Mechanical Properties of Macro Basalt Fibre Reinforced Self-Compacted High-Performance Concrete Chapter uri icon

abstract

  • The characteristics of self-compacted high-performance concrete (SCHPC) exhibit significant differences when compared to vibrated high-performance concrete (HPC). SCHPC often encompasses a greater proportion of mineral admixtures, higher paste volumes, and reduced binder to water ratios compared to conventional HPC. The incorporation of fibres into HPC results in a substantial improvement in its mechanical characteristics. This study examined the impact of including macro basalt fibres (MBF) on the mechanical properties of SCHPC. Additionally, a comparison was made between the performance of MBF and traditional hooked steel fibres. The MBF is deemed as a type of minibar comprised of basalt fibre reinforced polymers (BFRP). The lengths of the MBF were measured to be 24 mm with diameter of 0.7 mm. The weight percentages of MBF incorporated into SCHPC was 25% only relative to the weight of hooked steel fibre. Hence, this study aimed to evaluate the impact of MBF on several mechanical properties of SCHPC including compressive strength, flexural strength, and tensile strength. The compressive strength and flexural strength exhibited values that demonstrate a comparable level of performance to that of hooked fibres. But the tensile strain of MBF was found to be lower than that of hooked steel fibres. At the end, promoting the use of MBF to replace steel fibre is a novel contribution toward provide durable, sustainable and corrosion free of self-compacted concrete to be used in offshore structure and coastal areas.

publication date

  • 2024

International Standard Book Number (ISBN) 13

  • 9781643685595