Performance of fire-damaged reinforced concrete slabs strengthened with basalt fabric-reinforced shotcrete

Wan Yang Gao, Jian Guo Dai, Ke Xu Hu, Li Jing Fang

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

This paper presents the results of an experimental study on the efficiency of an innovative basalt fabricreinforced shotcrete (BFRS) system for the strengthening of fire-damaged reinforced concrete (RC) slabs. The parameters examined in this study include: (a) the heat exposure duration of the fire-damaged RC slabs, (b) the types of the cementitious matrix (ECC versus polymer-modified mortar), and (c) the number of layers of basalt fabrics that were used for the BFRS systems. Test results indicated that the flexural capacity of the fire-damaged RC slabs strengthened with the BFRS systems was increased by 68.9-193.4% compared to their un-strengthened fire-damaged counterparts. The use of ECC as a cementitious matrix was found to be an attractive solution as the slabs strengthened with ECC achieved better results in terms of the cracking control, the yield and ultimate loads as well as the higher utilization of basalt fabrics.

Original languageEnglish
Title of host publicationAPFIS 2019 Proceedings - 7th Asia-Pacific Conference on FRP in Structures
EditorsScott T. Smith, Tao Yu, Dilum Fernando, Zhenyu Wang
PublisherAPFIS Conference Series
ISBN (Electronic)9780648752899
Publication statusPublished - 1 Dec 2019
Event7th Asia-Pacific Conference on FRP in Structures, APFIS 2019 - Brisbane, Australia
Duration: 10 Dec 201913 Dec 2019

Publication series

NameAPFIS 2019 Proceedings - 7th Asia-Pacific Conference on FRP in Structures

Conference

Conference7th Asia-Pacific Conference on FRP in Structures, APFIS 2019
CountryAustralia
CityBrisbane
Period10/12/1913/12/19

Keywords

  • Basalt fabrics
  • ECC
  • Fabric-reinforced cementitious matrix
  • Fire damage
  • RC slabs
  • Strengthening

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Materials Science(all)

Cite this