Mechanical Characteristics of Clay-Based Masonry Walls
粘土系組積壁の機械的特性 (AI 翻訳)
Houssam Affan, Wahib Arairo, Firas Barraj, Milad Khatib, Marianne Saba, Yassine El Mendili
🤖 gxceed AI 要約
日本語
本研究は、低炭素で地域調達可能な原料としての生土に着目し、粘土系組積壁の機械的・熱的特性を実験的に評価した。モルタル組成や水和時間が強度に大きく影響し、セメント添加よりも長時間のプレ水和が炭素排出削減に効果的であることを示した。熱特性分析では、SiO2含有量が熱伝導率を高める一方、Al2O3とMgOは熱容量と調湿性能を向上させることを明らかにした。これらの結果は、非耐力壁用途に最適化された粘土系モルタルが、従来建材に代わる持続可能な選択肢となり得ることを示している。
English
This study experimentally evaluates the mechanical and thermal properties of clay-based masonry walls, focusing on raw soil as a low-carbon, locally available material. It finds that mortar composition and hydration time significantly affect strength, and that extended pre-hydration achieves strength gains with lower carbon footprint than cement addition. Thermal analysis reveals SiO2 enhances conductivity while Al2O3 and MgO improve heat capacity and moisture regulation. Results suggest optimized clay mortars can serve as sustainable alternatives for non-load-bearing applications, contributing to green building practices.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本の建設分野では、脱炭素化に向けた建材の転換が急務であり、本研究成果は在来のコンクリートブロックやセメントモルタルに代わる低炭素選択肢を提供する。特に、地域資源の活用と炭素排出削減の両立を目指す日本の建築基準やグリーン建築認証（CASBEE等）に関連する。
In the global GX context
Globally, the building sector seeks to reduce embodied carbon. This paper advances understanding of clay-based materials as a practical low-carbon alternative to conventional masonry, relevant to green building certifications (LEED, BREEAM) and circular economy goals. It provides experimental data useful for architects and engineers aiming to meet net-zero targets.
👥 読者別の含意
🔬研究者:Provides experimental data on clay mortar mechanics and thermal properties, useful for developing optimized low-carbon construction materials.
🏢実務担当者:Offers practical guidance on using clay-based mortars in non-load-bearing walls, with insights on reducing cement content while maintaining performance.
🏛政策担当者:Supports evidence for updating building codes to allow low-carbon earthen materials, contributing to sector decarbonization policies.
📄 Abstract（原文）
The building sector is under increasing pressure to lower its environmental impact, prompting renewed interest in raw soil as a low-carbon and locally available material. This study investigates the mechanical and thermal properties of clay-based masonry walls through a comprehensive experimental program on earthen mortars, bricks, and their interfaces, considering both stabilized and non-stabilized formulations. Compressive, bending, and shear tests reveal that strength is strongly influenced by mortar composition, hydration time, and the soil-to-sand ratio. The addition of 5–7.5% cement yields modest gains in compressive strength but increases the carbon footprint, whereas extended pre-hydration achieves similar improvements with lower environmental costs. Thermal characterization of the studied samples (SiO2 ≈ 61.2 wt%, Al2O3 ≈ 11.7 wt%, MgO ≈ 5.1 wt%) revealed that SiO2-enriched compositions significantly enhance thermal conductivity, whereas the presence of Al2O3 and MgO contributes to increased heat capacity and improved moisture regulation. These findings suggest that well-optimized clay-based mortars can satisfy the structural and thermal requirements of non-load-bearing applications, offering a practical and sustainable alternative to conventional construction materials. By reducing embodied carbon, enhancing hygrothermal comfort, and relying on locally available resources, such mortars contribute to the advancement of green building practices and the transition towards low-carbon construction.
🔗 Provenance — このレコードを発見したソース
- openaire https://doi.org/10.3390/eng6100260first seen 2026-06-29 04:51:03 · last seen 2026-07-05 04:41:55
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