低炭素・持続可能なフライアッシュ–スラグ系ジオポリマー/SBS改質乳化アスファルト複合材料：適合性と物理化学的特性
Low-Carbon and Sustainable Fly Ash–Slag-Based Geopolymer/SBS-Modified Emulsified Asphalt Composites: Compatibility and Physicochemical Properties (原題)
Hang Yu, Yafeng Qian, Wenjing Xia, Tao Xu
🤖 gxceed AI 要約
日本語
フライアッシュ–スラグ系ジオポリマー（FASGG）とSBS改質乳化アスファルトの複合材料について、分子動力学シミュレーションと実験により適合性と相互作用機構を解明した。N-A–S–Hが最も適合性が高く、APTES添加でさらに向上する。FASGGは乳化を促進し、有機–無機相互貫入網目構造を形成して締固め性を高めるが、過剰添加はひび割れ抵抗を低下させる。
English
This study uses molecular dynamics simulations and macro/micro experiments to clarify the compatibility and interaction mechanisms between fly ash–slag-based geopolymer (FASGG) and SBS-modified emulsified asphalt. N-A–S–H shows superior compatibility, further improved by APTES. FASGG accelerates demulsification and forms a dense organic–inorganic interpenetrating network, though excess FASGG reduces crack resistance.
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
常温再生アスファルト舗装の低炭素化に資する材料研究であり、建設分野のScope 3排出削減やグリーン調達に関心を持つ日本企業・自治体に参考となる。ただし開示制度や政策との直接的な接続は弱い。
In the global GX context
This contributes to the global push for low-carbon construction materials and circular economy in infrastructure, relevant to embodied-carbon reduction in road pavement. It offers material-level evidence for decarbonizing construction supply chains, though it does not directly engage TCFD/ISSB disclosure frameworks.
👥 読者別の含意
🔬研究者:ジオポリマー–アスファルト複合材料の界面相互作用と力学特性に関する分子レベル知見を提供する。
🏢実務担当者:常温再生舗装の低炭素材料選定や配合設計において、FASGG添加量とひび割れ抵抗のトレードオフを考慮する根拠となる。
📄 Abstract（原文）
Abstract The fly ash–slag-based geopolymer (FASGG)/SBS-modified emulsified asphalt (SBS-EA) composite demonstrates significant potential for advancing low-carbon and sustainable cold recycling technologies for asphalt pavements. However, its compatibility and interaction mechanisms remain insufficiently understood. In this study, molecular dynamics simulations and a series of macro- and microscale experiments are conducted to investigate the compatibility between FASGG and SBS-EA and the physicochemical characteristics of the resulting composite. N-A–S–H demonstrates superior compatibility with SBS-EA compared with C-A–S–H and APTES further improves this compatibility. Ca2+ and Na+ in FASGG exhibit strong coordination or ionic interactions with oxygen-containing functional groups in asphalt, resulting in combined chemical–physical adsorption. FASGG accelerates the demulsification of SBS-EA, and the fusion process evolves through four stages. Fluorescence microscopy reveals a dense, dual-phase interpenetrating organic–inorganic structure, in which the continuous SBS-EA phase dominates and FASGG interweaves with SBS-EA to form a cross-linked network. The inorganic gel fills the SBS-EA matrix and forms a three-dimensional entangled network, thereby improving overall compactness. However, excessive FASGG increases surface roughness and tearing, potentially reducing crack resistance. These findings provide theoretical support for improving cold-recycled asphalt pavements and offer insights into the development of high-performance green pavement materials.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1021/acs.langmuir.6c02664first seen 2026-09-17 04:51:08
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