黑龙江科技大学学报2025，Vol.35Issue(5)：775-781,7.DOI:10.3969/j.issn.2095-7262.2025.05.013
多尺度纤维掺入对混凝土性能的影响
Influence of multi-scale fiber mix on performance of concrete
周永胜 1姚殿梅2
作者信息
- 1. 陕西铁路工程职业技术学院 高铁工程学院,陕西 渭南 714000
- 2. 陕西省高速公路路政执法总队,西安 710000
- 折叠
摘要
Abstract
This paper aims to effectively grasp the influence of multi-scale fiber addition on the per-formance of concrete and studies the crack resistance,fracture performance and fatigue performance of multi-scale fiber reinforced concrete by conducting plate cracking test,three-point bending notch test,OT fatigue test and 4PB fatigue test.The results show that compared with the single fiber addition and blank group,the initial cracking time of concrete gradually decreases and the total length and area of the cracks gradually increase with the addition of multi-scale fibers.The addition of single or multi-scale fibers can effectively improve the fracture performance of concrete and relatively,the multi-scale fiber addition can improve the fracture toughness and fracture energy more significantly and the multi-scale fiber concrete has better fatigue performance.Comparatively,the multi-scale fiber concrete possesses better crack re-sistance,fracture performance and fatigue performance and the relatively optimal mix ratio of the S15 ex-perimental group with volume dosages of steel fiber,sisal fiber and nanofiber of 1.5%,0.5%and 0.5%respectively.关键词
混凝土/纤维/抗裂性能/断裂性能/疲劳性能Key words
concrete/fiber/crack resistance performance/fracture performance/fatigue perform-ance分类
建筑与水利引用本文复制引用
周永胜,姚殿梅..多尺度纤维掺入对混凝土性能的影响[J].黑龙江科技大学学报,2025,35(5):775-781,7.
