Mechanical properties of ultra-high-performance fiber-reinforced concrete at cryogenic temperatures

Min Jae Kim, Soonho Kim, Seul Kee Lee, Jun Hwi Kim, Kangwon Lee, Doo Yeol Yoo

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)

Abstract

This paper aims to investigate the influence of exposure to cryogenic temperatures using liquid nitrogen on the mechanical properties of normal concrete (NC) and ultra-high-performance fiber-reinforced concrete (UHPFRC), which is commercially available. This research was carried out to examine the feasibility of using UHPFRC for a liquefied natural gas storage tank. For this, both compressive and direct tensile tests were performed at three different testing conditions: ambient temperature, cryogenic temperature (−170 °C), and recovered ambient temperature after experiencing the cryogenic temperature. The test results showed that the compressive strengths of both NC and UHPFRC were noticeably increased at the cryogenic temperature compared with those at ambient temperature. However, there was no improvement in the tensile strength of NC at the cryogenic temperature, and its tensile strength was deteriorated after exposure to the cryogenic temperature. In contrast with NC, the tensile performance of UHPFRC significantly increased, including improvements in strength, post-cracking stiffness, and energy absorption capacity. Given the superior mechanical properties, it was concluded that UHPFRC is suitable for liquefied natural gas storage tanks.

Original languageEnglish
Pages (from-to)498-508
Number of pages11
JournalConstruction and Building Materials
Volume157
DOIs
Publication statusPublished - 2017 Dec 30

Bibliographical note

Publisher Copyright:
© 2017 Elsevier Ltd

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • General Materials Science

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