Overview
Exposure of concrete surface to fire may result in explosive spalling due to trapped vapor pressure.
Concrete reinforced with Duracrete Fibre provide channels for the vapor pressure to dissipate as the fibre melts on exposure to fire.
The reduction in spall damages provides protection to steel reinforcement against direct exposure of to fire, which may otherwise conduct heat and accelerate the action of high temperature.
Incorporation of Duracrete fibres helps delay structural failure allowing more time for safe evacuation from the building.
Illustration
Without PP Fibres explosvie spalling occurs due to trapped vapor pressure.
On exposure to fire, Duracrete fibres in the concrete melt, forcing channels to allow the steam to escape from inside