Experimental investigation and analytical modeling of the crack width effect on the fire performance of carbon textile-reinforced concrete composite

  • Tran Manh Tien Department of Mechanisms of Materials, Hanoi University of Mining and Geology (HUMG), 18 Pho Vien street, Bac Tu Liem district, Hanoi, Vietnam
  • Xuan Hong Vu Université de LYON, Université Claude Bernard LYON 1, Laboratoire des Matériaux Composites pour la Construction LMC2, France
  • Emmanuel Ferrier Université de LYON, Université Claude Bernard LYON 1, Laboratoire des Matériaux Composites pour la Construction LMC2, France
  • Pham Duc Tho Faculty of Construction, Hanoi University of Mining and Geology (HUMG), 18 Pho Vien street, Bac Tu Liem district, Hanoi, Vietnam
  • Bui Thi Loan Faculty of Civil Engineering, University of Transport and Communications, 3 Cau Giay street, Dong Da district, Hanoi, Vietnam
Keywords: textile reinforced concrete (TRC), fire performance, analytical model, crack width

Abstract

In comparison with fiber-reinforced polymer (FRP) composite, the textile-reinforced concrete (TRC) presents stability in mechanical performance at elevated temperatures thanks to a thermal protection layer by the cementitious matrix. This paper presents the experimental characterization and analytical modeling for fire performance of carbon TRC under the thermomechanical regime at constant tensile force. The carbon TRC is manufactured from the cementitious matrix with good thermal properties (refractory matrix) and the reinforcement of carbon textiles. In the experiment, the ultimate strength of the carbon TRC specimen was firstly identified from the direct tensile tests at ambient temperature. Afterwards, in the thermomechanical regime, the fire performance of carbon TRC specimens according to 5 loading levels ranging from 10% to 75% related to its ultimate strength was determined. As a result, the effect of crack appearance on this thermomechanical performance was highlighted and analyzed. For the analytical modeling, a model was calibrated with the experimental results to predict the fire performance of carbon TRC by taking into account the effect of crack width.

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Published
16-08-2021
How to Cite
Tien, T. M., Vu, X. H., Ferrier, E., Tho, P. D., & Loan, B. T. (2021). Experimental investigation and analytical modeling of the crack width effect on the fire performance of carbon textile-reinforced concrete composite. Journal of Science and Technology in Civil Engineering (JSTCE) - HUCE, 15(3), 81-92. https://doi.org/10.31814/stce.nuce2021-15(3)-07
Section
Research Papers