Impact of fibre factor and temperature on the mechanical properties of blended fibre-reinforced cementitious composite

Liang Liu; Gui Yang; Jianxin He; Hanlong Liu; Jingwei Gong; Haihua Yang; Wu Yang; Panuwat Joyklad

Case Studies in Construction Materials (Jun 2022)

Impact of fibre factor and temperature on the mechanical properties of blended fibre-reinforced cementitious composite

Liang Liu,
Gui Yang,
Jianxin He,
Hanlong Liu,
Jingwei Gong,
Haihua Yang,
Wu Yang,
Panuwat Joyklad

Affiliations

Liang Liu: College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, PR China; Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention, Urumqi 830052, PR China
Gui Yang: College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, PR China; Corresponding author.
Jianxin He: College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, PR China; Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention, Urumqi 830052, PR China
Hanlong Liu: College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, PR China; College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, PR China
Jingwei Gong: College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, PR China; Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention, Urumqi 830052, PR China
Haihua Yang: College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, PR China; Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention, Urumqi 830052, PR China
Wu Yang: College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, PR China; Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention, Urumqi 830052, PR China
Panuwat Joyklad: Department of Civil and Environmental Engineering, Faculty of Engineering, Srinakharinwirot University, Nakhonnayok 26120, Thailand

Journal volume & issue: Vol. 16
p. e00773

Abstract

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Blended fibres are being utilized in ordinary Portland cement-based materials (CBMs). The inclusion of blended fibre (a mix of several fibre types) may help CBMs perform better under fire. Fibre factor (F.F) and mechanical characteristics of blended fibre-reinforced CBMs are investigated in this research under various temperature conditions. In addition to mechanical characteristics, empirical models for strength properties in response to temperature and F.F. are established. The addition of calcite powder to blended fibres in CBMs increased mechanical strength across the board at all temperatures. However, increasing the temperature from 20 °C to 750 °C resulted in 75%, 79%, and 84% reductions in compression, split tension, and flexure strength of blended fibre-reinforced CBMs, respectively. For compression, split tension, and flexure strength, empirical models with R2 values of 0.98, 0.92, and 0.93 were constructed, with fibre factor and temperature as the major affecting variables. Experimental data for blended fibre-reinforced CBMs revealed that empirical models predicted superior outcomes, which was brought into existence.

Published in Case Studies in Construction Materials

ISSN: 2214-5095 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/case-studies-in-construction-materials

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