渣基地聚合物复合材料的耐久性和耐火性能

IF 1.5 4区工程技术 Q3 ENGINEERING, CIVIL

Proceedings of the Institution of Civil Engineers-Engineering Sustainability Pub Date : 2022-07-19 DOI:10.1680/jensu.22.00009

A. O. Mawlod, Dillshad K. H. Bzeni

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引用次数: 2

摘要

对碱活化砂浆的保鲜性能和耐久性进行了研究。采用磨粒高炉矿渣(GGBFS)作为粘结剂。碳纤维(CF)和聚丙烯纤维(PP)的加入比例分别为(0、0.75、1.0和1.25)%。同时，还采用了混杂纤维(CF-1.0和PP-0.25;CF-0.5, PP-0.5;CF-0.25和PP-1.0)。通过流动试验对复合材料的新鲜性能进行了研究。同时，对其耐火性、吸水率、吸水率、密度、孔隙率、开花率、硫酸盐侵蚀等耐久性进行了研究。根据研究结果，纤维含量的增加会降低混合物的流动性。同时，当纤维含量为1%时，其耐久性能显著提高。此外，两种纤维都取得了很好的改善。而碳纤维对耐久性能的影响大于聚丙烯纤维。

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Durability and fire resistance performance of slag based geopolymer composite

The fresh and durability properties of alkali activated mortar were investigated in this study. Ground granulated blast furnace slag (GGBFS) was used as a binder material. Both carbon fiber (CF) and polypropylene fibers (PP) were added with a ratio of (0, 0.75, 1.0, and 1.25)% to the weight of the binder. Simultaneously, hybrid fiber was also used (CF-1.0 and PP-0.25; CF-0.5, and PP-0.5; CF-0.25 and PP-1.0). The fresh property of the composite was investigated in terms of flow test. Whereas, the durability properties like fire resistance, water sorptivity, water absorption, density, porosity, efflorescence and sulphate attack were also investigated. According to the findings, increasing the fiber content reduces the flowability of the mixture. Simultaneously, the best fiber content studied was 1%, which significantly enhanced durability properties. In addition, both fibers had achieved excellent improvement. Whereas carbon fiber had more influence than polypropylene fiber regarding durability properties.

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来源期刊

Proceedings of the Institution of Civil Engineers-Engineering Sustainability ENGINEERING, CIVIL-ENGINEERING, CIVIL

CiteScore

3.70

自引率

16.70%

发文量

审稿时长

>12 weeks

期刊介绍： Engineering Sustainability provides a forum for sharing the latest thinking from research and practice, and increasingly is presenting the ''how to'' of engineering a resilient future. The journal features refereed papers and shorter articles relating to the pursuit and implementation of sustainability principles through engineering planning, design and application. The tensions between and integration of social, economic and environmental considerations within such schemes are of particular relevance. Methodologies for assessing sustainability, policy issues, education and corporate responsibility will also be included. The aims will be met primarily by providing papers and briefing notes (including case histories and best practice guidance) of use to decision-makers, practitioners, researchers and students.