Quinn Lite Aircrete Blocks
A complex manufacturing process
that requires a unique blend of raw ingredients in a carefully controlled environment.
Aircrete Thermal Blocks
Locally sourced
raw materials
Best in Ireland
for combined thermal performance and strength
Improve U-Value
overall of your build and reduce heat loss
Creating the mix
Exact quantities
of raw materials including cement, pulverised fly ash (PFA), silt, sand, aluminium and lime are blended together to create a wet mix.
Pouring
The mixture is poured into large oiled moulds and vibrated to remove excess air bubbles.
Curing
The mould is transferred to a pre-curing chamber, where it remains for a period of 2-2.5 hours at 36°C – 40°C.
A chemical reaction takes place between the aluminium and the lime releasing gases which fills the mixture with millions of tiny air pockets, causing the mix to rise and giving the block its lightweight and thermal properties.
The now solid mixture is removed from the mould and tilted before individual blocks are cut using piano wires. Excess material is recycled for use in the next mix to minimise waste.
Steam curing
The cake is steam cured in an autoclave for 12 hours in a very controlled environment. The temperature increases slowly, is held at 180°C for several hours, before gradually declining. Unlike dense or lightweight aggregate blocks which take up to 28 days to reach full strength, Mannok’s aircrete thermal blocks achieve full design strength during this autoclaving process.
Blocks are separated and packaged, with samples from every batch undergoing multiple tests over 48 hours to ensure strength and thermal properties meet their specific requirements.