Grades in AAC block

[Girish Jumrani]

Does Aac block have grades , if yes what grades and their respective compressive strengths

 

[Dnyan Deshmukh]

As per IS 2185 Part 3, there are two grades of AAC blocks.

Grade I and Grade II.

AAC blcoks are classified as Grade I and Grade II, with strength parameters for each category of density. Following table is made according to specification stated in IS 2185 Part 3 for Grade of AAC Block.

Density of block in oven dry condition (kg/cum)	Comp. Strength (N/mm2) for Grade I	Comp. Strength (N/mm2) for Grade II
451 to 550​	2​	1.5​
551 to 650​	4​	3​
651 to 750​	5​	4​
751 to 850​	6​	5​
851 to 1000​	7​	6​

 

[amd007]

AAC blocks - AERATED AUTOCLAVED CONCRETE BLOCKS.

The composition of AAC blocks are as mentioned below:

1. Flyash - 75%
2. Cement-12%
3. Lime - 9%
4. Gypsum-3%
5. Alluminium- 0.5%
6. soluble oils - 0.5%

10 reasons why we should be using it is :

1. High strength
2. Lightweight
3. Cost Saving
4. Accurate dimensions
5. Sound Proof
6. Long lasting
7. Fireproof
8. Thermal insulation
9. workability
10. Eco-friendly

For grades of AAC blocks please refer attachment

.