Chloride Ion Penetration Resistance of Reactive Powder Concrete with Mineral Admixtures

IF 0.7 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science Pub Date : 2024-01-03 DOI:10.5755/j02.ms.34962

Xinmin Yu, Hongji Zhang, Dehong Wang, Y. Ju, Mengxin Kang, Yidan Ma

{"title":"Chloride Ion Penetration Resistance of Reactive Powder Concrete with Mineral Admixtures","authors":"Xinmin Yu, Hongji Zhang, Dehong Wang, Y. Ju, Mengxin Kang, Yidan Ma","doi":"10.5755/j02.ms.34962","DOIUrl":null,"url":null,"abstract":"This study employed the rapid chloride ion penetration test and the salt spray erosion method to examine electric flux changes in mineral-admixed reactive powder concrete (RPC). Variations in the chloride ion content and diffusion coefficient under different erosion durations and depths were also investigated. The impact of mineral admixtures on the chloride penetration resistance was explored. Notably, after mixing fly ash (FA) and granulated blast furnace slag (GGBS), the electric flux values of RPC of each group were significantly reduced, and the electric flux values of RPC of the mixed group were significantly lower than those of the single mixed group and the reference group, in which the electric flux of FA10G10 was reduced by 85.2% compared to the control group; at the same erosion cycle and depth, the chloride ion content and diffusion coefficient of the mixed group were significantly lower than the control group. It shows that the reasonable compounding of mineral admixtures can better exert the \"superposition effect\", improve the compactness inside the matrix, and effectively reduce the chloride ion penetration rate. Considering comprehensively, the FA10G10 group has the best chloride penetration ion resistance effect.","PeriodicalId":18230,"journal":{"name":"Materials Science","volume":"142 51","pages":""},"PeriodicalIF":0.7000,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Science","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.5755/j02.ms.34962","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

This study employed the rapid chloride ion penetration test and the salt spray erosion method to examine electric flux changes in mineral-admixed reactive powder concrete (RPC). Variations in the chloride ion content and diffusion coefficient under different erosion durations and depths were also investigated. The impact of mineral admixtures on the chloride penetration resistance was explored. Notably, after mixing fly ash (FA) and granulated blast furnace slag (GGBS), the electric flux values of RPC of each group were significantly reduced, and the electric flux values of RPC of the mixed group were significantly lower than those of the single mixed group and the reference group, in which the electric flux of FA10G10 was reduced by 85.2% compared to the control group; at the same erosion cycle and depth, the chloride ion content and diffusion coefficient of the mixed group were significantly lower than the control group. It shows that the reasonable compounding of mineral admixtures can better exert the "superposition effect", improve the compactness inside the matrix, and effectively reduce the chloride ion penetration rate. Considering comprehensively, the FA10G10 group has the best chloride penetration ion resistance effect.

查看原文本刊更多论文

含矿物外加剂的反应性粉末混凝土的抗氯离子渗透性能

本研究采用氯离子快速渗透试验和盐雾侵蚀法来研究掺矿物的活性粉末混凝土（RPC）的电通量变化。还研究了不同侵蚀持续时间和深度下氯离子含量和扩散系数的变化。此外，还探讨了矿物掺合料对抗氯离子渗透性的影响。值得注意的是，粉煤灰（FA）和粒化高炉矿渣（GGBS）混合后，各组 RPC 的电通量值明显降低，混合组 RPC 的电通量值明显低于单一混合组和参照组，其中 FA10G10 的电通量比对照组降低了 85.2%；在相同侵蚀周期和深度下，混合组的氯离子含量和扩散系数明显低于对照组。这说明矿物掺合料的合理复配能更好地发挥 "叠加效应"，提高基体内部的密实度，有效降低氯离子渗透率。综合考虑，FA10G10 组抗氯离子渗透效果最好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Materials Science 工程技术-材料科学：综合

CiteScore

1.60

自引率

44.40%

发文量

审稿时长

4-8 weeks

期刊介绍： Materials Science reports on current research into such problems as cracking, fatigue and fracture, especially in active environments as well as corrosion and anticorrosion protection of structural metallic and polymer materials, and the development of new materials.