纳米 CaCO<sub>3</sub>和PVA纤维增强混凝土工作性及力学性能的研究

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发布时间：2020-01-06 00:00:00

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纳米 CaCO₃和PVA纤维增强混凝土工作性及力学性能的研究

Study on the Workability and Mechanical Properties of Nano-CaCO₃and PVA Fiber Reinforced Concrete

2020年3期

纳米CaCO3；PVA纤维；弹性模量；工作性；抗压强度

Nano-CaCO3; PVA fiber; Compressive elastic modulus; Workability; Compressive strength

2020年3期

10.19761/j.1000-4637.2020.03.042.05

国家自然科学基金项目（51678534）；河南省高校科技创新团队支持计划（20IRTSTHN009）；水利部堤防与病害防治工程技术研究中心开放课题基金（2018006）。

张鹏，王磊，王娟，焦美菊

郑州大学水利科学与工程学院，450001

张鹏，王磊，王娟，焦美菊

关键词：纳米CaCO₃；PVA纤维；弹性模量；工作性；抗压强度

Key words：Nano-CaCO₃; PVA fiber; Compressive elastic modulus; Workability; Compressive strength

期刊：2020年3期 No.287 P42-45+54

DOI：10.19761/j.1000-4637.2020.03.042.05

基金项目：国家自然科学基金项目（51678534）；河南省高校科技创新团队支持计划（20IRTSTHN009）；水利部堤防与病害防治工程技术研究中心开放课题基金（2018006）

作者：张鹏，王磊，王娟，焦美菊

单位：郑州大学水利科学与工程学院，450001

张鹏,王磊,王娟,等.纳米CaCO3和PVA纤维增强混凝土工作性及力学性能的研究[J].混凝土与水泥制品,2020(3):42-45,54.

ZHANG P,WANG L,WANG J,et al.Study on the Workability and Mechanical Properties of Nano-CaCO3 and PVA Fiber Reinforced Concrete[J].China Concrete and Cement Products,2020(3):42-45,54.

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1000

摘要：基于坍落度、坍落扩展度、抗压强度和抗压弹性模量试验，研究了体积掺量分别为0.05%、0.1%、0.15%、0.2%的PVA纤维和质量掺量分别为1%、2%、3%、4%的纳米CaCO₃颗粒对掺粉煤灰混凝土工作性和力学性能的影响。结果表明，在一定的掺量范围内，随着纳米CaCO₃掺量的增加，混凝土的抗压强度和抗压弹性模量先增大后减小，当纳米CaCO₃掺量为3% 时，抗压强度和抗压弹性模量达到最大值；随着PVA纤维体积掺量的增加，混凝土抗压强度先增大后减小，而抗压弹性模量整体上呈逐渐减小的趋势，当纤维体积掺量为0.15%和0.05%时，抗压强度和抗压弹性模量分别达到最大值；新拌混凝土的工作性随着纳米CaCO₃和PVA纤维掺量的增加而逐渐降低。
Abstract：The slump, slump spread, compressive strength and compressive elastic modulus tests were carried out, and the effects of PVA fiber with volume content of 0.05%, 0.1%, 0.15%, and 0.2% and nano-CaCO₃ particles with mass content of 1%, 2%, 3%, and 4% on the workability and mechanical properties of fly ash concrete were studied. The results show that the compressive strength and compressive elastic modulus of concrete increase first and then decrease with the increase of nano-CaCO₃ content within a certain range, and when the nano-CaCO₃ content is 3%, the compressive strength and compressive elastic modulus can reach the maximum. The compressive strength increases first and then decreases with the increase of PVA fiber content, while the compressive elastic modulus decreases gradually as a whole, and when the content of PVA fiber are 0.15% and 0.05%, the compressive strength and compressive elastic modulus reach the maximum. The workability of fresh concrete gradually decreases with the increase of nano-CaCO₃ and PVA fiber content.

英文名 : Study on the Workability and Mechanical Properties of Nano-CaCO₃and PVA Fiber Reinforced Concrete

刊期 : 2020年3期

关键词 : 纳米CaCO3；PVA纤维；弹性模量；工作性；抗压强度

Key words : Nano-CaCO3; PVA fiber; Compressive elastic modulus; Workability; Compressive strength

刊期 : 2020年3期

DOI : 10.19761/j.1000-4637.2020.03.042.05

文章编号 :

基金项目 : 国家自然科学基金项目（51678534）；河南省高校科技创新团队支持计划（20IRTSTHN009）；水利部堤防与病害防治工程技术研究中心开放课题基金（2018006）。

作者 : 张鹏，王磊，王娟，焦美菊

单位 : 郑州大学水利科学与工程学院，450001

张鹏，王磊，王娟，焦美菊

关键词：纳米CaCO₃；PVA纤维；弹性模量；工作性；抗压强度

Key words：Nano-CaCO₃; PVA fiber; Compressive elastic modulus; Workability; Compressive strength

期刊：2020年3期 No.287 P42-45+54

DOI：10.19761/j.1000-4637.2020.03.042.05

作者：张鹏，王磊，王娟，焦美菊

单位：郑州大学水利科学与工程学院，450001

张鹏,王磊,王娟,等.纳米CaCO3和PVA纤维增强混凝土工作性及力学性能的研究[J].混凝土与水泥制品,2020(3):42-45,54.

ZHANG P,WANG L,WANG J,et al.Study on the Workability and Mechanical Properties of Nano-CaCO3 and PVA Fiber Reinforced Concrete[J].China Concrete and Cement Products,2020(3):42-45,54.

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参考文献

引用本文

Abstract：The slump, slump spread, compressive strength and compressive elastic modulus tests were carried out, and the effects of PVA fiber with volume content of 0.05%, 0.1%, 0.15%, and 0.2% and nano-CaCO₃particles with mass content of 1%, 2%, 3%, and 4% on the workability and mechanical properties of fly ash concrete were studied. The results show that the compressive strength and compressive elastic modulus of concrete increase first and then decrease with the increase of nano-CaCO₃ content within a certain range, and when the nano-CaCO₃ content is 3%, the compressive strength and compressive elastic modulus can reach the maximum. The compressive strength increases first and then decreases with the increase of PVA fiber content, while the compressive elastic modulus decreases gradually as a whole, and when the content of PVA fiber are 0.15% and 0.05%, the compressive strength and compressive elastic modulus reach the maximum. The workability of fresh concrete gradually decreases with the increase of nano-CaCO₃ and PVA fiber content.

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纳米 CaCO3和PVA纤维增强混凝土工作性及力学性能的研究

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纳米 CaCO₃和PVA纤维增强混凝土工作性及力学性能的研究