the four types of bamboo in the Aik Bual HKm area against the influence of axial direction, the presence of books and internodes, moisture content and specific gravity. Fresh water content of petung bamboo, ampel bamboo, string bamboo, galah bamboo: 90,19%; 102,72%; 122,70%; 138,95%. Air dry moisture content of petung bamboo, ampel bamboo, string bamboo, galah bamboo: 12,31%; 13,80%; 12,27%; 11,95. Fresh specific gravity of petung bamboo, ampel bamboo, string bamboo, galah bamboo: 0,63; 0,58; 0,52; 0,49. Air dry specific gravity of petung bamboo, ampel bamboo, string bamboo, galah bamboo: 0,70; 0,71; 0,57; 0,61. Furnace dry specific gravity of petung bamboo, ampel bamboo, string bamboo, galah bamboo as follows: 0,72; 0,70; 0,62; 0,59. Of the four types of bamboo used, it is known that the axial direction, the presence of books and internodes do not have a significant effect on the moisture content and specific gravity.
ANALISIS SIFAT FISIKA DAN MEKANIKA PAPAN LAMINASI KOMBINASI KAYU SENGON BAMBU PETUNG DAN KEMIRI BAMBU PETUNG Febriana Tri Wulandari; Radjali Amin; Dini Lestari
Jurnal Sylva Scienteae Vol 6, No 6 (2023): Jurnal Sylva Scienteae Vol 6 No 6 Edisi Desember 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jss.v6i6.11109

Abstract

Bamboo has various advantages such as relatively cheap price, fast growing, physical and mechanical properties comparable to wood, and suitable for application with existing processing technologies. A combination of wood and bamboo laminated boards is an attractive choice in wood and bamboo processing. Previous studies have shown that testing of physical and mechanical properties has been carried out on laminated boards made from wood or bamboo only. Information regarding laminated boards with a combination of wood and non-timber is still very limited. Laminate boards are made from a combination of sengon-petung bamboo and kemiri-petung wood. The selection of sengon and candlenut wood as raw materials because they have a light specific gravity of 0.4 and 0.33-0. Wood with a light to medium density is very suitable for use as a raw material for laminated boards due to easier penetration of the adhesive onto the wood surface. The aim of this study was to investigate the effect of a combination of petung bamboo sengon wood and petung bamboo candlenut wood on the physical and mechanical properties of laminated boards. The method used was an experimental method with a non-factorial design with 2 treatments and 3 replications. The combined type treatment had no significant effect on the density, thickness expansion, thickness shrinkage and MoR tests, while the MoE and moisture content tests had a significant effect. Testing the physical and mechanical properties, the laminated board combination of candlenut wood and petung bamboo (J2) has a higher value than the combination of sengon wood and petung bamboo (J1). Based on the test results, the combination of the combination of kemiri wood, bamboo petung and sengon wood, bamboo petung is included in the strength class III which can be used for protected heavy construction purposesBambu memiliki berbagai kelebihan seperti harga yang relative murah, cepat tumbuh, memiliki sifat fisika dan mekanika sebanding dengan kayu, dan cocok diaplikasikan dengan teknologi pengolahan yang telah ada. Papan laminasi kombinasi dari kayu dan bambu menjadi pilihan yang menarik dalam pengolahan kayu dan bambu. Penelitian sebelumnya menunjukkan bahwa pengujian sifat fisika dan mekanika telah dilakukan pada papan laminasi berbahan baku kayu atau atau bambu saja.  Informasi mengenai papan laminasi dengan kombinasi kayu dan non kayu masih sangat terbatas. Papan laminasi dibuat dari kombinasi kayu sengon-bambu petung dan kayu kemiri-bambu petung. Pemilihan kayu sengon dan kemiri sebagai bahan baku karena memiliki berat jenis ringan yaitu 0,4 dan 0,33-0. Kayu dengan berat jenis ringan sampai sedang sangat cocok digunakan sebagai bahan baku papan laminasi terkait penetrasi perekat lebih mudah ke permukaan kayu.  Penelitian bertujuan untuk pengaruh kombinasi kayu sengon bambu petung dan kayu kemiri bambu petung  terhadap sifat fisika dan mekanika papan laminasi.  Metode yang digunakan metode eksperimen dengan rancangan non faktorial dengan 2 perlakuan dan 3 kali ulangan. Perlakuan jenis kombinasi berpengaruh tidak nyata pada pengujian kerapatan, pengembangan tebal, penyusutan tebal dan MoR sedangkan pada pengujian MoE dan kadar air berpengaruh nyata. Pengujian sifat fisika dan mekanika maka papan laminasi kombinasi kayu kemiri dan bambu petung (J2) memiliki nilai yang lebih tinggi dibandingkan dengan papan laminasi kombinasi kayu sengon dan bambu petung (J1). Berdasarkan hasil pengujian papan laminasi kombinasi kayu kemiri bambu petung dan kayu sengon bambu petung masuk dalam kelas kuat III yang dapat dimanfaatkan untuk keperluan konstruksi berat yang terlindungi.