配合比设计因素对偏高岭土聚合物自应力感知行为的影响

IF 10.8 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Cement & concrete composites Pub Date : 2025-04-15 DOI:10.1016/j.cemconcomp.2025.106093

Krishnan U. Ambikakumari Sanalkumar, En-Hua Yang

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引用次数: 0

摘要

本研究探讨了配合比对地聚合物膏体自感知行为的影响。硅酸盐含量的增加，与高碱含量相对应，导致更高的自感、机械强度和更低的电阻率。混合设计比例的改变会改变孔隙溶液中的离子和地聚合物的微观结构，这是自传感行为和电性能变化的原因。研究表明，由电阻率变化决定的感应系数与抗压强度和电阻率之间存在相关性。在混合设计比中，SiO2/Al2O3比是影响地聚合物自感知行为最重要的参数。研究结果表明，地聚合物在不需要补充导电填料或纤维的情况下具有自传感应用的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Effect of mix design factors on the self-stress-sensing behavior of metakaolin-based geopolymer

The present study investigates the influence of mix design ratios on the self-sensing behavior of geopolymer pastes. The increase in silicate content, corresponding to high alkali content, leads to higher self-sensing, mechanical strength, and lower resistivity. The alterations in mix design ratios result in modifications to the ions in the pore solution and microstructure of the geopolymer, which are accountable for the variations in self-sensing behavior and electrical performance. The study demonstrates a correlation between the sensing coefficient, determined by the changes in resistivity, and the compressive strength and electrical resistivity. Among the mix design ratios, SiO₂/Al₂O₃ ratio is determined to be the most substantial parameter regarding the self-sensing behavior of geopolymer. The findings suggest that geopolymer has the potential for self-sensing applications without the requirement for supplementary conductive fillers or fibers.

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来源期刊

Cement & concrete composites 工程技术-材料科学：复合

CiteScore

18.70

自引率

11.40%

发文量

459

审稿时长

65 days

期刊介绍： Cement & concrete composites focuses on advancements in cement-concrete composite technology and the production, use, and performance of cement-based construction materials. It covers a wide range of materials, including fiber-reinforced composites, polymer composites, ferrocement, and those incorporating special aggregates or waste materials. Major themes include microstructure, material properties, testing, durability, mechanics, modeling, design, fabrication, and practical applications. The journal welcomes papers on structural behavior, field studies, repair and maintenance, serviceability, and sustainability. It aims to enhance understanding, provide a platform for unconventional materials, promote low-cost energy-saving materials, and bridge the gap between materials science, engineering, and construction. Special issues on emerging topics are also published to encourage collaboration between materials scientists, engineers, designers, and fabricators.