Title: Characterisation of unidirectional tensile failure performance of steel fibre nano high strength concrete

Authors: Ye He

Addresses: School of Civil Engineering, Hunan City University, Yiyang, 413000, China

Abstract: The addition of steel fibres to concrete can result in changes to its mechanical properties. Therefore, research has been conducted on the characterisation of unidirectional tensile performance failure of steel fibre nano high-strength concrete. Increasing the amount of steel fibre can significantly improve the concrete's crack resistance, tensile strength, and flexural stiffness. However, it also affects the deformation characteristics of concrete and reduces its stiffness. Research has shown that as the steel fibre content increases, the total deformation of concrete increases while the crack propagation width decreases. Excessive steel fibre content can lead to a decrease in the stiffness of concrete and adverse degradation. In practical applications, the appropriate amount of steel fibre should be selected based on the specific situation to ensure the mechanical properties and effectiveness of concrete.

Keywords: steel fibre; nano high-strength concrete; unidirectional stretching; destructive characteristics.

DOI: 10.1504/IJMMP.2023.134769

International Journal of Microstructure and Materials Properties, 2023 Vol.16 No.6, pp.533 - 544

Received: 24 Apr 2023
Accepted: 14 Jul 2023
Published online: 09 Nov 2023 *

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