FLEXURAL FATIGUE PROPERTIES OF ULTRA-HIGH PERFORMANCE ENGINEERED CEMENTITIOUS COMPOSITES (UHP-ECC)

Author(s): Bin Xi, Qianli Zhong, Lili Sui, Yingwu Zhou and Shuyue Zheng
Paper category: Proceedings
Book title: Proceedings of the 2nd International Conference on UHPC Materials and Structures (UHPC2018-China)
Editor(s): Caijun Shi and Baochun Chen
ISBN: 978-2-35158-219-0
e-ISBN: 978-2-35158-220-6
Publisher: RILEM Publications SARL
Publication year: 2018
Pages: 267-276
Total Pages: 10
Language : English

Abstract: In recent years, the application of engineered cementitious composite (ECC) in structures
subjected to cyclic fatigue loading, such as highway bridges, has become a hot topic.
However, the strength and ductility of conventional ECC are not high enough, limiting its
application in highway bridges under high-stress. In this work, we configured an ultra-high
performance engineered cementitious composite (UHP-ECC) with a compressive strength of
approximately 120 MPa, a tensile strength of up to 12 MPa, and a tensile strain capacity of
more than 8%. The four-point bending test was used to study the fatigue performance of
UHP-ECC at four different stress levels (0.5, 0.65, 0.8, and 0.9). The mid-span deflection of
the specimen, the opening displacement of the bottom of the specimen and the crack width
were monitored. Eventually, the number of fatigue cycles under different stress levels was
obtained.

Online publication : 2018
Publication type : full_text
Public price (Euros) : 0.00