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AAC block

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AAC block

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1. What Is AAC Block?

Autoclaved Aerated Concrete is a high quality building material manufactured from quartz sand ,lime ,cement, aluminum compound and water several natural chemical reactions take place during the manufacturing process that account for AAC ‘s high strength ,light-weight and thermal properties.

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AAC (Autoclaved Aerated Concrete) lightweight blocks (bricks) can be used as external (exterior) wall, internal (interior) wall, partition wall to well replace tradition bricks and precast concrete. The new building material has been used in various kinds of buildings, such as public facilities, industrial constructions, civil housing, hospitals, hotels, schools, stores, supermarkets etc.

2.AAC block Specifications

L(length)	600mm
B (breadth)	100mm,120mm,125mm,150mm,200mm,250mm,300mm
H(height)	200mm,240mm,250mm,300mm,400mm

Bulk density grade				B04			B05	B06	B07
Normal dry density (kg/m3)	Prime (A)≤		400				500	600	700
	Acceptable (B)≤		425				525	625	725
Strength grade (MPa)	Prime (A)		A2.5				A3.5	A5.0	A5.5
	Acceptable (B)		A2.0				A2.5	A3.5	A4.0
Drying contraction (mm/m)	Standard method		0.5				0.5	0.5	0.5
	Rapid method		0.8				0.8	0.8	0.8
Frost resistance	Weight less %≤		5				5	5	4
	Strength (Mpa)≥	Prime (A)			1.60		2.8	4.0	4.5
		Acceptable (B)					2	2.8	3.2
Thermal conductivity	Dry (w/m.k)					0.11	0.13	0.15	0.16

3.AAC Block Advantages

Light weight, good thermal insulation performance, good fireproof performance and do not send out harmful gas, good machinability and absorption function, convenient construction, improve construction efficiency;

4. AAC Block application in daily life