Abstract
The effect of accelerated curing and steel fibre volume on ultra-high performance concrete (UHPC) is the focus of this paper. The compressive strength and microstructural properties of UHPC were evaluated under water, steam and heat curing. The results show that heat-cured samples have higher mechanical properties than those undergoing the other curing techniques. Experimental studies were conducted on heat-treated specimens with different steel fibre volumes and aspect ratios (2·5% and 2·0% of 13 mm and 6 mm length fibres of diameter 0·16 mm) to examine stress–strain behaviour, tensile behaviour and flexure behaviour. The stress–strain behaviour of UHPC was evaluated by uniaxial compression tests on cylinders to propose a new stress–strain model for UHPC under compression. Size-dependent and size-independent fracture energies were determined as per the Rilem procedure and the P–δ tail correction method. Flexural and residual strengths were evaluated under four-point bending.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
