Strain-hardening performance of low-carbon engineered supersulfated cement composites : The promoting role of Yellow River sediment
低炭素エンジニアリング超硫酸塩セメント複合材料のひずみ硬化性能：黄河堆積物の促進的役割 (AI 翻訳)
Hongzhi Zhang, Qi Li, Jie Yang, Tiantao Wan, Jingjing Lyu, Jiang Du, Hongyu Ran, Zhi Ge
🤖 gxceed AI 要約
日本語
この研究は、産業副産物と黄河堆積物を用いた低炭素セメント複合材料を開発。最適配合で従来品と同等の圧縮強度を維持しつつ、引張ひずみが55%向上。ライフサイクル評価により、炭素排出量を70%、コストを22.4%削減可能であることを実証。
English
This study develops a low-carbon engineered supersulfated cement composite using industrial by-products and Yellow River sediment. The optimal mix achieves comparable compressive strength to conventional ECC while increasing tensile strain by 55%. Lifecycle assessment shows 70% reduction in carbon emissions and 22.4% cost reduction.
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、セメント製造によるCO2排出が課題。本研究成果は、産業副産物と河川堆積物を活用した低炭素材料の可能性を示し、日本でも適用可能な知見を提供。
In the global GX context
This paper demonstrates a viable pathway for low-carbon construction materials using waste streams. The 70% emission reduction and cost savings are globally relevant, especially for regions with abundant river sediment and industrial by-products.
👥 読者別の含意
🔬研究者:Provides a method to enhance strain-hardening while reducing carbon footprint using industrial by-products and natural sediment.
🏢実務担当者:Demonstrates a cost-effective, low-carbon alternative for ECC in construction with potential for material cost reduction and sustainability claims.
🏛政策担当者:Highlights potential for carbon emission reduction in construction through use of waste materials, informing policies on sustainable materials.
📄 Abstract（原文）
Engineered cementitious composites (ECCs) are a type of fiber-reinforced building material known for their high ductility, effective crack management, and resilience to damage. However, their broader use is limited by the significant carbon footprint of Portland cement and the expense of ultrafine quartz sand. This study develops a cost-effective, low-carbon engineered supersulfated cement composite (ESSCC) by employing a solid waste-based supersulfated cement (SSC) as the binder and completely substituting fine aggregate with locally dredged Yellow River sediment (YRS). The effects of the sand-to-binder ratio and fiber volume content on the mechanical properties and microstructure were investigated. The optimal mixture exhibited a 28-day compressive strength comparable to its optimal quartz sand counterpart, while the ultimate tensile strain reached 4.2%, representing a 55% increase. Microstructural and micromechanical analyses revealed that the YRS enhanced the fiber-matrix interface, raising the frictional bond stress ( τ 0 ) by 31% and slip-hardening coefficient ( β ) by 70.8%, while significantly reducing matrix fracture toughness ( K m ). The optimized micromechanical condition yielded a higher Pseudo strain-hardening indices ( PSH ). This synergistically improved the composite's macroscopic strain-hardening and multiple-cracking behavior. A lifecycle assessment reveals that, compared with a standard ECC, ESSCC can reduce the carbon emission of materials by about 70%, the cost can also be reduced by 22.4%. This study illustrates a feasible approach to producing sustainable ECC with enhanced mechanical performance through the synergistic use of industrial by-products and natural waste sediment.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.jobe.2026.116930first seen 2026-07-26 05:17:32
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