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The Effect of Yakisugi Finishing Application on the Physical and Mechanical Properties of Rajumas Wood (Duabanga moluccana): Pengaruh Aplikasi Finishing Yakisugi Terhadap Sifat Fisis dan Mekanis Kayu Rajumas (Duabanga moluccana)

Pengaruh Aplikasi Finishing Yakisugi Terhadap Sifat Fisis dan Mekanis Kayu Rajumas (Duabanga moluccana): The Effect of Yakisugi Finishing Application on the Physical and Mechanical Properties of Rajumas Wood (Duabanga moluccana)

PERENNIAL · Vol. 21 No. 2 (2025) · pp. 81–88

DOI
10.24259/perennial.v21i2.47509
ISSN
2685-6859, 1412-7784
Published
2025-10-31
Publisher
Forestry Faculty of Hasanuddin University
Language
en

Abstract

English

This study aims to examine the influence of yakisugi surface charring treatment on the physical and mechanical properties of Rajumas wood (Duabanga moluccana). The method involved surface burning for 0 (control), 20, 40, and 60 seconds using a butane gas torch. Tests were conducted on moisture content, density, shrinkage, water absorption, thickness swelling, modulus of rupture (MoR), and modulus of elasticity (MoE). Statistical analysis using one-way ANOVA followed by Tukey’s HSD test (α = 0.05) was performed to evaluate treatment effects. The results showed that burning duration affected both physical and mechanical properties of Rajumas wood. Longer burning durations improved dimensional stability by reducing moisture content, water absorption, and swelling; however, mechanical strength (MoR and MoE) tended to decrease at 60 seconds due to partial thermal degradation of cell wall polymers. Moderate exposure (20–40 seconds) provided an optimal balance between improved stability and acceptable strength retention. This study highlights the novel application of Yakisugi to a fast-growing tropical hardwood, offering a sustainable surface modification technique for enhancing durability and performance in non-structural wood applications.

Bahasa Indonesia

Penelitian ini bertujuan untuk mengetahui pengaruh perlakuan pembakaran permukaan teknik yakisugi terhadap sifat fisis dan mekanis kayu Rajumas (Duabanga moluccana). Metode penelitian dilakukan dengan pembakaran permukaan kayu selama 0 (kontrol), 20, 40, dan 60 detik menggunakan obor gas butana. Pengujian meliputi kadar air, kerapatan, penyusutan, daya serap air, pengembangan tebal, keteguhan patah (MoR), dan modulus elastisitas (MoE). Analisis statistik menggunakan one-way ANOVA yang dilanjutkan dengan uji lanjut Tukey’s HSD (α = 0,05) untuk mengetahui pengaruh perlakuan. Hasil penelitian menunjukkan bahwa lama pembakaran berpengaruh terhadap sifat fisis dan mekanis kayu Rajumas. Pembakaran dengan durasi lebih lama meningkatkan stabilitas dimensi melalui penurunan kadar air, daya serap air, dan pengembangan tebal; namun kekuatan mekanis (MoR dan MoE) cenderung menurun pada pembakaran 60 detik akibat degradasi termal parsial pada polimer dinding sel. Perlakuan sedang (20–40 detik) memberikan keseimbangan optimal antara peningkatan stabilitas dimensi dan penurunan kekuatan yang masih dapat diterima. Penelitian ini menyoroti penerapan baru teknik Yakisugi pada kayu tropis cepat tumbuh, yang menawarkan metode modifikasi permukaan berkelanjutan untuk meningkatkan keawetan dan performa kayu pada aplikasi non-struktural.

Keywords

Collaboration network of the authors

27 authors · 74 co-authorship links

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Co-authorOrganisationJoint articles
Hairil AnwarAffiliation unknown3
Fauzan FahrussiamAffiliation unknown3
Dhefa Alifbayu AnggoroAffiliation unknown3
Maiser SyaputraAffiliation unknown2
Endah WahyuningsihAffiliation unknown2
Dini LestariAffiliation unknown2
Dhefa AnggoroAffiliation unknown2
Febriana Tri WulandariAffiliation unknown1
Nurul ChaeraniAffiliation unknown1
Liza UmitasariAffiliation unknown1
Baiq Jiwa Yulina PutriAffiliation unknown1
Andi Chairil IchsanAffiliation unknown1
Zsarytha MauliaAffiliation unknown1
Zsarytha Maulia Timur DewiAffiliation unknown1
Clarita Wihelmina SulastriAffiliation unknown1
Irwan Mahakam Lesmono AjiAffiliation unknown1
Faujiah Nurhasanah RitongaAffiliation unknown1
Arida SusilowatiAffiliation unknown1
Deanova Frestiana Br PelawiAffiliation unknown1
Nelly AnnaAffiliation unknown1
Kansih Sri HartiniAffiliation unknown1
Deni ElfiatiAffiliation unknown1
Pande Komang SuparyanaAffiliation unknown1
Alief KurniawanAffiliation unknown1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

