Experimental investigation on compressive strength and chloride permeability of fiber-reinforced concrete with basalt-polypropylene fibers

Niu Ditao; Huang Daguan; Fu Qiang

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Experimental investigation on compressive strength and chloride permeability of fiber-reinforced concrete with basalt-polypropylene fibers

机译：玄武岩-聚丙烯纤维增强纤维混凝土的抗压强度和氯化物渗透性的试验研究

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摘要

This article presents the effects of basalt-polypropylene fibers on the compressive strength and chloride ion resistance of concrete with matrix strength grades C30, C40, and C50. Test results indicated that hybrid fibers can effectively improve the compressive strength of concrete; that the maximum increases in compressive strength of C30, C40, and C50 concrete were 9.18%, 5.06%, and 7.13%, respectively; and that the effect of basalt fiber on compressive strength was greater than that of polypropylene fiber. A suitable quantity of hybrid fibers can effectively improve the chloride ion resistance of concrete. The enhancement was greatest for C50 concrete, in which the chloride diffusion coefficient was reduced by 77.8% compared to the reference concrete. The chloride diffusion coefficient of basalt-polypropylene fiber-reinforced concrete has a strong positive correlation with the coulomb electric flux. However, the hybrid fibers have adverse effects on the compressive strength and chloride ion resistance of concrete when the quantity of fibers is excessive. Therefore, considering the compressive strength and chloride ion resistance of concrete, the total volume fraction of hybrid fibers should not exceed 0.15%.

机译：本文介绍了玄武岩聚丙烯纤维对基体强度等级为C30，C40和C50的混凝土的抗压强度和氯离子抗性的影响。试验结果表明，杂化纤维可以有效提高混凝土的抗压强度。 C30，C40和C50混凝土的抗压强度最大增加分别为9.18％，5.06％和7.13％；玄武岩纤维对压缩强度的影响大于聚丙烯纤维。适量的混合纤维可以有效提高混凝土的耐氯离子性。 C50混凝土的增强作用最大，与参考混凝土相比，氯离子的扩散系数降低了77.8％。玄武岩-聚丙烯纤维增强混凝土的氯离子扩散系数与库仑通量有很强的正相关关系。然而，当纤维数量过多时，杂化纤维对混凝土的抗压强度和耐氯离子性具有不利影响。因此，考虑到混凝土的抗压强度和耐氯离子性，杂化纤维的总体积分数不应超过0.15％。

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来源
《Advances in Structural Engineering》 |2019年第10期|2278-2288|共11页
作者
Niu Ditao; Huang Daguan; Fu Qiang;
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作者单位

Xian Univ Architecture & Technol, State Key Lab Green Bldg Western China, Xian, Shaanxi, Peoples R China|Xian Univ Architecture & Technol, Coll Civil Engn, Xian 710055, Shaanxi, Peoples R China;

Xian Univ Architecture & Technol, Coll Civil Engn, Xian 710055, Shaanxi, Peoples R China;

Xian Univ Architecture & Technol, Coll Civil Engn, Xian 710055, Shaanxi, Peoples R China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
basalt fiber; basalt-polypropylene fiber-reinforced concrete; chloride ion permeability; compressive strength; fiber morphology; polypropylene fiber;

机译：玄武岩纤维;玄武岩-聚丙烯纤维增强混凝土;氯离子渗透性;抗压强度;纤维形态;聚丙烯纤维;

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1. Experimental investigation on compressive strength and chloride permeability of fiber-reinforced concrete with basalt-polypropylene fibers [J] . Niu Ditao, Huang Daguan, Fu Qiang Advances in Structural Engineering . 2019,第10期

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2. A study of tensile and compressive properties of hybrid basalt-polypropylene fiber-reinforced concrete under uniaxial loads [J] . Deng Zhiyun, Liu Xinrong, Yang Xin, Structural concrete . 2021,第1期

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6. Compressive Strength Chloride Permeability and Freeze-Thaw Resistance of MWNT Concretes under Different Chemical Treatments [O] . Xingang Wang, Inkyu Rhee, Yao Wang, -1

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8. Investigation of Properties of High-Performance Fiber-Reinforced Concrete: Very Early Strength, Toughness, Permeability, and Fiber Distribution. [R] . Khakimova, E., Ozyildirim, C. 2017

机译：高性能纤维增强混凝土的性能研究：极早强度，韧性，渗透性和纤维分布。

Experimental investigation on compressive strength and chloride permeability of fiber-reinforced concrete with basalt-polypropylene fibers

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