リサイクル材料を用いた持続可能なECCの実験的検証とライフサイクル評価
Sustainable engineered cementitious composites incorporating recycled materials: Experimental validation and life cycle assessment. (原題)
Aneel Manan, Jawad Ahmad, Fawad Ahmad, H. Qureshi
🤖 gxceed AI 要約
日本語
本研究は、再生コンクリート粉末と廃タイヤ鋼繊維を混入したECCの力学性能と環境影響を実験とLCAで評価。曲げ強度は最大44.5MPaを維持し、気候変動影響と化石資源消費を低減。低炭素で循環型の建設材料として有望。
English
This study evaluates ECC with recycled concrete powder and waste tire steel fiber, showing maintained flexural strength (up to 44.5 MPa) and reduced climate change and fossil resource impacts via LCA, supporting low-carbon circular construction.
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
日本の建設業界では、カーボンニュートラル達成に向けてコンクリートの低炭素化が急務。本研究成果は、廃棄物由来の材料を活用した環境配慮型コンクリートの実用化に寄与し、今後の建設資材の脱炭素化や循環経済政策に示唆を与える。
In the global GX context
Globally, the construction sector faces pressure to reduce embodied carbon. This study provides empirical evidence on recycled-material ECC, contributing to circular economy and low-carbon construction practices, relevant to ISSB/CSRD reporting and green building standards.
👥 読者別の含意
🔬研究者:Provides experimental and LCA data on recycled ECC, useful for further material optimization and environmental impact assessment.
🏢実務担当者:Offers a viable low-carbon alternative for concrete applications, potentially aiding in sustainability reporting and green procurement.
🏛政策担当者:Highlights the potential of recycled materials in construction, supporting policies for circular economy and carbon reduction in building materials.
📄 Abstract（原文）
The use of recycled constituents in engineering cementitious composites (ECC) offers a promising pathway to reduce the environmental burden of cement-based materials while maintaining high mechanical performance. In this study, recycled concrete powder (RCP) and waste tire steel fiber (WTSF) were incorporated into ECC, and their mechanical and environmental performance was evaluated through experimental testing, Digital Image Correlation (DIC), Scanning Electron Microscopy (SEM) and life cycle assessment (LCA). DIC was used during flexural testing to quantify surface deformation and characterize crack initiation and propagation, while SEM was employed to evaluate fiber-matrix interaction, microstructural features, and crack-bridging mechanisms. A cradle-to-gate LCA was compare the environmental impacts of cement, RCP, industrial steel fibers, WTSF, and sustainable ECC mixtures. The experimental results show that the sustainable ECC mixtures maintained competitive flexural performance, with the highest flexural strengths reaching 44.5 MPa for a mixture containing 2% WTSF and 43.5 MPa with 2% polyethylene fiber. The LCA results for the complete sustainable ECC mixtures demonstrated reductions in climate change potential and fossil resource consumption compared with conventional ECC mixtures. These findings demonstrate the potential of recycled-material-based ECC to support sustainable, low-carbon, and circular construction practices without compromising structural performance. Overall, the findings support RCP and WTSF as effective low-carbon alternatives for ECC, enabling improved sustainability without compromising structural performance.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0355961&type=printablefirst seen 2026-08-31 05:39:20 · last seen 2026-09-22 05:13:34
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