The application of AITHON A90H to structural concrete substrates can provide up to 240 minutes fire protection by using calculations that determine the thickness of the intumescent coating to be applied to achieve the equivalent in concrete thickness (cover). Australian Standard AS3600:2018 (concrete structures standard) allows the use of a passive fire protection material on concrete in order to increase the fire performance of a member, as long as it has undergone a standard fire resistance test such as AS1530.4:2014.
The fire performance of AITHON A90H has been tested in accordance to EN 13381-3:2015 and has been assessed by Warringtonfire Australia to be in accordance with AS1530.4:2014.
The assessment provides tables indicating the quantity of AITHON A90H needed to achieve the equivalent concrete thickness to attain the required FRL (Fire Resistance Level).
A detailed, in depth temperature profile of an AITHON A90H coated concrete slab and beam can be used to determine the temperature of steel reinforcement at selected FRL’s.
Assessed in accordance to:
AS 1530.4-2014; tested according to EN 13381-3 and classified according to EN 13501-2