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 - 聚丙烯纤维纤维增强混凝土抗压强度和氯化物渗透性的实验研究

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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 - 聚丙烯纤维对混凝土的抗压强度和氯离子电阻，基质强度等级C30，C40和C50。测试结果表明，混合纤维可以有效地提高混凝土的抗压强度; C30，C40和C50混凝土压缩强度的最大增加分别为9.18％，5.06％和7.13％;并且玄武岩纤维对压缩强度的影响大于聚丙烯纤维的效果。合适量的杂化纤维可以有效地改善混凝土的氯离子电阻。对于C50混凝土，增强最大，其中氯化物扩散系数与参考混凝土相比减少了77.8％。玄武岩 - 聚丙烯纤维增强混凝土的氯化物扩散系数与库仑电量具有强烈的正相关。然而，当纤维量过度时，杂化纤维对混凝土的抗压强度和氯离子电阻具有不利影响。因此，考虑到混凝土的抗压强度和氯化物离子电阻，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 - 聚丙烯纤维钢筋混凝土;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

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
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

机译：单轴载荷下杂交玄武岩聚丙烯纤维增强混凝土拉伸和压缩性能研究
3. Comparative experimental investigations on the compressive impact behavior of fiber-reinforced ultra high-performance concretes using split Hopkinson pressure bar [J] . Hassan Mostafa, Wille Kay Construction and Building Materials . 2018,第DECa10期

机译：霍普金森分体式压力棒对纤维增强超高性能混凝土压缩冲击性能的对比实验研究
4. Experimental Investigation on Shrinkage in High Strength Fiber-Reinforced Concrete and Its Influence on the Shear Capacity of RC Beams Having Shear Reinforcement [C] . Tomohiro Miki, Kosuke Kita, Katsuya Kono International conference on mechanics and physics of creep, shrinkage, and durability of concrete and concrete structures . 2015

机译：高强纤维混凝土的收缩率及其对受剪钢筋混凝土梁抗剪承载力的影响的试验研究
5. Investigation of Strength-Enhancement Mechanism and Size Effect on Ultimate Shear Strength of Steel Fiber-Reinforced Concrete (SFRC) Slender Beams [D] . Zarrinpour, Mohammad Reza. 2016

机译：钢纤维钢筋混凝土（SFRC）纤维梁极限剪切强度的强度增强机理和大小效应研究
6. Compressive Strength Chloride Permeability and Freeze-Thaw Resistance of MWNT Concretes under Different Chemical Treatments [O] . Xingang Wang, Inkyu Rhee, Yao Wang, -1

机译：不同化学处理条件下MWNT混凝土的抗压强度氯化物渗透性和抗冻融性
7. Mechanical properties of various concrete after high temperature exposure Mechanical property of various types of concrete after high temperature exposure is investigated. Considering compressive strength requirement for a vertical element in high rise building, concrete specimens with various design strengths of 35, 80, 100, and 150 MPa were tested. Particularly, the influence of incorporated steel fiber on fire resistance is of interest in this study. Experimental results show that the fire resistance depends on the design strength and steel fiber content. Normal strength concrete (NSC) of a design strength of 35 MPa or high performance concrete (HPC) of 80-100 MPa does not spall when exposed to 100-400 °C of temperature. However, an explosive spalling occurs at 300 °C when the HPCs contain 1 vol. of steel fiber. Ultra-high performance concrete (UHPC) of a design strength of 150 MPa and 1.5 vol. of steel fiber also shows dramatic spalling at 300 °C. The experimental results found in this study can contribute to a better understanding of the behaviors of HPC and UHPC under fire and the role of steel fiber on the fire resistance. [O] . 2017

机译：研究了高温暴露后各种混凝土高温曝光机械性能各种混凝土的机械性能。考虑到高层建筑中垂直元件的抗压强度要求，测试了35,80,100和150MPa各种设计强度的混凝土试样。特别是，在这项研究中，掺入钢纤维对耐火性的影响。实验结果表明，耐火性取决于设计强度和钢纤维含量。在暴露于100-400°C的温度时，80-100MPa的设计强度为35MPa或高性能混凝土（HPC）的正常强度混凝土（NSC）不会击落。然而，当HPC含有1体积的钢纤维的百分比时，爆炸性剥落发生在300℃。超高性能混凝土（UHPC）的设计强度为150 MPa和1.5 Vol。钢纤维的百分比也显示出300℃的剧烈剥落。本研究中发现的实验结果可以有助于更好地了解在火灾中的HPC和UHPC的行为以及钢纤维对耐火性的作用。
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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