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All Journal Daun: Jurnal Ilmiah Pertanian dan Kehutanan Jurnal Ilmiah Sangkareang Mataram
I Gde Dharma Atmaja
Universitas Pendidikan Mandalika
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Education Public Health Social Sciences

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Analisis Perbandingan Sifat Fisika dan Mekanika Papan Laminasi Kayu Jati Putih (Gmelina arborea. Roxb) dan Papan Lamninasi Bambu Petung (Dendrocalamus asper): Comparison Analysis of Physical and Mechanical Properties of White Teak Wood (Gmelina arborea. Roxb) Laminate Board and Petung Bamboo (Dendrocalamus asper) Lamniation Board Febriana Tri Wulandari; I Gde Dharma Atmaja
Daun: Jurnal Ilmiah Pertanian dan Kehutanan Vol. 9 No. 2 (2022): 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.v9i2.4186

Abstract

This study of laminated boards wants to compare laminated boards made of wood and non-wood raw materials. For wood, use white teak (Gmelina arborea. Roxb) and non-wood using petung bamboo (Dendrocalamus asper). Teak wood is easy to work either by machine or by hand. It has an average fiber length of 1.32 mm with a diameter of 24.8 μm. Teak wood is included in durable class 1 and strong class II, has a fairly good nail resistance and can withstand rust with the age of an old tree. Petung bamboo has a diameter that can reach 20 cm with a wall thickness of 1-3 cm, making it suitable for use as laminated bamboo. To see the difference in strength of the two boards, it is necessary to test the physical and mechanical properties. The purpose of this study is to compare the strength of the physical and mechanical properties of laminated boards made of wood and non-wood so that they can provide recommendations according to their use. The test values for physical and mechanical properties of white teak laminated boards and petung bamboo laminated boards showed no significant difference. All tests of physical and mechanical properties have met the standard except for the thickness shrinkage test for white teak laminated boards which did not meet the standards. Based on the value of testing the physical and mechanical properties, the laminated boards of white teak and petung bamboo are included in the strong class III which can be used for indoor construction materials.
ANALISIS KARAKTERISTIK LITOLOGI DAN PARAMETER GEOTEKNIK MATERIAL VULKANIK UNTUK PERENCANAAN LERENG DI DAERAH LABUHAN BADAS KABUPATEN SUMBAWA PROVINSI NUSA TENGGARA BARAT Rukayah; I Gde Dharma Atmaja; Gusti Ayu Esty Windhari; Yuniar Pratiwi
JURNAL SANGKAREANG MATARAM Vol. 13 No. 1 (2026): JUNI 2026
Publisher : SANGKAREANG

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Daerah Labuhan Badas, Kabupaten Sumbawa, tersusun oleh material vulkanik yang memiliki karakteristik geologi dan geoteknik beragam sehingga perlu dikaji sebagai dasar perencanaan lereng yang aman. Penelitian ini bertujuan untuk menganalisis karakteristik litologi dan parameter geoteknik material vulkanik serta mengevaluasi pengaruhnya terhadap perencanaan lereng. Metode penelitian meliputi pemetaan geologi, penggalian test pit, pengambilan sampel, dan pengujian laboratorium yang mencakup analisis gradasi butiran, berat isi, berat jenis, batas Atterberg, kadar air, serta California Bearing Ratio (CBR). Hasil penelitian menunjukkan bahwa litologi daerah penelitian didominasi oleh breksi vulkanik, endapan pasir vulkanik, dan lapisan tanah penutup (top soil). Nilai berat jenis berkisar antara 2,557–2,630 g/cm³, indeks plastisitas 8,66–11,82%, dan nilai CBR 11,50–13,70%, yang menunjukkan material memiliki plastisitas rendah hingga sedang serta memenuhi persyaratan daya dukung tanah dasar. Karakteristik litologi dan parameter geoteknik tersebut menunjukkan bahwa material vulkanik di daerah penelitian memiliki potensi yang baik untuk perencanaan lereng, dengan tetap mempertimbangkan kondisi geologi dan penerapan desain lereng yang sesuai guna menjamin kestabilan jangka panjang.
Co-Authors Gusti Ayu Esty Windhari Rukayah Wulandari, Febriana Tri Yuniar Pratiwi