Hafif Kil Malzemelerin Termal Performansı: Kenevir ve Saman Liflerinin Hacim Bazlı Karşılaştırması

Year 2025, Volume: 10 Issue: 2, 1049 - 1061, 27.12.2025

Bengü İtmeç , Matthieu Joseph Pedergnana , Yenal Akgün

Abstract

Hafif kil malzemeler, tarımsal atık liflerini (özellikle saman ve kenevir atığı) ana bileşen olarak ve kili bağlayıcı olarak kullanabilme kapasiteleri nedeniyle sürdürülebilir inşaat sektöründe giderek daha fazla ilgi görmektedir. Ancak farklı liflere dayalı hafif kil malzemelerinin ısıl özelliklerine ilişkin çalışmalar artmasına rağmen, aynı miktarda kil ile bağlanan kenevir atığı ve saman esaslı hafif kil panellerini karşılaştıran bir çalışma bulunmamaktadır. Bu çalışmanın sonuçları, panel üretiminde kullanılan lif miktarının yoğunluk üzerinde önemli bir etkisi olduğunu ve benzer bileşimlerde kenevir atığı kullanımının saman kullanımına kıyasla daha düşük ısı iletkenliği sağladığını göstermektedir (sırasıyla 0.05 W/mK ve 0.11 W/mK). Ayrıca, kenevir atığı esaslı paneller için ölçülen düşük ısı iletkenliği değerleri (0.02 kg/m³’e kadar), kil esaslı malzemelerin sürdürülebilir bir yalıtım malzemesi olarak etkin bir şekilde kullanılabileceğini göstermektedir.

Keywords

Isıl iletkenlik , kenevir , saman , hafif kil malzemeleri , yoğunluk

Project Number

BAP 141

Thermal Performance of Light Clay Materials: A Volume-based Comparison of Hemp and Straw Fibers

Abstract

Light-clay materials have gained popularity in the sustainable construction sector for their capacity to use agricultural waste fibres (mainly straw and hempshives) as their main components and clay as a binder. However, despite an increasing number of studies on the thermal properties of light-clay materials based on different fibers, no studies have been made comparing hempshive-based and straw-based light-clay panels bound with the same amount of clay. The results of this study show that the amount of fibres used in the production of the panels has a significant impact on their density, with the usage of hemp shives providing a lower thermal conductivity than straw (respectively 0.05 W/mK and 0.11 W/mK) for a similar composition. Moreover, the low thermal conductivity measured (up to 0.02 kg/m³) for hempshive-based panels indicates that clay-based materials can be utilized efficiently as sustainable insulation.

Keywords

Thermal conductivity , hemp , straw , light clay materials , density

Ethical Statement

This paper is originated the MSc thesis of Bengü İtmeç from Yaşar University. In addition, this work formed part of the scientific research project “Usage of Agricultural Waste for Clay-Bonded Insulation”, which was accepted by the Project Evaluation Commission of Yaşar University under project number BAP141. The authors acknowledge the Geothermal Research and Application Center the Biotechnology and Bioengineering Application and Research Center (CFB) at IZTECH Integrated Research Centers (IZTECH IRC) for testing and analyses. The paper complies with national and international research and publication ethics. Ethics committee approval was not required for this manuscript.

Supporting Institution

Yaşar University, Bioengineering Application and Research Center (CFB) at IZTECH Integrated Research Centers (IZTECH IRC)

Project Number

BAP 141

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