聚丙烯-玄武岩混杂纤维对陶粒混凝土力学性能的影响

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发布时间：2020-01-06 00:00:00

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聚丙烯-玄武岩混杂纤维对陶粒混凝土力学性能的影响

Influence of Polypropylene-basalt Hybrid Fiber on Mechanical Properties of Ceramsite Concrete

2021年第2期

陶粒混凝土；混杂纤维；抗压强度；抗折强度；劈裂抗拉强度

Ceramsite concrete; Hybrid fiber; Compressive strength; Flexural strength; Splitting tensile strength

2021年第2期

10.19761/j.1000-4637.2021.02.057.04

国家自然科学基金项目（51678234）。

朱红兵1，施旭刚1，李秀2

1.武汉科技大学城市建设学院，湖北武汉 430065；2.武汉交通职业学院，湖北武汉 430065

朱红兵1，施旭刚1，李秀2

朱红兵,施旭刚,李秀.聚丙烯-玄武岩混杂纤维对陶粒混凝土力学性能的影响[J].混凝土与水泥制品,2021(2):57-60.

ZHU H B,SHI X G,LI X.Influence of Polypropylene-basalt Hybrid Fiber on Mechanical Properties of Ceramsite Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(2)::57-60.

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摘要：对掺加聚丙烯-玄武岩混杂纤维的陶粒混凝土进行了抗压强度、抗折强度、劈裂抗拉强度试验，得到了混杂纤维对陶粒混凝土力学性能的影响规律。结果表明：混杂纤维掺量为0.2%时，陶粒混凝土的抗压强度、劈裂抗拉强度、抗折强度提升幅度最大，分别较基准组提高了11.21%、30.73%、15.26%，但掺量过大时陶粒混凝土的力学性能会下降，甚至出现负效应；聚丙烯纤维与玄武岩纤维的混杂比为2∶1时，其对陶粒混凝土的增强效果较好；混杂纤维能增强陶粒混凝土的韧性，对抗折强度和抗拉强度提升效果明显，对抗压强度提升效果较小。 Abstract: The compressive strength, flexural strength and splitting tensile strength tests of ceramsite concrete with polypropylene-basalt hybrid fiber were carried out, and the influence rules of hybrid fiber on the mechanical properties of ceramsite concrete were obtained. The results show that when the hybrid fiber content is 0.2%, the compressive strength, splitting tensile strength and flexural strength of ceramsite concrete have the largest increase, which are increased by 11.21%, 30.73% and 15.26% respectively compared with blank group, but when the hybrid fiber content is too high, the mechanical properties of ceramsite concrete will be decreased or even have negative effect. When the mixing ratio of polypropylene fiber and basalt fiber is 2∶1, the reinforcement effect of ceramsite concrete is great. The toughness of ceramsite concrete can be enhanced by adding hybrid fiber, and the tensile strength and flexural strength are obviously improved, but the effect of improving compressive strength is small.

英文名 : Influence of Polypropylene-basalt Hybrid Fiber on Mechanical Properties of Ceramsite Concrete

刊期 : 2021年第2期

关键词 : 陶粒混凝土；混杂纤维；抗压强度；抗折强度；劈裂抗拉强度

Key words : Ceramsite concrete; Hybrid fiber; Compressive strength; Flexural strength; Splitting tensile strength

刊期 : 2021年第2期

DOI : 10.19761/j.1000-4637.2021.02.057.04

文章编号 :

基金项目 : 国家自然科学基金项目（51678234）。

作者 : 朱红兵1，施旭刚1，李秀2

单位 : 1.武汉科技大学城市建设学院，湖北武汉 430065；2.武汉交通职业学院，湖北武汉 430065

朱红兵1，施旭刚1，李秀2

朱红兵,施旭刚,李秀.聚丙烯-玄武岩混杂纤维对陶粒混凝土力学性能的影响[J].混凝土与水泥制品,2021(2):57-60.

ZHU H B,SHI X G,LI X.Influence of Polypropylene-basalt Hybrid Fiber on Mechanical Properties of Ceramsite Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(2)::57-60.

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引用本文

Abstract: The compressive strength, flexural strength and splitting tensile strength tests of ceramsite concrete with polypropylene-basalt hybrid fiber were carried out, and the influence rules of hybrid fiber on the mechanical properties of ceramsite concrete were obtained. The results show that when the hybrid fiber content is 0.2%, the compressive strength, splitting tensile strength and flexural strength of ceramsite concrete have the largest increase, which are increased by 11.21%, 30.73% and 15.26% respectively compared with blank group, but when the hybrid fiber content is too high, the mechanical properties of ceramsite concrete will be decreased or even have negative effect. When the mixing ratio of polypropylene fiber and basalt fiber is 2∶1, the reinforcement effect of ceramsite concrete is great. The toughness of ceramsite concrete can be enhanced by adding hybrid fiber, and the tensile strength and flexural strength are obviously improved, but the effect of improving compressive strength is small.

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