aerated concrete blocks and panels

Autoclaved Aerated Concrete (AAC) blocks and panels allow a very easy wall construction. They can easily be cut and stacked like conventional concrete units.

Aerated Blocks and Panels

AAC (Autoclaved Aerated Concrete, or Aerated Concrete, or Cellular Concrete or Porous Concrete) are cheap and flexible blocks and panels for wall and roof construction. Aerated blocks and panels are an alternative to masonry, other concrete materials or recent wall construction materials like ICF and SIP but without offering the high energy-efficiency of ICF or SIP construction.

AAC Aerated Concrete is available in blocks but also in wall and roof panels (and accessorily in lintels).

Aerated panels come in numerous shapes, sizes and thickness: typical panels come with 8-12 inches (20-30 cm) thick, 24-inches (61 cm) in width, and lengths up to 20 feet (6,1 m).

ACC aerated blocks come in 24, 32, and 48 inches (61 cm, 122 cm, 81 cm) long, between 4 to 16 inches (10-40,5 cm) thick, and 8 inches (20 cm) high.

Easy wall construction

Aerated blocks and panels can easily be cut with saws and other conventional tools, and they are light and stackable like conventional concrete blocks (Concrete Masonry Units: CMU).

The lightweight of AAC panels and blocks has obvious advantages in wall construction: it makes shipping and handling easy and economical. Autoclave Aerated Concrete AAC Blocks

Both aerated panels and blocks are cored (and filled…) with grout. The wall strength is obtained through reinforcement bars, located at stated intervals.

The material is easy to finish, too.

Walls Finishes

AAC-built walls support common finishings. They can be painted, plastered, or finished with several claddings (fiber-cement siding is very common). But they shouldn't be left exposed: debris, water, etc. will damage the cellular structure of the walls.

Interior surfaces can be painted, plastered, tiled, sheet rocked… and in some cases and climates (non-humid) they dispense with any finish.

In humid climates, technicians recommend high permeable exterior finishes, and low-vapor permeability interior finishes.