[1]苏 骏,嵇 威,吴 鹏. 不同纤维类型及尺寸对UHPC力学性能的影响[J].湖北工业大学学报,2022,(4):97-102.
　SU Jun,JI Wei,WU Peng. Study on Size Effect of Steel Fiber and PVA Fiber on Mechanical Properties of UHPC[J].,2022,(4):97-102.
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 不同纤维类型及尺寸对UHPC力学性能的影响()
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《湖北工业大学学报》[ISSN:1003-4684/CN:42-1752/Z]

卷:
期数:
2022年第4期
页码:
97-102
栏目:
湖北工业大学学报
出版日期:
2022-08-28

文章信息/Info

Title:
 Study on Size Effect of Steel Fiber and PVA Fiber on Mechanical Properties of UHPC
文章编号:
1003-4684(2022)04-0097-06
作者:
 苏 骏;  嵇 威;  吴 鹏
 湖北工业大学土木建筑与环境学院， 湖北 武汉 430068
Author(s):
 SU Jun; JI Wei; WU Peng
 School of Civil Engin., Architecture and Environment Hubei Univ. of Tech., Wuhan 430068,China
关键词:
 ; 钢纤维;  聚乙烯醇纤维;  UHPC;  尺寸效应;  力学性能
Keywords:
 ; steel fiber;  polyvinyl alcohol fiber;  ultra high performance concrete;  size effect;  tension compression ratio;  bending properties
分类号:
TU599
文献标志码:
A
摘要:
 为研究不同类型纤维及不同试件尺寸对UHPC的力学性能的影响，分别在UHPC中掺入钢纤维及聚乙烯醇纤维（PVA），并进行抗压强度、抗折强度、劈裂抗拉强度及四点弯曲性能试验。研究结果表明，在不同纤维体积掺量下，钢纤维及聚乙烯醇纤维UHPC抗压和抗折强度的尺寸效应十分明显；掺入钢纤维的UHPC抗压及抗拉强度改善效果均优于掺入聚乙烯醇纤维；钢纤维和聚乙烯醇纤维都可提高UHPC 的劈裂抗拉强度和拉压比；钢纤维和聚乙烯醇纤维均可明显改善UHPC的弯曲韧性。
Abstract:
 In order to study the mechanical properties of UHPC mixed with different types of fiber, steel fiber and polyvinyl alcohol fiber (PVA) were added into UHPC, and the compressive strength, flexural strength, splitting tensile strength and four point bending performance tests were carried out. The results show that the size effect of UHPC compressive strength and flexural strength of steel fiber and polyvinyl alcohol fiber is very obvious under different fiber volume fraction; The compressive strength and tensile strength of UHPC with steel fiber are better than those with polyvinyl alcohol fiber; Both steel fiber and polyvinyl alcohol fiber can improve the splitting tensile strength and tension compression ratio of UHPC; Both steel fiber and polyvinyl alcohol fiber can significantly improve the flexural toughness of UHPC.

参考文献/References:

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备注/Memo

备注/Memo:
［收稿日期］ 2021-05-25
［基金项目］ 湖北省自然科学基金（2020CFB860 ）
［第一作者］ 苏 骏（1971-），男，安徽六安人，工学博士，湖北工业大学教授，研究方向为新型材料与结构，工程结构抗震与加固技术
［通信作者］ 嵇 威（1996-），男，江苏扬州人，湖北工业大学硕士研究生，研究方向为纤维混凝土结构力学性能
更新日期/Last Update: 2022-08-29