- ACC is a factory-produced lightweight precast concrete and can be produced as large building blocks, panels, or planks. Manufacturing begins by mixing Portland cement, lime, silica sand or fly ash, water, and aluminum powder or paste, and pouring the slurry into a large mold. If panel reinforcing is necessary, steel bars or welded wire mesh are also put in the mold. The aluminum reacts with the products of hydration in the concrete to release millions of tiny hydrogen gas bubbles and expand the mix to approximately five times its original volume. The hydrogen evaporates and leaves behind a closed-cell, cellular concrete mixture. When the expanded mix has set, the "green" aerated concrete is removed from its mold and cut into blocks or slabs of the required size and configuration. The material is then seam-cured in a pressurized autoclave.
- The results: a fully-hydrated concrete that is lightweight, strong, thermally efficient, and more dimensionally stable than regular concrete.
- AAC turns to rock, forming microscopic crystals of the mineral Tobormorite, a form of calcium silicate hydrate.
WHAT ARE THE CHARACTERISTICS OF AAC?
- AAC can be sawn, drilled and milled with common hand tools.
- AAC has extraordinary insulating qualities.
- AAC is non-combustible.
- AAC is an exceptional acoustic insulation.
- AAC cannot be penetrated by termites or insects.
- AAC is environmentally friendly.
- AAC is lightweight.
WHAT ARE THE ADVANTAGES OF AAC?
- Acoustically beneficial
- Offers design versatility
- Energy efficient
- Exceptional Structural Strength
- Long lasting environmentally friendly (Green)
- Weather resistant
- Mold resistant
- Easy to use
- Fire resistant
- Termite + pest resistant
- Cost effective
- Reduced construction time
- Low maintenance
- Portland cement-based
- Total construction solution
- Strong Monolithic Walls
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