Mechanical performance of sprayable Ultra High Toughness Cementitious Composites

被引：0

作者：

Xu, Shilang ^{[1
,2
]}

Zhou, Bin ^{[1
]}

Li, Qinghua ^{[1
]}

Wu, Yuxing ^{[1
]}

机构：

[1] Institute of Advanced Engineering Structures and Materials, Zhejiang University, Hangzhou

[2] Hangzhou Guhua Composite Materials Technology Co. Ltd, Hangzhou

来源：

Shuili Xuebao/Journal of Hydraulic Engineering | 2015年 / 46卷 / 05期

关键词：

Multiple cracking pattern; Spray; Strain-hardening; UHTCC;

D O I：

10.13243/j.cnki.slxb.20141164

中图分类号：

学科分类号：

摘要：

Ultra High Toughness Cementitious Composites (UHTCC for short), is a kind of high performance fiber reinforced composite with good deformability and crack-controlling ability. Thus, UHTCC is particularly suitable for strengthening and repair of hydraulic structures. However, traditional UHTCC will cause pump difficulty, tube plugging and other coherent problems if using spray method. These problems would limit the material engineering application to some degree. A new design of sprayable UHTCC is introduced in this paper, it has several advantages, such as quite low rebound degree, continuously spray process with seldom tube plugging problems, uniform fiber distribution. Mechanical tests are carried out including compression test, three-point bending test and direct tension test. The results show that sprayable UHTCC has quite good mechanical properties and retaining multiple crack pattern, which can meet the requirement of hydraulic structures. ©, 2015, China Water Power Press. All right reserved.

引用

页码：619 / 625

页数：6

共 7 条

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