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Conventional bricks	Sanlight AAC blocks	What it means for you
Heavy, clay	Lightweight: one third the density of clay bricks	Light weight and high structural integrity reduce the steel required, lowering construction cost. Blocks are easy to move around site and lift to higher levels.
100 × 190 × 390 mm, 150 × 190 × 390 mm, 200 × 190 × 390 mm	Accurately sized: 600 × 100 × 200 mm, 600 × 150 × 200 mm, 600 × 200 × 200 mm	Bigger blocks mean fewer joints, saving mortar and labour. Faster completion with less labour, for substantial savings across the project.
Not workable	Can be cut, shaped, chiselled and drilled with normal carpentry tools	Achieve the patterns and shapes you want. Ducting for cabling and plumbing is quick and clean.
Wastage as high as 10%	Nil to 1%: blocks are precisely machine-cut	No wastage.

What is AAC, and how is it made?

Autoclaved aerated concrete (AAC) is a lightweight concrete used widely around the world. Cement, lime, fly ash, gypsum, water and aluminium powder are mixed and poured into moulds. The reaction between aluminium and lime forms microscopic hydrogen bubbles that expand the mix into a lower-density concrete. After initial setting it is cut to size and steam-cured in a pressurised chamber. The result is a non-toxic, high-strength, lightweight, airtight material for all walling applications, made without pollutants or hazardous waste.