Sustainable Concrete Production through Partial Cement Replacement Using Fly Ash and Rice Husk Ash
フライアッシュと籾殻灰を用いた部分セメント代替による持続可能なコンクリート製造 (AI 翻訳)
Meron Tesfaye, Surya Dewi Puspitasari, O. Setyandito, Ahmed Elamin, W. Kamau
🤖 gxceed AI 要約
日本語
本稿は、フライアッシュと籾殻灰をセメント代替材料として利用し、コンクリートの環境負荷低減を検討する。これらの副産物のポゾラン特性が強度や耐久性を向上させる一方、品質ばらつきや最適配合比などの課題も指摘。廃棄物削減と資源保全を通じ、建設業の循環型経済と脱炭素に貢献する。
English
This paper examines using fly ash and rice husk ash as partial cement replacements to reduce concrete's environmental impact. The pozzolanic properties enhance strength and durability, but challenges like quality variability and optimal mix ratios remain. It supports circular economy and decarbonization in construction by reducing waste and conserving resources.
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
日本では建設業のCO2排出削減が急務であり、セメント代替によるグリーン調達やSSBJ報告に資する。産業副産物の有効活用は廃棄物処理コスト削減にも直結し、日本独自の技術開発への応用が期待される。
In the global GX context
Globally, cement production accounts for ~8% of CO2 emissions, making this research critical for construction decarbonization. It aligns with ISSB/TCFD climate targets and circular economy policies, offering a practical pathway for reducing Scope 1 emissions in the built environment.
👥 読者別の含意
🔬研究者:Provides a review of material properties and performance trade-offs for fly ash and rice husk ash in concrete, useful for optimizing mix design.
🏢実務担当者:Demonstrates feasibility of using industrial/agricultural waste as cement substitute, reducing material costs and embodied carbon for construction projects.
🏛政策担当者:Highlights potential for regulations promoting supplementary cementitious materials to meet national decarbonization goals and waste reduction targets.
📄 Abstract（原文）
This study explores the utilization of fly ash and rice husk ash as supplementary cementitious materials to partially replace ordinary Portland cement (OPC) in concrete production. The increasing environmental impact of cement manufacturing, particularly its contribution to carbon dioxide emissions, has driven the search for alternative materials that promote sustainability without compromising performance. Fly ash and rice husk ash, both industrial and agricultural by-products, possess pozzolanic properties that enhance the mechanical and durability characteristics of concrete when properly incorporated. This paper reviews their chemical composition, particle morphology, and the effects of replacement levels on compressive strength, workability, and long-term durability. Additionally, the study discusses challenges such as variability in ash quality, optimal replacement percentages, and curing conditions that influence performance outcomes. By integrating these waste materials into concrete, significant environmental and economic benefits can be achieved, including reduced landfill disposal, conservation of natural resources, and lower greenhouse gas emissions. The findings highlight the potential of fly ash and rice husk ash as sustainable cement substitutes, supporting the development of eco-friendly construction materials aligned with green building standards and circular economy principles. This research contributes to advancing sustainable practices in the construction industry and provides insights for future studies focused on optimizing mix design, performance enhancement, and large-scale application of alternative cementitious materials.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.53623/tebt.v4i1.870first seen 2026-06-29 07:18:27
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