Study on the synergistic mechanism of mechanical response and microstructural evolution in cement-silt-modified aeolian sand
セメント-シルト改良風成砂の力学応答と微細構造進化の相乗メカニズムに関する研究 (AI 翻訳)
Xunchang Li, Chenyu Miao, Bo Yuan, Wei Yang, Kexin Ren, Xuqing Pang
🤖 gxceed AI 要約
日本語
本研究は、セメントとシルトによる風成砂の改良効果を、一軸圧縮試験とSEMを用いて解析。セメント含有量が圧縮強度の主要因であり、材料間の相互作用が充填性を高めることを明らかにした。低炭素建材としての風成砂の活用可能性を示し、高速鉄道路盤への応用を提案。
English
This study investigates the mechanical and microstructural behavior of cement-silt-modified aeolian sand using unconfined compression tests and SEM. Cement content is identified as the key factor, with synergistic interactions enhancing compactness and strength. The findings support low-carbon construction material applications and provide guidance for high-speed railway subgrade in desert regions.
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
日本では砂漠は少ないが、建設用骨材の枯渇や低炭素化が課題。風成砂の改良技術は砂質土の有効活用やセメント使用量削減の観点から応用可能性がある。ただし中国の砂漠地域を対象としており、直接的な日本政策連動は弱い。
In the global GX context
This paper addresses the global challenge of desertification and sustainable construction materials. While not directly tied to TCFD/ISSB frameworks, it contributes to the broader GX agenda of reducing carbon footprint in infrastructure. The empirical data on aeolian sand modification could inform sustainable material selection in arid regions worldwide.
👥 読者別の含意
🔬研究者:Provides experimental data on synergistic effects of cement and silt on aeolian sand strength, useful for geotechnical and materials researchers.
🏢実務担当者:Offers guidance on mix design for aeolian sand-based construction materials in desert regions, potentially reducing reliance on conventional aggregates.
🏛政策担当者:Highlights the potential of using aeolian sand as a low-carbon alternative in infrastructure, relevant for sustainable construction policies in arid regions.
📄 Abstract（原文）
Aeolian sand typically exhibits high porosity and permeability. Enhancing its mechanical properties is crucial for realizing its resource utilization and advancing low-carbon, environmentally friendly applications. As desertification intensifies globally, the abundant availability of aeolian sand presents significant potential for use in infrastructure construction, provided its properties can be effectively improved. In this study, unconfined compression tests and scanning electron microscopy (SEM) were employed to systematically investigate the effects of cement content, soil-sand ratio, and other factors on the compressive strength of modified aeolian sand. Methods such as grey relational entropy analysis were used to quantitatively evaluate the influence of various factors and rank their correlation degrees, thereby clarifying the synergistic mechanisms among them. The results demonstrate that cement content is a pivotal factor affecting the compressive strength of modified aeolian sand. Furthermore, interactions among factors, including cement and silt, collectively enhance material compactness and improve compressive strength. This synergistic mechanism represents a core strategy for enhancing the mechanical properties of aeolian sand. The study provides a scientific basis for designing and constructing modified aeolian sand materials, promotes the application of low-carbon and eco-friendly building materials, and supports the effective utilization of aeolian sand in high-speed railway subgrade construction. It offers theoretical and practical guidance for constructing high-speed railways in desert regions.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1038/s41598-026-35170-9first seen 2026-06-29 07:08:52
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