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Analysis of the Effect of Kevlar Fibers on Abrasion Resistance, Flexural Strength and Hydraulic Conductivity Coefficient of Silica Fume Concretes
Iranian Journal of Science and Technology, Transactions of Civil Engineering ( IF 1.7 ) Pub Date : 2020-04-02 , DOI: 10.1007/s40996-020-00396-8
Kamal Rahmani , Saber Piroti , Mohsen Ghameian

Reinforcing fiber and silica fume of concrete can be considered as one of the most widely used additives. In this study, with a review of the history and advantages of using silica fume and polypropylene fibers in concrete, 380 concrete laboratory samples were constructed, of which 25 mixing designs with water–cement ratio of 0.35 and fiber content of 0.2, 0.3, 0.4 and 0.5 of concrete volume and 7% silica fume were prepared according to the ACI standard in their manufacturing. In the present research, samples of Kevlar fiber containing silica fume were tested under flexural strength, abrasion resistance and hydraulic conductivity coefficient. According to achieved results, the optimum amount of fiber used for flexural strength is 0.4% and the hydraulic conductivity coefficient and abrasion resistance of 0.3% volumetric concrete with 7% silica fume were used in concrete mixing.

中文翻译:

芳纶纤维对硅灰混凝土耐磨性、抗弯强度和导水系数影响的分析

混凝土的增强纤维和硅粉可被认为是应用最广泛的添加剂之一。本研究回顾了在混凝土中使用硅粉和聚丙烯纤维的历史和优势,构建了 380 个混凝土实验室样品,其中 25 个混合设计,水灰比为 0.35,纤维含量为 0.2、0.3、0.4 0.5 的混凝土体积和 7% 的硅粉在其制造过程中按照 ACI 标准制备。在本研究中,对含有硅粉的 Kevlar 纤维样品进行了弯曲强度、耐磨性和导水系数测试。根据取得的结果,抗弯强度的最佳纤维用量为0.4%,水力传导系数和耐磨性为0。
更新日期:2020-04-02
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