单一纤维喷射混凝土的力学性能试验研究

复合材料科学与工程 ›› 2013, Vol. 0 ›› Issue (3): 43-46.

单一纤维喷射混凝土的力学性能试验研究

李燕飞^1,*, 杨健辉¹, 丁鹏¹, 赵红兵²

1.河南理工大学土木工程学院,河南焦作 454000;
2.焦作市住建局,河南焦作 454000

收稿日期:2012-07-25 出版日期:2013-05-28 发布日期:2022-03-16
作者简介:李燕飞(1986-) ,女,硕士研究生,主要从事结构的安全性、耐久性、维修与加固方面的研究,building86@163.com。
基金资助:
国家自然科学基金项目(41172317); 深部矿井建设省重点学科开放实验室开放基金(2011KF-01); 河南省教育厅科技攻关项目(2010A560010); 河南理工大学研究生创新基金(2011-M-47)

STUDY ON MECHANICAL PROPERTIES OF SINGLE FIBERS REINFORCED SHOTCRETE OF HIGH PERFORMANCE

LI Yan-fei^1,*, YANG Jian-hui¹, DING Peng¹, ZHAO Hong-bing²

1. School of Civil Engineering of Henan Polytechnic University,Jiaozuo 454000,China;
2. Housing ＆ Constructing Bureau of Jiaozuo,Jiaozuo 454000,China

Received:2012-07-25 Online:2013-05-28 Published:2022-03-16

摘要/Abstract

摘要： 由于隧道施工过程中的塌方现象与喷射混凝土的质量密切相关,故研究强度高、韧性好的高性能喷射混凝土是地下工程施工所亟需研究的内容之一。本文分别对单掺钢纤维、聚丙烯纤维和仿钢纤维喷射混凝土的抗压强度、抗折强度和折压比进行了试验研究,并将其与普通喷射混凝土的力学性能进行了比较。结果表明,适当掺量的纤维喷射混凝土较普通喷射混凝土的抗压强度、抗折强度及折压比都有明显提高;当仿钢纤维掺量为0. 3%时的强度及折压比为最优,并以价格优廉、分散性好、不易锈蚀等优点可以取代钢纤维和聚丙烯纤维在工程中的应用。

关键词: 喷射混凝土, 仿钢纤维, 聚丙烯纤维, 钢纤维, 抗压强度, 抗折强度, 折压比

Abstract: The collapse phenomenon of tunnel in construction process is closely related with the quality of shotcrete,so high strength and toughness on the shotcrete of good performance is one of the research contents of need in the construction of the underground engineering. The experiments of single steel fiber,polypropylene fiber,macrosynthetic fiber reinforced shotcrete on the compressive strength and flexural strength are researched in this paper,which are compared with the mechanical properties of common shotcrete,which shows that the compressive strength,flexural strength,flexural compression ratio of fiber shotcrete with appropriate dosage are obviously improved than common shotcrete; strength and flexural compression ratio of macro-synthetic fibers reinforced shotcrete are the best,whose content is 0. 3%. So steel fiberss and polypropylene fiber can be completely replaced by the macro-synthetic fibers in project application with its excellent price-lim,good dispersion and weak corrosion etc.

Key words: shotcrete, macro-synthetic fiber, polypropylene fiber, steel fiber, compressive strength, flexural strength, flexural compression ratio

中图分类号:

李燕飞, 杨健辉, 丁鹏, 赵红兵. 单一纤维喷射混凝土的力学性能试验研究[J]. 复合材料科学与工程, 2013, 0(3): 43-46.

LI Yan-fei, YANG Jian-hui, DING Peng, ZHAO Hong-bing. STUDY ON MECHANICAL PROPERTIES OF SINGLE FIBERS REINFORCED SHOTCRETE OF HIGH PERFORMANCE[J]. COMPOSITES SCIENCE AND ENGINEERING, 2013, 0(3): 43-46.

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