再生微粉对混凝土抗氯离子渗透性能的影响_《混凝土与水泥制品》杂志社

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发布时间：2020-01-06 00:00:00

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再生微粉对混凝土抗氯离子渗透性能的影响

Effect of recycled micro powder on chloride ion penetration resistance of concrete

2024年第7期

再生混凝土；再生微粉；抗氯离子渗透性能；电通量；氯离子扩散系数

Recycled concrete; Recycled micro powder; Chloride ion penetration resistance; Electrical flux; Chloride ion diffusion coefficient

2024年第7期

10.19761/j.1000-4637.2024.07.107.05

福建省科技厅科技计划引导性项目（2022Y0045）。

徐秀华

福建省建筑科学研究院有限责任公司福建省绿色建筑技术重点实验室，福建福州 350108

徐秀华

徐秀华.再生微粉对混凝土抗氯离子渗透性能的影响[J].混凝土与水泥制品,2024(7):107-110,115.

XU X H.Effect of recycled micro powder on chloride ion penetration resistance of concrete[J].China Concrete and Cement Products,2024(7):107-110,115.

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摘要：研究了分别单掺与复掺再生混凝土粉（RCP）、再生砖粉（RBP）对混凝土抗氯离子渗透性能的影响，并建立了氯离子扩散系数和电通量之间的关系式。结果表明：单掺RCP或RBP时，随着其掺量从0增至30%，试件的电通量和氯离子扩散系数均先减小后增大，说明抗氯离子渗透性能先增强后减弱，RCP和RBP的最佳掺量均为10%；复掺RCP和RBP时，随着RBP占比的增加，试件的电通量和氯离子扩散系数均先减小后增大，最佳mRBP∶mRCP为1∶1；掺再生微粉混凝土的氯离子扩散系数和电通量之间具有良好的线性关系。 Abstract: The effects of single and compound addition of recycled concrete powder(RCP) and recycled brick powder(RBP) on the chloride ion penetration resistance of concrete were studied, and the relationship between chloride ion diffusion coefficient and electrical flux was established. The results show that when RCP or RBP is added alone, as its content increases from 0 to 30%, the electrical flux and chloride ion diffusion coefficient of the specimen first decrease and then increase, indicating that the chloride ion penetration resistance first enhances and then weakens, and the optimal content of RCP and RBP is both 10%. When adding RCP and RBP together, as the proportion of RBP increases, the electrical flux and chloride ion diffusion coefficient of the specimen first decrease and then increase, and the optimal mRBP∶mRCP is 1∶1. There is a good linear relationship between the chloride ion diffusion coefficient and electrical flux of concrete with recycled micro powder.

英文名 : Effect of recycled micro powder on chloride ion penetration resistance of concrete

刊期 : 2024年第7期

关键词 : 再生混凝土；再生微粉；抗氯离子渗透性能；电通量；氯离子扩散系数

Key words : Recycled concrete; Recycled micro powder; Chloride ion penetration resistance; Electrical flux; Chloride ion diffusion coefficient

刊期 : 2024年第7期

DOI : 10.19761/j.1000-4637.2024.07.107.05

文章编号 :

基金项目 : 福建省科技厅科技计划引导性项目（2022Y0045）。

作者 : 徐秀华

单位 : 福建省建筑科学研究院有限责任公司福建省绿色建筑技术重点实验室，福建福州 350108

徐秀华

徐秀华.再生微粉对混凝土抗氯离子渗透性能的影响[J].混凝土与水泥制品,2024(7):107-110,115.

XU X H.Effect of recycled micro powder on chloride ion penetration resistance of concrete[J].China Concrete and Cement Products,2024(7):107-110,115.

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参考文献

引用本文

Abstract: The effects of single and compound addition of recycled concrete powder(RCP) and recycled brick powder(RBP) on the chloride ion penetration resistance of concrete were studied, and the relationship between chloride ion diffusion coefficient and electrical flux was established. The results show that when RCP or RBP is added alone, as its content increases from 0 to 30%, the electrical flux and chloride ion diffusion coefficient of the specimen first decrease and then increase, indicating that the chloride ion penetration resistance first enhances and then weakens, and the optimal content of RCP and RBP is both 10%. When adding RCP and RBP together, as the proportion of RBP increases, the electrical flux and chloride ion diffusion coefficient of the specimen first decrease and then increase, and the optimal m_RBP∶m_RCP is 1∶1. There is a good linear relationship between the chloride ion diffusion coefficient and electrical flux of concrete with recycled micro powder.

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