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A comprehensive life cycle assessment of sustainable reinforcement solutions for expansive soils using natural materials

自然材料を用いた膨張性土壌の持続可能な補強ソリューションに関する包括的ライフサイクルアセスメント (AI 翻訳)

Ahlam El Majid

Materials Research Proceedings2026-01-01#炭素会計経営インパクト: コスト削減対象セクター: construction
DOI: 10.21741/9781644903933-19
原典: https://doi.org/10.21741/9781644903933-19

🤖 gxceed AI 要約

日本語

本研究は、膨張性土壌の安定化における自然材料（天然繊維、バイオポリマー、農業副産物）の使用を従来のセメントや石灰と比較したライフサイクルアセスメントを実施。結果、自然材料はセメントに比べて炭素排出量を40～60%削減でき、土壌の膨張抑制や強度向上にも効果的であることを示した。大規模実装には課題もあるが、環境負荷低減に貢献する可能性が高い。

English

This study conducts a life cycle assessment comparing natural materials (natural fibers, biopolymers, agro-industrial by-products) with cement/lime for stabilizing expansive soils. Results show natural materials reduce carbon emissions by 40-60%, effectively control soil swelling, and improve strength. Despite challenges in large-scale implementation, they offer significant environmental benefits.

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

日本では建設分野の脱炭素化が進む中、セメント代替素材の活用は重要。本論文は自然材料による炭素排出削減の定量的裏付けを提供し、日本政府のグリーン成長戦略や建設業界のGX推進に資する知見となる。

In the global GX context

Globally, the construction sector accounts for significant emissions. This study provides LCA evidence that natural soil stabilizers can cut carbon by 40-60%, supporting ISSB/CSRD disclosure on embodied carbon. It highlights a scalable pathway for low-impact construction.

👥 読者別の含意

🔬研究者:Provides quantitative LCA data on natural soil stabilizers, useful for researchers in sustainable construction materials.

🏢実務担当者:Corporate sustainability teams in construction can use this to evaluate low-carbon alternatives for soil stabilization, aligning with decarbonization targets.

🏛政策担当者:Policymakers can consider this evidence to promote bio-based stabilizers in building codes and green procurement.

📄 Abstract（原文）

Abstract. Expansive soils cause serious geotechnical issues through their moisture-sensitive volume changes, the results of which are structural integrity loss. Even though traditional stabilization methods using lime or cement are effective, their significant carbon footprint as well as non-renewable nature raise environmental issues. This study conducts a comprehensive life cycle assessment to forecast the long-term viability of bio-based expansive soil stabilizers, pitting natural fibres (Alfa, jute, sisal), biopolymers, and agro-industrial by-products against conventional methods. The Life Cycle Assessment (LCA) approach examines key environmental factors, embodied carbon, energy use, resource use, and long-term durability. The results show that using natural stuff to strengthen soil is good for the earth. The implementation of these materials can lower carbon emissions by 40–60% compared to cement. These materials maintain control over soil swelling and aid in improving soil strength. Agricultural by-products are cheap, can be renewed, and don't need much work to use. A chart will compare how well these materials do over their lives. This chart can aid decision-makers in making sustainable choices. Also, using local plant-based resources helps local economies and supports green building work.However, large-scale implementation remains challenging due to limited availability, inconsistent fiber quality, and the lack of standardized guidelines. Research is finding optimal combinations of fibers and new ways to prepare them to be both strong and good for the environment. This reduces ecological footprints without sacrificing performance. to adopt low-impact stabilization. Future studies must focus on large-scale implementation and long-term field performance for gaining universal industry application.

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