Metadata source: OAI-PMH (metadata jurnal) https://journal.unhas.ac.id/index.php/perennial/oai, first harvested 5 Nov 2026, last seen 5 Nov 2026.
Original metadata (oai_dc) 
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	<dc:title xml:lang="en">The Effect of Yakisugi Finishing Application on the Physical and Mechanical Properties of Rajumas Wood (Duabanga moluccana): Pengaruh Aplikasi Finishing Yakisugi Terhadap Sifat Fisis dan Mekanis Kayu Rajumas (Duabanga moluccana)</dc:title>
	<dc:title xml:lang="id">Pengaruh Aplikasi Finishing Yakisugi Terhadap Sifat Fisis dan Mekanis Kayu Rajumas (Duabanga moluccana): The Effect of Yakisugi Finishing Application on the Physical and Mechanical Properties of Rajumas Wood (Duabanga moluccana)</dc:title>
	<dc:creator xml:lang="en">Amir, Hafidzah Amani</dc:creator>
	<dc:creator xml:lang="en">Lestari, Andi Tri</dc:creator>
	<dc:creator xml:lang="en">Ningsih, Rima Vera</dc:creator>
	<dc:subject xml:lang="id">Duabanga moluccana</dc:subject>
	<dc:subject xml:lang="id">Modifikasi termal</dc:subject>
	<dc:subject xml:lang="id">Yakisugi</dc:subject>
	<dc:subject xml:lang="en">Duabanga moluccana</dc:subject>
	<dc:subject xml:lang="en">Thermal modification</dc:subject>
	<dc:subject xml:lang="en">Yakisugi</dc:subject>
	<dc:description xml:lang="en">



This study aims to examine the influence of yakisugi surface charring treatment on the physical and mechanical properties of Rajumas wood (Duabanga moluccana). The method involved surface burning for 0 (control), 20, 40, and 60 seconds using a butane gas torch. Tests were conducted on moisture content, density, shrinkage, water absorption, thickness swelling, modulus of rupture (MoR), and modulus of elasticity (MoE). Statistical analysis using one-way ANOVA followed by Tukey’s HSD test (α = 0.05) was performed to evaluate treatment effects. The results showed that burning duration affected both physical and mechanical properties of Rajumas wood. Longer burning durations improved dimensional stability by reducing moisture content, water absorption, and swelling; however, mechanical strength (MoR and MoE) tended to decrease at 60 seconds due to partial thermal degradation of cell wall polymers. Moderate exposure (20–40 seconds) provided an optimal balance between improved stability and acceptable strength retention. This study highlights the novel application of Yakisugi to a fast-growing tropical hardwood, offering a sustainable surface modification technique for enhancing durability and performance in non-structural wood applications.



</dc:description>
	<dc:description xml:lang="id">



Penelitian ini bertujuan untuk mengetahui pengaruh perlakuan pembakaran permukaan teknik yakisugi terhadap sifat fisis dan mekanis kayu Rajumas (Duabanga moluccana). Metode penelitian dilakukan dengan pembakaran permukaan kayu selama 0 (kontrol), 20, 40, dan 60 detik menggunakan obor gas butana. Pengujian meliputi kadar air, kerapatan, penyusutan, daya serap air, pengembangan tebal, keteguhan patah (MoR), dan modulus elastisitas (MoE). Analisis statistik menggunakan one-way ANOVA yang dilanjutkan dengan uji lanjut Tukey’s HSD (α = 0,05) untuk mengetahui pengaruh perlakuan. Hasil penelitian menunjukkan bahwa lama pembakaran berpengaruh terhadap sifat fisis dan mekanis kayu Rajumas. Pembakaran dengan durasi lebih lama meningkatkan stabilitas dimensi melalui penurunan kadar air, daya serap air, dan pengembangan tebal; namun kekuatan mekanis (MoR dan MoE) cenderung menurun pada pembakaran 60 detik akibat degradasi termal parsial pada polimer dinding sel. Perlakuan sedang (20–40 detik) memberikan keseimbangan optimal antara peningkatan stabilitas dimensi dan penurunan kekuatan yang masih dapat diterima. Penelitian ini menyoroti penerapan baru teknik Yakisugi pada kayu tropis cepat tumbuh, yang menawarkan metode modifikasi permukaan berkelanjutan untuk meningkatkan keawetan dan performa kayu pada aplikasi non-struktural.



</dc:description>
	<dc:publisher xml:lang="en">Forestry Faculty of Hasanuddin University</dc:publisher>
	<dc:date>2025-10-31</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.unhas.ac.id/index.php/perennial/article/view/47509</dc:identifier>
	<dc:identifier>10.24259/perennial.v21i2.47509</dc:identifier>
	<dc:source xml:lang="en">PERENNIAL; Vol. 21 No. 2 (2025): Vol. 21 No. 2, October 2025; 81-88</dc:source>
	<dc:source xml:lang="id">PERENNIAL; Vol 21 No 2 (2025): Vol. 21 No. 2, October 2025; 81-88</dc:source>
	<dc:source>2685-6859</dc:source>
	<dc:source>1412-7784</dc:source>
	<dc:language>en</dc:language>
	<dc:relation>https://journal.unhas.ac.id/index.php/perennial/article/view/47509/13682</dc:relation>
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