HPFRCHigh Performance Fiber Reinforced Concrete (construction)
HPFRCHigh Performance Fiber Reinforced Cement (construction)
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Varied types of synthetic fibres apart from steel have found their way in forming HPFRC.
In the early days of HPFRC, synthetic fibres monofilaments were used thus reflecting the size and shape of steel and glass employed in concrete those days.
This was done to test the ultimate capacity of the HPFRC in shear since such failure mode was expected in the slab experiments.
This is due to the local deformation of wood around the HPFRC dowel.
The slight loss of the composite action between wood and HPFRC results in a gradual loss of stiffness.
One can see that the nonlinear moment-deformation curve is due to the interfacial properties because both wood and HPFRC will behave linearly when loaded separately.