石粉含量对C35混凝土性能的影响及机理分析_《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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石粉含量对C35混凝土性能的影响及机理分析

The Influence of Stone Powder Content on the Performance of C35 Concrete and Its Mechanism Analysis

2022年第2期

机制砂；石粉含量；混凝土；力学性能；耐久性能；微观结构；裂缝；电通量

Manufactured sand; Stone powder content; Concrete; Mechanical property; Durability; Microstructure; Crack; Electric flux

2022年第2期

10.19761/j.1000-4637.2022.02.018.05

甘肃省交通运输厅科技项目（2018-11）。

张会平，冯月娥

甘肃智通科技工程检测咨询有限公司，甘肃兰州 730070

张会平，冯月娥

张会平,冯月娥.石粉含量对C35混凝土性能的影响及机理分析[J].混凝土与水泥制品,2022(2):19-21,26.

ZHANG H P,FENG Y E.The Influence of Stone Powder Content on the Performance of C35 Concrete and Its Mechanism Analysis[J].China Concrete and Cement Products,2022(2):19-21,26.

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摘要：为了研究石粉含量对中低强度机制砂混凝土性能的影响，设计了4组不同石粉含量的C35机制砂混凝土，并进行了力学性能、耐久性能以及微观结构测试和分析。结果表明：适量的石粉可以优化混凝土的孔隙结构，有利于提高混凝土的早期抗裂性能、劈裂抗拉强度、抗压强度和抗氯离子渗透性能；过量的石粉会增加混凝土早期开裂风险，且对混凝土强度不利；建议在配制此类低强度等级混凝土时，机制砂的石粉含量应控制在20%以内。 Abstract: In order to study the influence of manufactured sand powder content on the performance of low and medium strength grade of concrete, 4 groups of C35 manufactured sand concrete with different stone powder content were designed, and the mechanical properties, durability and the microstructure were tested and analyzed. The research results show that the appropriate content of stone powder can optimize the pore structure of concrete, which is beneficial to the improvement the early crack resistance, splitting tensile, compressive strength and chloride ion penetration resistance of concrete. Excessive stone powder will increase the risk of concrete cracking at an early age, and it will have a variety of deteriorating effects on the strength of concrete. It is recommended that the content of manufactured sand powder for the preparation of low strength grade concrete should be controlled within 20%.

英文名 : The Influence of Stone Powder Content on the Performance of C35 Concrete and Its Mechanism Analysis

刊期 : 2022年第2期

关键词 : 机制砂；石粉含量；混凝土；力学性能；耐久性能；微观结构；裂缝；电通量

Key words : Manufactured sand; Stone powder content; Concrete; Mechanical property; Durability; Microstructure; Crack; Electric flux

刊期 : 2022年第2期

DOI : 10.19761/j.1000-4637.2022.02.018.05

文章编号 :

基金项目 : 甘肃省交通运输厅科技项目（2018-11）。

作者 : 张会平，冯月娥

单位 : 甘肃智通科技工程检测咨询有限公司，甘肃兰州 730070

张会平，冯月娥

张会平,冯月娥.石粉含量对C35混凝土性能的影响及机理分析[J].混凝土与水泥制品,2022(2):19-21,26.

ZHANG H P,FENG Y E.The Influence of Stone Powder Content on the Performance of C35 Concrete and Its Mechanism Analysis[J].China Concrete and Cement Products,2022(2):19-21,26.

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摘要

参数

结论

参考文献

引用本文

Abstract: In order to study the influence of manufactured sand powder content on the performance of low and medium strength grade of concrete, 4 groups of C35 manufactured sand concrete with different stone powder content were designed, and the mechanical properties, durability and the microstructure were tested and analyzed. The research results show that the appropriate content of stone powder can optimize the pore structure of concrete, which is beneficial to the improvement the early crack resistance, splitting tensile, compressive strength and chloride ion penetration resistance of concrete. Excessive stone powder will increase the risk of concrete cracking at an early age, and it will have a variety of deteriorating effects on the strength of concrete. It is recommended that the content of manufactured sand powder for the preparation of low strength grade concrete should be controlled within 20%.

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石粉含量对C35混凝土性能的影响及机理分析

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