超疏水铁尾矿石的制备及其对混凝土性能的影响

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发布时间：2020-01-06 00:00:00

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超疏水铁尾矿石的制备及其对混凝土性能的影响

Preparation of superhydrophobic iron tailings stone and its effect on performance of concrete

2023年第8期

超疏水性；铁尾矿石；混凝土；疏水性；工作性；耐久性能

Superhydrophobicity; Iron tailings stone; Concrete; Hydrophobicity; Workability; Durability

2023年第8期

10.19761/j.1000-4637.2023.08.097.04

赵寅山1，张小兵2，*

1.山东建筑大学土木工程学院，山东济南 250101；2.中铁西北科学研究院有限公司，甘肃兰州 730000

赵寅山1，张小兵2，*

赵寅山,张小兵.超疏水铁尾矿石的制备及其对混凝土性能的影响[J].混凝土与水泥制品,2023(8):97-100.

ZHAO Y S,ZHANG X B.Preparation of superhydrophobic iron tailings stone and its effect on performance of concrete[J].China Concrete and Cement Products,2023(8):97-100.

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1000

摘要：采用硬脂酸和乙醇改性铁尾矿石，制备了超疏水铁尾矿石，研究了硬脂酸的掺量（2%、4%、6%、8%、10%、12%）对超疏水铁尾矿石疏水性的影响，分析了超疏水铁尾矿石的掺量（0、10%、20%、30%）对混凝土疏水性、工作性和吸水率的影响。结果表明：随着硬脂酸掺量的增加，超疏水铁尾矿石的水接触角先增大后减小，当硬脂酸掺量为8%时，超疏水铁尾矿石的水接触角为153°，达到超疏水状态；随着超疏水铁尾矿石掺量的增加，混凝土的疏水性提高，稠度增大，吸水率降低。 Abstract: Superhydrophobic iron tailings stone was prepared by modifying iron tailings powder with stearic acid and ethanol. The effects of the content of stearic acid (2%, 4%, 6%, 8%, 10%, 12%) on the hydrophobicity of superhydrophobic iron tailings stone were studied, and the influence of the content of superhydrophobic iron tailings stone (0%, 10%, 20%, 30%) on the hydrophobicity, workability, and water absorption of concrete was analyzed. The results show that with the increase of stearic acid content, the water contact angle of superhydrophobic iron tailings stone first increases and then decreases. When the stearic acid content is 8%, the water contact angle of superhydrophobic iron tailings stone is 153°, reaching a superhydrophobic state. With the increase of the content of superhydrophobic iron tailings stone, the hydrophobicity of concrete increases, the consistency increases, and the water absorption rate decreases.

英文名 : Preparation of superhydrophobic iron tailings stone and its effect on performance of concrete

刊期 : 2023年第8期

关键词 : 超疏水性；铁尾矿石；混凝土；疏水性；工作性；耐久性能

Key words : Superhydrophobicity; Iron tailings stone; Concrete; Hydrophobicity; Workability; Durability

刊期 : 2023年第8期

DOI : 10.19761/j.1000-4637.2023.08.097.04

文章编号 :

基金项目 :

作者 : 赵寅山1，张小兵2，*

单位 : 1.山东建筑大学土木工程学院，山东济南 250101；2.中铁西北科学研究院有限公司，甘肃兰州 730000

赵寅山1，张小兵2，*

赵寅山,张小兵.超疏水铁尾矿石的制备及其对混凝土性能的影响[J].混凝土与水泥制品,2023(8):97-100.

ZHAO Y S,ZHANG X B.Preparation of superhydrophobic iron tailings stone and its effect on performance of concrete[J].China Concrete and Cement Products,2023(8):97-100.

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摘要

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结论

参考文献

引用本文

Abstract: Superhydrophobic iron tailings stone was prepared by modifying iron tailings powder with stearic acid and ethanol. The effects of the content of stearic acid (2%, 4%, 6%, 8%, 10%, 12%) on the hydrophobicity of superhydrophobic iron tailings stone were studied, and the influence of the content of superhydrophobic iron tailings stone (0%, 10%, 20%, 30%) on the hydrophobicity, workability, and water absorption of concrete was analyzed. The results show that with the increase of stearic acid content, the water contact angle of superhydrophobic iron tailings stone first increases and then decreases. When the stearic acid content is 8%, the water contact angle of superhydrophobic iron tailings stone is 153°, reaching a superhydrophobic state. With the increase of the content of superhydrophobic iron tailings stone, the hydrophobicity of concrete increases, the consistency increases, and the water absorption rate decreases.

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