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Journals / Mobilya ve Ahşap Malzeme Araştırmaları Dergisi / 2026 / Cilt: 9 Sayı: 1

Effect of thermal modification using steam on the physico-mechanical properties of Gigantochloa levis and Bambusa vulgaris

Buhar kullanılarak yapılan termal modifikasyonun Gigantochloa levis ve Bambusa vulgaris'in fiziko-mekanik özelliklerine etkisi

Juanito Jimenez(Department of Science and Technology-Forest Products Research and Development Institute)0000-0001-7389-1826
Michaela Germaine Macalinao(Department of Science and Technology, Forest Products Research and Development Institute)0009-0007-8841-6818
Pages
174–189
Publication Date
2026-06-30
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Overall, moderate thermal modification (175 °C for 30 min) provided the optimal balance between enhanced dimensional stability and mechanical performance for both species.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Bamboo is a sustainable construction material, but is limited by its hygroscopicity and susceptibility to biodegradation.
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Key Findings & Data:This study evaluated the effects of steam thermal modification (TM) at 175 °C and 200 °C for 30 min on the physico-mechanical properties of Gigantochloa levis and Bambusa vulgaris.
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Conclusion & Impact:Overall, moderate thermal modification (175 °C for 30 min) provided the optimal balance between enhanced dimensional stability and mechanical performance for both species.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:bamboo modification · dimensional stability · flexural

Abstract

Bamboo is a sustainable construction material, but is limited by its hygroscopicity and susceptibility to biodegradation. This study evaluated the effects of steam thermal modification (TM) at 175 °C and 200 °C for 30 min on the physico-mechanical properties of Gigantochloa levis and Bambusa vulgaris. Node and internode sections were tested for physical (moisture content, thickness swelling, water absorption, relative density) and mechanical (flexural, compression, tensile) properties using a completely randomized factorial design. TM significantly improved dimensional stability by reducing moisture content, water absorption, and radial swelling. Relative density was mainly influenced by species. While flexural modulus of elasticity remained unaffected, the modulus of rupture decreased at 200 °C. Nodal sections consistently exhibited lower tensile strength than internodes, with the lowest values occurring at 200 °C. Conversely, compression strength significantly increased after TM. Overall, moderate thermal modification (175 °C for 30 min) provided the optimal balance between enhanced dimensional stability and mechanical performance for both species.

Özet

Bambu, sürdürülebilir bir yapı malzemesidir ancak higroskopikliği ve biyolojik bozunmaya yatkınlığı nedeniyle sınırlamalara sahiptir. Bu çalışma, Gigantochloa levis ve Bambusa vulgaris'in fiziko-mekanik özelliklerine 175 °C ve 200 °C'de 30 dakika süreyle buharla termal modifikasyonun (TM) etkilerini değerlendirmiştir. Düğüm ve düğüm arası bölümler, tamamen rastgele faktöriyel tasarım kullanılarak fiziksel (nem içeriği, kalınlığına şişmesi, su emme, bağıl yoğunluk) ve mekanik (eğilme, basınç, çekme) özellikler açısından test edilmiştir. TM, nem içeriğini, su emmeyi ve radyal şişmeyi azaltarak boyutsal kararlılığı önemli ölçüde iyileştirmiştir. Bağıl yoğunluk esas olarak türden etkilendi. Eğilmede elastikiyet modülü etkilenmeden kalırken, eğilme direnci 200 °C'de azaldı. Düğüm bölümleri, düğüm arası bölümlere göre sürekli olarak daha düşük çekme dayanımı göstermiş ve en düşük değerler 200 °C'de görülmüştür. Buna karşılık, basınç direnci TM'den sonra önemli ölçüde artmıştır. Genel olarak, orta düzeyde termal modifikasyon (30 dakika 175 °C), her iki tür için de gelişmiş boyutsal kararlılık ve mekanik performans arasında en uygun dengeyi sağlamıştır.

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Cite This Article

Jimenez, J., Macalinao, M. G. (2026). Effect of thermal modification using steam on the physico-mechanical properties of Gigantochloa levis and Bambusa vulgaris. Mobilya ve Ahşap Malzeme Araştırmaları Dergisi, Cilt: 9 Sayı: 1, 174–189. https://doi.org/10.33725/mamad.1969833

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