Performance and eco-efficiency of high-strength concrete incorporating a screened quaternary low-carbon binder
Prathibha P. Shetty, Asha Udaya Rao
🤖 gxceed AI 要約
日本語
OPC50%にフライアッシュ・高炉スラグ・焼成貝殻粉末を組み合わせた四元系低炭素結合材でM65高強度コンクリートを試作。S/N比による配合スクリーニングで圧縮強度を比較し、力学特性・耐久性・環境効率を評価した。産業廃棄物と水産廃棄物の活用により、従来OPCコンクリート比で炭素足跡と embodi energy を削減しつつ、長期強度発現と耐久性向上を示した。
English
A quaternary low-carbon binder (50% OPC, 20% Class F fly ash, 15–25% GGBFS, 5–15% calcined seashell powder) was developed for M65 high-strength concrete. S/N-ratio screening ranked mixes by compressive strength, and mechanical, durability and eco-efficiency tests were run. Industrial and aqua-industrial waste valorisation cut carbon footprint and embodied energy versus conventional OPC concrete while improving later-age strength and durability.
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
建設業のScope 3（資材調達）排出削減やグリーン調達に直結する素材技術。国内の低炭素コンクリート認証や公共調達での環境配慮型材料の採用検討に示唆を与える。
In the global GX context
Speaks to embodied-carbon accounting in construction and to procurement-side Scope 3 reduction, relevant to green building standards and low-carbon material specifications emerging under CSRD/ISSB disclosure of value-chain emissions.
👥 読者別の含意
🔬研究者:廃棄物系混和材の四元系設計とS/N比スクリーニング手法が、低炭素結合材研究の比較評価に有用。
🏢実務担当者:建設・建材調達チームが低炭素コンクリートの配合候補と耐久性・環境効率のトレードオフを検討する材料になる。
🏛政策担当者:公共調達や建設分野の embodied carbon 規制設計において、廃棄物活用型低炭素材料の実現可能性を示す。
📄 Abstract（原文）
Abstract This study investigates the development and performance of high-strength concrete designed for an M65 target grade incorporating an optimized quaternary low-carbon binder system comprising Ordinary Portland Cement (50%), Class F fly ash (20%), ground granulated blast furnace slag (15–25%), and calcined seashell powder (5–15%). Binder proportions were systematically investigated using an S/N-ratio-based comparative screening approach to rank the predefined mixtures based on compressive strength. A comprehensive experimental evaluation was conducted to assess mechanical properties, durability characteristics, and eco-efficiency. Results indicate that the incorporation of industrial and aqua-industrial waste materials significantly reduces carbon footprint and embodied energy compared to conventional OPC-based concrete, while demonstrating continued strength development at later ages and enhancing long-term durability. The developed quaternary binder system demonstrates strong potential as a sustainable and practically viable solution for high-performance concrete, promoting effective waste valorisation and contributing to the objectives of the United Nations Sustainable Development Goals (SDGs 9, 12, and 13).
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1038/s41598-026-73032-6first seen 2026-10-17 04:45:04
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