高温后PVA-玄武岩混杂纤维高性能混凝土力学性能试验研究

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发布时间：2020-01-06 00:00:00

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高温后PVA-玄武岩混杂纤维高性能混凝土力学性能试验研究

Experimental Study on Mechanical Properties of PVA-basalt Hybrid Fiber High Performance Concrete After High Temperature

2021年第7期

玄武岩纤维；PVA纤维；矿渣微粉；高性能混凝土；高温；力学性能

Basalt fiber; PVA fiber; Slag powder; High performance concrete; High temperature; Mechanical property

2021年第7期

10.19761/j.1000-4637.2021.07.063.05

国家自然科学基金面上项目（51479168）；辽宁省教育厅基金项目（JJL201915402）。

陈晨，张晓东，李曈，范锦泽

辽宁工业大学土木建筑工程学院，辽宁锦州 121001

陈晨，张晓东，李曈，范锦泽

陈晨,张晓东,李曈,等.高温后PVA-玄武岩混杂纤维高性能混凝土力学性能试验研究[J].混凝土与水泥制品,2021(7):63-66,75.

CHEN C,ZHANG X D,LI T,et al.Experimental Study on Mechanical Properties of PVA-basalt Hybrid Fiber High Performance Concrete After High Temperature[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(7):63-66,75.

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摘要：研究了玄武岩纤维掺量、PVA纤维掺量以及矿渣微粉掺量对高温后PVA-玄武岩混杂纤维高性能混凝土（HFHPC）抗压强度和抗折强度的影响。结果表明：200 ℃时，试件的抗压强度有所提高，抗折强度变化不明显，200 ℃后，试件的强度随温度的升高而降低；与素混凝土相比，HFHPC的强度残余率更高；随着玄武岩纤维掺量、PVA纤维掺量的增加，试件强度逐渐增大；10%矿渣微粉对强度的提高贡献最大，掺量大于20%时强度明显减小。 Abstract: The effects of basalt fiber content, PVA fiber content and slag powder content on the compressive strength and flexural strength of PVA-basalt hybrid fiber high performance concrete (HFHPC) after high temperature were studied. The results show that the compressive strength of the specimen increases at 200 ℃, but the flexural strength does not change significantly. After 200 ℃, the strength of the specimen decreases with the increase of temperature. The residual strength rate of HFHPC is higher than that of plain concrete. With the increase of basalt fiber content and PVA fiber content, the strength of the specimen increases gradually. 10% slag powder has the greatest improvement on the strength of the HFHPC, but the strength decreases obviously when the content is more than 20%.

英文名 : Experimental Study on Mechanical Properties of PVA-basalt Hybrid Fiber High Performance Concrete After High Temperature

刊期 : 2021年第7期

关键词 : 玄武岩纤维；PVA纤维；矿渣微粉；高性能混凝土；高温；力学性能

Key words : Basalt fiber; PVA fiber; Slag powder; High performance concrete; High temperature; Mechanical property

刊期 : 2021年第7期

DOI : 10.19761/j.1000-4637.2021.07.063.05

文章编号 :

基金项目 : 国家自然科学基金面上项目（51479168）；辽宁省教育厅基金项目（JJL201915402）。

作者 : 陈晨，张晓东，李曈，范锦泽

单位 : 辽宁工业大学土木建筑工程学院，辽宁锦州 121001

陈晨，张晓东，李曈，范锦泽

陈晨,张晓东,李曈,等.高温后PVA-玄武岩混杂纤维高性能混凝土力学性能试验研究[J].混凝土与水泥制品,2021(7):63-66,75.

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摘要

参数

结论

参考文献

引用本文

Abstract: The effects of basalt fiber content, PVA fiber content and slag powder content on the compressive strength and flexural strength of PVA-basalt hybrid fiber high performance concrete (HFHPC) after high temperature were studied. The results show that the compressive strength of the specimen increases at 200 ℃, but the flexural strength does not change significantly. After 200 ℃, the strength of the specimen decreases with the increase of temperature. The residual strength rate of HFHPC is higher than that of plain concrete. With the increase of basalt fiber content and PVA fiber content, the strength of the specimen increases gradually. 10% slag powder has the greatest improvement on the strength of the HFHPC, but the strength decreases obviously when the content is more than 20%.

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高温后PVA-玄武岩混杂纤维高性能混凝土力学性能试验研究

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