Numerical investigation of the dynamic impact of hybrid basalt fibre on the damage and split way resistance of reinforced concrete aerodrome pavement

The study used Finite Element Analysis (FEA) to examine the influence of aircraft landing loads on the crack resistance of hybrid basalt fibre-reinforced aerodrome pavements. The study replicated a load from an Airbus A321neo on 25 distinct concrete mixtures, each incorporating different proportions of basalt micro and macro fibres. We measured the total deformation of each mix after 7, 14, and 28 days of curing. The results showed that all of the fibre-reinforced mixes had a significant and consistent decrease in deformation compared to the unreinforced control mix. Mix M11, which had 2% Basalt Microfibre and 1% Basalt Macro Fibre, was found to be the best mix. This particular hybrid combination consistently exhibited the lowest total deformation values throughout all three curing periods. For example, after 28 days, the control mix had a deformation of 0.0058265 mm, while Mix M11's deformation was only 0.0057363 mm. This numerical evidence shows that hybrid fibre reinforcement works together to make aerodrome concrete stronger and able to hold more weight. The results indicate that enhancing the hybrid basalt fibre content is an effective approach for creating pavements that are more resilient, long-lasting, and environmentally friendly, which is essential for enhancing safety and operational efficiency in the aviation sector.