Performance Evaluation of Ultra-high Performance Concrete (UHPC) and Ultra-high Performance Fibre Reinforced Concrete (UHPFRC) in Pavement Applications
Arabian Journal for Science and Engineering(2024)
摘要
UHPC and UHPFRC are distinguished materials that are utilised either partially as an overlay on an existing pavement or completely as a thin wearing slab over a base course in pavements. However, their full-scale structural applications are limited because of the significant amount of shrinkage and higher cost as compared to conventional concrete. In this article, to reduce shrinkage, UHPC and UHPFRC are developed using appreciable amount of 10 mm (nominal size) coarse aggregate by adjusting the mix of pavement quality concrete (PQC). In addition, their mechanical properties, abrasion, and shrinkage strains have been analysed. Further, extensive fatigue analysis of UHPC and UHPFRC was performed with significant number of samples. The results showed that UHPC mix exhibited a compressive strength of 100.21 MPa, a flexural strength of 11.41 MPa, and an abrasion resistance of 8.02
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关键词
Coarse aggregate,Abrasion resistance,Shrinkage strain,Fatigue,Stress level
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