| 纳米CaCO3对混凝土抗冲磨性能影响试验研究 |
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| 引用本文： | 田竞,苏骏,吴鹏,何真,蔡新华.纳米CaCO3对混凝土抗冲磨性能影响试验研究[J].混凝土与水泥制品,2020(6):9-12. |
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| 作者姓名： | 田竞 苏骏 吴鹏 何真 蔡新华 |
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| 作者单位： | 湖北工业大学 土木建筑与环境学院,武汉 430068;武汉大学 水利水电学院,430072;湖北工业大学 土木建筑与环境学院,武汉 430068;武汉大学 水利水电学院,430072 |
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| 摘 要： | 试验研究了不同掺量纳米CaCO3对混凝土力学性能和抗冲磨性能的影响,并通过水化热测试方法研究了纳米CaCO3对混凝土性能影响的机理。试验结果表明,适量的纳米CaCO3可以提升混凝土的力学性能,提高混凝土的抗压强度、劈裂抗拉强度和抗冲磨性能。当纳米CaCO3的掺量为1.5%时,混凝土抗冲磨强度提高约6倍;纳米CaCO3促进了水泥的水化反应,改善了水泥浆体微观结构,提升了整体的密实性。
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| 关 键 词： | 纳米碳酸钙 混凝土力学性能 抗冲磨性能 微观结构 |
Experimental Research on Abrasion Resistance of Concrete Mixed with Nano-CaCO3 |
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| TIAN Jing,SU Jun,WU Peng,HE Zhen,CAI Xin-hua.Experimental Research on Abrasion Resistance of Concrete Mixed with Nano-CaCO3[J].China Concrete and Cement Products,2020(6):9-12. |
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| Authors: | TIAN Jing SU Jun WU Peng HE Zhen CAI Xin-hua |
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| Affiliation: | (School of Civil and Environmental Engineering,Hubei University of Technology,Wuhan 430068,China;State KeyLaboratory of Water Resources and Hydropower Engineering Science,Wuhan University,430072,China) |
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| Abstract: | The effects of Nano-CaCO3 with different content on the mechanical properties and abrasion resistance of concrete were investigated experimentally.The influence mechanism of Nano-CaCO3 on concrete was studied by hydration heat test.The experimental results show that appropriate amount of Nano-CaCO3(not exceed 1.5%)can improve the mechanical properties of concrete,such as the compressive strength,splitting tensile strength and abrasion resistance of concrete.The compressive strength of concrete with 1.5%Nano-CaCO3 is about 6 times than the one without Nano-CaCO3.The results reveal that Nano-CaCO3 promote hydration reaction,accelerate hydration heat release rate,refine the microstructure of cement paste,and enhance the overall compactness. |
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| Keywords: | Nano-CaCO3 Mechanical properties of concrete Abrasion resistance Microstructure |
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