Improving the Performance of Low-Carbon Ultra-High-Performance Concrete Through the Incorporation of Recycled Coarse Aggregate
再生粗骨材の混入による低炭素超高強度コンクリートの性能向上 (AI 翻訳)
Yongquan Zhang, Xinyue Hao, Weimin Guo, Chengzhe Song, Fan Yang, Meiqi Cao
🤖 gxceed AI 要約
日本語
本研究では、低炭素超高強度コンクリート（UHPC）の性能向上のために再生粗骨材を混入する手法を提案。再生骨材の種類、粒径、含有量が作業性や力学特性に与える影響を調査し、内部相対湿度や体積安定性も評価。さらに水和生成物や微細構造分析により性能向上のメカニズムを解明した。
English
This study proposes incorporating recycled coarse aggregate to improve the performance of low-carbon ultra-high-performance concrete (UHPC). It investigates the effects of recycled aggregate type, particle size, and content on workability and mechanical properties, also evaluating internal relative humidity and volume stability. Hydration products and microstructure analysis reveal mechanisms for improved performance.
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
日本においても建設分野の脱炭素化は喫緊の課題であり、低炭素コンクリートの実用化は重要。本研究成果は、リサイクル骨材を用いたコンクリートの性能向上手法を提供し、日本の建設会社や政策立案者がカーボンニュートラル達成に向けて参考にできる。
In the global GX context
Globally, the construction sector is a major carbon emitter, and improving low-carbon concrete with recycled aggregates supports circular economy and decarbonization. This research provides empirical evidence for enhancing UHPC performance, relevant for sustainable construction practices and policy frameworks like green building standards.
👥 読者別の含意
🔬研究者:Materials science and concrete researchers can learn the effects of recycled aggregate on UHPC performance and the underlying mechanisms.
🏢実務担当者:Construction companies can use this approach to produce more sustainable UHPC with reduced carbon footprint and potentially lower costs.
🏛政策担当者:Regulators can consider promoting recycled aggregate use in high-performance concrete to meet carbon reduction targets in infrastructure.
📄 Abstract（原文）
Supplementary cementitious materials and aeolian sand have been used to produce low-carbon ultra-high-performance concrete (UHPC) due to their beneficial effects on the reduction in production cost and carbon emissions. However, low-carbon UHPC still faces some drawbacks, such as lowered mechanical properties, large shrinkage, and a tendency for cracking. This study proposed an approach to improve the performance of low-carbon UHPC by incorporating recycled coarse aggregate. The effects of recycled coarse aggregate type, particle size, and content on the workability and mechanical properties of low-carbon UHPC were investigated. Moreover, the internal relative humidity and volume stability of UHPC containing recycled coarse aggregate was also explored. At last, the hydration products and microstructure of UHPC was analyzed to shed light on the underlying mechanisms for the improved performance.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/ma19122621first seen 2026-06-20 05:31:03
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