Applicability of fractal models for characterising pore structure of hybrid basalt–polypropylene fibre-reinforced concrete

IF 3.6 4区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Reviews on Advanced Materials Science Pub Date : 2023-01-01 DOI:10.1515/rams-2022-0272

Bo Liu, Dan Li, Qiang Fu, Lu He, Tianrui Mai

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Abstract

Abstract The pore-structure characteristics of hybrid basalt–polypropylene fibre-reinforced concrete were investigated by using mercury intrusion porosimetry. The applicability of various fractal models in characterising the HBPRC pore structure was compared. The results show that the types and content of fibres show different influences on the cumulative pore volume and fractal characteristics of hybrid basalt-polypropylene fibre-reinforced concrete. Compared with pore-volume and solid mass, the fractal characteristics of pore surface area of hybrid basalt-polypropylene fibre-reinforced concrete is more significant. Furthermore, the pore-surface fractal model that established based on the energy conservation relationship during mercury intrusion is more accurate and effective for the characterization of fractal dimension of hybrid basalt-polypropylene fibre-reinforced concrete. The research results can provide important theoretical guidance for the study of pore structure and fractal characteristics of fibre-reinforced concrete.

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分形模型在玄武岩-聚丙烯纤维混杂混凝土孔隙结构表征中的适用性

摘要采用压汞法研究玄武岩-聚丙烯纤维混杂混凝土的孔隙结构特征。比较了各种分形模型在表征HBPRC孔隙结构中的适用性。结果表明，纤维的种类和含量对玄武岩-聚丙烯纤维混杂混凝土的累积孔隙体积和分形特性有不同的影响。与孔隙体积和固体质量相比，玄武岩-聚丙烯纤维混杂混凝土孔隙表面积的分形特征更为显著。此外，基于压汞过程中能量守恒关系建立的孔隙-表面分形模型对于玄武岩-聚丙烯纤维混杂混凝土分形维数的表征更为准确有效。研究结果可为纤维增强混凝土孔隙结构及分形特性的研究提供重要的理论指导。

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来源期刊

Reviews on Advanced Materials Science 工程技术-材料科学：综合

CiteScore

5.10

自引率

11.10%

发文量

审稿时长

3.5 months

期刊介绍： Reviews on Advanced Materials Science is a fully peer-reviewed, open access, electronic journal that publishes significant, original and relevant works in the area of theoretical and experimental studies of advanced materials. The journal provides the readers with free, instant, and permanent access to all content worldwide; and the authors with extensive promotion of published articles, long-time preservation, language-correction services, no space constraints and immediate publication. Reviews on Advanced Materials Science is listed inter alia by Clarivate Analytics (formerly Thomson Reuters) - Current Contents/Physical, Chemical, and Earth Sciences (CC/PC&ES), JCR and SCIE. Our standard policy requires each paper to be reviewed by at least two Referees and the peer-review process is single-blind.