AAC (Autoclaved Aerated Concrete) is Produced By Mixing the Raw Materials Sand or Pulverised Fuel Ash, Cement, Anhydrite (Gypsum), Lime, Water & a Small Quantity of Aluminium Powder.
Birckvision’s Fully Automated Mixing & Dosing Plant WECOMIX Enables Accurate Dosing, Weighing & Mixing of all Raw Materials. The Mixture is then Poured into Moulds, Where Chemical Reactions Cause it to Rise like a Cake.
After the cake has attained sufficient strength, It is removed from the mould & cut with wires & knives into blocks or panels with precision accuracy. Hand holds, tongue & groove are cut before the cake is autoclaved in order to avoid milling into the hardened material a sustainable cost saving measure & an element of our zero system waste concept.
After cutting, the AAC blocks is hardened by autoclaving in a saturated steam atmosphere at a temperature of approx. 180 – 190°C. It is this steam curing that creates the unique crystalline structure & lends AAC its excellent qualities in comparison to building materials which are not steam cured.
After Autoclaving the blocks are packed and are then ready for dispatch to the construction site.
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