Post-cracking Behaviour and Fracture Energy of Synthetic Fibre Reinforced Concrete

Post-cracking Behaviour and Fracture Energy of Synthetic Fibre Reinforced Concrete

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The paper reports the results of experimental programme focused on the effect of various synthetic fibres on fracture properties and ductility of concrete.The fracture energy was assessed on beams with initial notches in three-point bend test.The incorporation of synthetic fibres had a slight effect on mechanical properties of concrete but, at Sensitivity of an Idealized Tropical Cyclone to the Configuration of the Global Forecast System–Eddy Diffusivity Mass Flux Planetary Boundary Layer Scheme the same time, it had a significant influence on the fracture energy by modification of post-cracking behaviour Competition, Drought, Season Length? Disentangling Key Factors for Local Adaptation in Two Mediterranean Annuals across Combined Macroclimatic and Microclimatic Aridity Gradients of concrete.It was found that the modern synthetic fibres might be able to impart significant toughness and ductility to concrete.However, the beneficial effect of fibres depends on their length and flexibility.

The analysis of load-deflection curves obtained made it possible to fit the simple function, describing the post-peak behaviour of fibre reinforced concrete, which can be useful for the calculation of GF value.DOI: http://dx.doi.org/10.5755/j01.

ms.22.4.13246.