建築モルタルにおける循環材料ソリューション：技術性能・環境影響・経済的含意—レビュー
Circular Material Solutions in Building Mortars: Technical Performance, Environmental Impacts and Economic Implications—A Review (原題)
Natalia Gasik-Kowalska, Małgorzata Kacprzak, Jolanta Baran, W. Kubissa
🤖 gxceed AI 要約
日本語
セメントモルタルへの循環経済材料（再生骨材、補助セメント質材料、代替結合材、再生練混ぜ水）の適用をレビューした論文。性能は材料種別・置換率・配合に依存し、セメント部分置換でGWPを約10〜40%削減、高置換や代替結合材では条件次第で更なる削減が可能と報告。材料変動性、標準化、長期性能が普及の課題であり、評価手法の調和と実装支援が必要と結論づける。
English
This review examines circular-economy materials in cement mortars—recycled aggregates, supplementary cementitious materials, alternative binders, and recycled mixing water—and their effects on fresh, mechanical, durability, and functional properties plus environmental and economic outcomes. Partial cement substitution typically cuts GWP by ~10–40%, with larger reductions possible at higher replacement levels or with alternative binders under favorable conditions. Material variability, standardization gaps, and long-term performance remain barriers; harmonized assessment methods and better characterization are needed.
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排出と循環調達はSSBJ・有報のサプライチェーン開示と直結する。日本企業が低炭素モルタルを調達・採用する際の技術的根拠として参考になる。
In the global GX context
Construction materials are a major Scope 3 category under CSRD/ISSB disclosure; this review supports procurement decisions and embodied-carbon accounting for low-carbon mortars, though it offers no disclosure-framework analysis itself.
👥 読者別の含意
🔬研究者:循環材料モルタルの性能・環境・経済のトレードオフと評価手法の課題を整理する基礎資料となる。
🏢実務担当者:低炭素モルタル調達やScope 3削減策の検討時に、置換率とGWP削減幅の目安として参照できる。
🏛政策担当者:建設資材の標準化・循環資源利用促進策を設計する際の技術的制約と評価調和の必要性を示す。
📄 Abstract（原文）
The growing demand for sustainable building materials has accelerated the implementation of circular economy principles in the construction sector. Among cement-based materials, mortars offer significant opportunities for utilizing secondary raw materials and industrial by-products due to their compositional flexibility and wide range of applications. This review discusses the application of circular economy material solutions in cement mortars, including recycled aggregates, complementary cementitious materials, alternative binders, and recycled mixing water. Their impact on fresh properties, mechanical properties, durability, and functional properties, as well as related environmental and economic aspects, is analyzed. The studies reviewed indicate that the performance of mortars containing circular materials depends on the material type, its properties, the level of exchange, and the mix composition. Partial cement substitution commonly results in GWP reductions of approximately 10–40%, whereas higher replacement levels, alternative binder systems, recycled fibres, and carbon-storing materials may provide greater reductions under favourable conditions. Many factors influence the environmental and economic benefits, including processing requirements, transportation distances, local availability of secondary resources, and life-cycle assumptions. Despite significant progress in recent years, challenges related to material variability, standardization, and long-term performance still limit the wider use of circular materials in mortar production. Further research should therefore focus on improving material characterization, harmonizing assessment methods, and supporting the practical implementation of circular solutions in the construction sector.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.3390/ma19214553first seen 2026-10-31 05:45:51 · last seen 2026-11-05 06:07:42
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