Mechanical and environmental performance of engineered earthen walls reinforced with waste carpet fibers
廃カーペット繊維で補強した加工土壁の力学的・環境性能 (AI 翻訳)
Amirhossein Naseri, S. M. Fattahi, Arian Sarchami
🤖 gxceed AI 要約
日本語
本研究は、廃ポリアクリルカーペット繊維（WPCF）で補強し、セメントまたはGGBS系アルカリ活性化結合材で安定化したラムドアース（RE）壁の力学性能と環境性能を評価。UCS、BTS、微細構造分析、およびReCiPe2016を用いたLCAを実施。GGBS安定化RE壁（S7F3）はセメント系より12%低い環境フットプリントを示し、従来のレンガ・コンクリート壁より大幅に低い影響を示した。廃材活用と低環境負荷の両立が可能な持続可能な建築材料として有望。
English
This study evaluates mechanical and environmental performance of rammed earth walls reinforced with waste carpet fibers and stabilized with cement or alkali-activated GGBS. Combined use of 10% stabilizer and 3% fibers achieved 3.7-fold higher UCS and lower environmental footprint than conventional materials. GGBS-based walls had 12% lower impact than cement-based ones, showing promise as a sustainable construction alternative.
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
日本は2050年カーボンニュートラル目標を掲げ、建設分野での脱炭素が急務。本論文は廃カーペット繊維の活用とGGBSによる低炭素素材開発を示しており、サーキュラーエコノミーと建設GXの接点として日本企業・政策に示唆を与える。
In the global GX context
Globally, embodied carbon reduction in buildings is critical for net-zero targets. This paper provides an integrated assessment of a low-carbon construction material using waste fibers and alkali-activated binders, offering a scalable alternative to conventional masonry with LCA evidence relevant to green building standards and circular economy policies.
👥 読者別の含意
🔬研究者:The LCA methodology and material optimization approach can inform further research on sustainable construction materials.
🏢実務担当者:Construction firms can evaluate this material for low-embodied-carbon building projects, especially in regions with carpet waste availability.
🏛政策担当者:Supports policies promoting recycled content in building materials and low-carbon alternatives to cement.
📄 Abstract（原文）
This study evaluates the mechanical and environmental performance of rammed earth (RE) walls reinforced with waste polyacrylic carpet fibers (WPCF) and stabilized using either cement or an alkali-activated binder system prepared by activating Ground Granulated Blast Furnace Slag (GGBS) with potassium hydroxide (KOH). Unconfined compressive strength (UCS), Brazilian tensile strength (BTS), and microstructural analyses (FESEM–EDS) were performed to examine performance mechanisms, while a cradle-to-gate Life Cycle Assessment (LCA) using ReCiPe 2016 in SimaPro assessed sustainability. Results showed that adding 10% stabilizer increased UCS by 85%, and 3% WPCF enhanced strength 1.2 times; combining both achieved 3.7-fold higher UCS and up to 6.2-fold higher BTS than untreated RE. LCA indicated that GGBS-based RE wall (S7F3) had a 12% lower footprint (3.96 Pt) than the cement-based RE wall (C7F3) and substantially lower impacts than brick–cement and concrete block walls. Overall, GGBS-stabilized RE reinforced with recycled WPCF demonstrates high mechanical performance, lower embodied impacts, and strong potential as a sustainable alternative to conventional construction materials. The integrated evaluation of WPCF rammed earth walls stabilized with GGBS, combining mechanical testing, microstructural analysis, and life cycle assessment to demonstrate both performance enhancement and environmental benefits compared to conventional masonry systems.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1038/s41598-026-48329-1first seen 2026-06-29 07:38:23
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