Fracture Toughness of Nanofiber-Reinforced Concrete on Normal Separation and In-Plane Shear

被引：0
|
作者：
E. A. Sadovskaya
E. N. Polonina
S. N. Leonovich
S. A. Zhdanok
V. V. Potapov
机构：
[1] Belarusian National Technical University,
[2] Qingdao University of Technology,undefined
[3] Perspective Research and Technologies,undefined
[4] Scientific Research Technological Center,undefined
[5] Far Eastern Branch of the Russian Academy of Sciences,undefined
来源：
Journal of Engineering Physics and Thermophysics | 2022年 / 95卷
关键词：
fibrous concrete; fibrous nanoconcrete; fiber; crack resistance; fracture toughness; normal separation; critical stress intensity factor;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Tests were carried out on various nanoconcrete matrices and with different dispersed reinforcement fabric: carbon nanotubes, basalt fiber (polymer, 3 types of steel, and their combinations). It has been established that the value of the stress intensity factor KIIC in the case of normal separation increases most with steel fiber (up to 400%). Polymer fiber exerted the least effect on crack resistance - up to 40%. The influence of dispersed reinforcement on the stress intensity factor in the case of normal separation depends on the type of concrete matrix, on the material of fiber fabric, and on the quantity of the latter.
引用
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页码：945 / 952
页数：7
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