AAC Blocks

About

Aerated Auto-claved Block

Fly Ash Blocks (Aerated Auto-claved) are used as a substitute against conventional building masonry such as red clay bricks and have been widely accepted globally because of their beneficial properties. The aerating is caused by a reaction of a mix of various materials mainly consisting of silica (through fly-ash), quicklime, cement and others. Fly ash blocks (Aerated Auto-claved) consist of around 80% air, this aerated material is processed through autoclaving which entails high pressurized curing of aerated materials formed in cellular shapes.

Key features and benefits
Bigger in size
Thermal insulation
Fire resistant
Better compressive strength
Rough surface
Technical assistance

Technical Specifications

Particulars	Units	Values
Size (Length x Height)	mm	650/625/600 x 250/240/200
Size (Width)	mm	75, 100, 125, 150, 200, 225, 250, 300
Size Tolerence (Maximum)	mm	± 1 (width)
Compressive Strength	M/mm²	G1 : ≥ 4.0 \| G2 : ≥ 3.3
Oven Dry Density	Kg/m³	560-640
Fire Resistance	Hours	4 (for 150 mm thick wall without plaster)
Thermal Conductivity (K Value)	W/mk	0.16-0.21
Sound Reduction	dB	37-42
Modulus of Elasticity	Mpa	2040
Thermal Resistance (R Value)	m² K/W	0.95 (200 mm Width @ K = 0.21W/mK)
Thermal Conductance (U Value)	W/m²K	1.05 (200 mm Width) @ K = 0.21W/mK
Drying Shrinkage (Maximum)	%	0.04
Sound Transmission Class Rating	dB	44
Capillary Water Absorption	gm/dm²	180