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Advances in Materials Science and Engineering
Volume 2017, Article ID 5383982, 10 pages
Research Article

Tensile Behavior and Cracking Pattern of an Ultra-High Performance Mortar Reinforced by Polyethylene Fiber

1School of Architecture, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea
2Korea Railroad Research Institute, Cheoldobangmulgwan-ro 176, Uiwang, Gyeonggi-do 16105, Republic of Korea
3Department of Civil Engineering, Hannam University, Daejeon 34430, Republic of Korea

Correspondence should be addressed to Bang Yeon Lee;

Received 13 April 2017; Revised 14 June 2017; Accepted 2 July 2017; Published 2 August 2017

Academic Editor: Enzo Martinelli

Copyright © 2017 Jeong-Il Choi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper presents an experimental study of the compressive strength, tensile behavior (including the tensile strength, tensile strain capacity, and toughness), and cracking patterns of an ultra-high performance mortar (UHPM) reinforced by polyethylene (PE) fiber as well as a discussion of the different tensile behaviors of the UHPM according to the types and contents of fibers used. The UHPM reinforced by microsteel fiber of 1.5 vol% and the UHPM reinforced by PE fibers with three different fiber contents were designed and prepared. A series of experiments was undertaken to assess the effect of PE fiber on the properties of the UHPM. The results found a lower strength level, higher tensile strain capacity and toughness, and a larger crack width in the PE fiber-reinforced UHPM compared to microsteel fiber-reinforced UHPM. It was also demonstrated that tensile strain capacity and toughness of 4.05% and 0.454 MPa m/m, respectively, can be attained when using the proposed polyethylene-fiber-reinforced UHPM.