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All Journal Daun: Jurnal Ilmiah Pertanian dan Kehutanan Jurnal Hutan Tropika
Yanciluk, Yanciluk
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Agriculture, Biological Sciences & Forestry

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Pengaruh Perlakuan Ekstraksi Terhadap Sifat Fisika dan Mekanika Papan Semen Berbahan Baku Tumbuhan Bamban (Donax canniformis) : The Effect of Extraction Treatment on the Physical and Mechanical Properties of Cement Boards Made from Bamban (Donax canniformis) Luhan, Gimson; Santoso, Mahdi; Putra, Apri Wijaya; Supriyati, Wahyu; Christy, Eva Oktoberyani; Silvianingsih, Yosefin Ari; Yanciluk, Yanciluk
HUTAN TROPIKA Vol 18 No 2 (2023): Volume 18 Nomor 2 Tahun 2023
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v18i2.11961

Abstract

Wood or lignocellulosic materials with high extractives are not recommended for making cement boards. Extraction of raw materials before the cement board manufacturing is a treatment carried out to address this issue. The aim of this research is to determine the influence of cold and hot water extraction treatment on Bamban particles on the quality of the cement boards. This research was conducted by immersion bamban particles on hot water (boiling at 100°C) for 3 hours. The mixture ratio between cement and bamban particles was 1.5:1 (w/w), and it was compressed for 1 hour at a pressure of 30 bar, followed by manual pressure (clamping) for 24 hours. The physical and mechanical properties of cement boards was conducted according to SNI 03-2104-1991 for wood-wool cement boards. The results of the study show that hot water extraction treatment has a very significant effect on the quality of the resulting cement boards.
Kualitas Papan Semen dari Partikel Bamban (Donax canniformis): Quality of Cement Board of Bamban (Donax canniformis) Particles Santoso, Mahdi; Luhan, Gimson; Putra, Apri Wijaya; Christy, Eva Oktoberyani; Silvianingsih, Yosefin Ari; Yanciluk, Yanciluk; Pidjath, Chartina
HUTAN TROPIKA Vol 19 No 1 (2024): Volume 19 Nomor 1 Tahun 2024
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v19i1.14252

Abstract

The aim of this research is to determine the influence of mixture rasio of cement/bamban particles on the quality of the cement boards. This research was conducted by four mixture rasio cement/bamban particles (w/w) that was 1.25/1, 1.5/1, 1.75/1 and 2/1. Bamban particles was immersion on hot water (boiling at 100°C) for 3 hours to remove the extractives compounds. The mixture ratio between cement and bamban particles was compressed for 1 hour at a pressure of 30 bar, followed by manual pressure (clamping) for 24 hours. The physical and mechanical properties of cement boards was conducted according to SNI 03-2104-1991 for wood-wool cement boards. The results of the study show that mixture rasio cement/bamban particles has a very significant effect on the quality of the resulting cement boards.
Sifat Pengeringan Alami Kayu Tumeh (Combretocarpus rotundatus Dans) pada Radial Di Kalimantan Tengah : Natural Drying Properties Radial Direction of Tumeh (Combretocarpus rotundatus Dans) In Central Kalimantan Supriyati, Wahyu; Alpian, Alpian; Yanciluk, Yanciluk; Andi, Andi
HUTAN TROPIKA Vol 19 No 2 (2024): Volume 19 Nomor 2 Tahun 2024
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v19i2.18598

Abstract

The use of wood requires wood conditions with low air content (KA) according to the environment. Its position can influence wood properties in the trunk. The objectives of this research are a) to analyze the natural drying properties, namely the drying rate in the radial direction of tumeh wood, and b) to analyze natural drying defects. The method used refers to Hidayat and Karnasudirdja 1987. The parameters measured are natural drying properties (drying rate) and drying defects. Statistical analysis used t test. The results show that the natural drying rate pattern is greater near the liver than near the bark. The location in the radial direction of the wood (near the bark and the heart) has no significant effect to the natural drying of tumeh wood. The natural drying defect found were surface check and end check. Further research into the natural drying properties of tumeh wood in different diameters is necessary to utilize the wood effectively and efficiently.
Penyusutan dan Dimensi Serat Kayu Tumeh (Combretocarpus rotundatus Dans) pada Letak Radial: The Shrinkage and Fiber Dimension of Tumeh Wood (Combretocarpus rotundatus Dan) on Radial Positions Supriyati, Wahyu; Alpian, Alpian; Yanciluk, Yanciluk
Daun: Jurnal Ilmiah Pertanian dan Kehutanan Vol. 11 No. 1 (2024): Daun: Jurnal Ilmiah Pertanian dan Kehutanan
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/daun.v11i1.6296

Abstract

The shrinkage of wood and the dimensions of wood fibers in the radial positions of stem are two important factors in the use of wood. An understanding of the dimension of wood fiber and the shrunkage of the wood in the radial direction can guide the optimum use of timber. The purpose of this study is to determine the shrinkage and changes in the dimensions of the timber (Combretocarpus rotundatus Dans) in the radial direction. The method used refers to the British and IAWA standards. The parameters measured are the radial and tangential shrinkage of wood as well as the dimensions of the fiber. The t test is used to test statistically. The results obtained showed that the position in the radial direction of the stem had a significant influence on the tangential shrinkage of fresh-oven dry and the fiber dimensions of Tumeh wood. The tangential shrinkage of the near pith is lower than that near the bark. The nearest pith part has a shorter fiber length; a thicker fiber wall is thinner than the near bark but still in the same quality class (Grade III) Keywords: tumeh, combretocarpus rotundatus, shrinkage, fiber dimension, radial positions.
Co-Authors Alpian Andi Andi Christy, Eva Oktoberyani Gimson Luhan K. Firdara, Eritha Mahdi Santoso Nuwa, Nuwa Pidjath, Chartina Pratama, Redi Saputra Putra, Apri Wijaya Silvianingsih, Yosefin Ari Wahyu Supriyati