The unit weight of an AAC (Autoclaved Aerated Concrete) block can vary depending on its dimensions and specific composition. On average, the unit weight ranges from about 550 to 650 kg/m³ (30 to 34 pounds per cubic foot).

Full form of ACC block is Autoclaved aerated concrete. It is a lightweight, precast, foam concrete building material suitable for producing concrete masonry unit (CMU) like blocks. It is composed of quartz sand, calcined gypsum, lime, cement, water and aluminum powder.

In this article we know about what is unit weight of AAC Block and how we calculate, when we talk about weight of AAC Block, it is calculated by multiplying density (kg/m3) and volume (m3) of block. The regular size of AAC block is 600 mm × 200 mm × 100 mm and their volume is calculated 0.012 m3 and density 600 kg/m3, then weight of acc block is 0.012 m3 × 600 kg/m3 is equal to 7.2 Kg.

**Unit weight/ density of AAC Block**

The typical unit weight of AAC block is range between 550 and 650 kg/m3 (or 30 and 34 pounds per cubic foot). Unit weight is ratio of mass per unit volume. This is unit weight or density of AAC block.

Autoclaved Aerated Concrete is an eco- friendly and certified green building material which is lightweight, load-bearing, high- insulating.

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**Meaning of AAC block** is its products are cured under heat and pressure in an autoclave and there is presence of air in the mixture of ACC block and hard bearing good compressive strength like concrete that why it name is AAC block ( autoclaved aerated concrete).

And compressive strength of ACC block is about 3 to 4.5 N/mm2 and their normal dry density or unit weight is approx 550 – 650 Kg/m3 and wet density or unit weight is 800 Kg/m3.

**Unit weight of ACC block:- **In general, AAC block weighs around 800 Kg per cubic meter in wet condition and in dry condition it will be weigh approximately 600 kg for one cubic meter.

**AAC Block weight**

Weight of AAC Block depending on their size, density and composition of raw material, generally their weight range from 6 to 20kg, for 3″ thick AAC block, it will be weigh around 6 to 7kg, 4″ thick weighs about 8 to 9kg, 5″ thick weighs about 10 to 11kg, 6″ thick weighs about 12 to 13kg, 7″ thick weighs about 14 to 15kg, 8″ thick weighs about 16 to 17kg, 9″ thick weighs about 18 to 19kg & 10″ thick aac block weighs about 20 to 21kg.

AAC block weight**:** The typical weight of a 4″ (24×8×4) AAC block is about 8 kg, a 3″ (24×8×3) AAC block is about 6 kg, a 5″ (24×8×5) AAC block is about 10kg. The 6″ (24×8×6) AAC block weighs about 12 kg, the 8″ (24×8×8) AAC block weighs about 16 kg, the 9″ (24×8×9) AAC block weighs about 18 kg and a 10 inch (24×8×10) AAC block block weighs about 24 kg.

The typical weight of **an** AAC **600** **×** **200** **×** **100** block is about **8** **kg,** **an** AAC **600** **×** **200** **×** **75** block is about **6** **kg,** **an** AAC **600** **×** **200** **×** **125** block is about **10** **kg,** **an** AAC **600** **×** **200** **×** **150** block is about **12** **kg. **A 600×200× 200 block weighs about 16kg, a 600×200× 225 block weighs about 16kg and a 600×200× 250 block weighs about 24kg.

The typical weight of **a** **standard** 4 inch **(24** **x** **8** **x** **4** or **600** **x** **200** **x** **100** mm) AAC block is about **8** **kg.** **Thus,** a typical 4 inch AAC block weighs about 8 kg.

The typical weight of **a** **standard** 3 inch **(24** **x** **8** **x** 3 or **600** **x** **200** **x** 75 mm) AAC block is about 6 **kg.** **Thus,** a typical 3 inch AAC block weighs about 6 kg.

The typical weight of **a** **standard** 5 inch **(24** **x** **8** **x** 5 or **600** **x** **200** **x** **125** mm) AAC block is about 10 **kg.** **Thus,** a typical 5 inch AAC block weighs about 10 kg.

The typical weight of **a** **standard** 6 inch **(24** **x** **8** **x** 6 or **600** **x** **200** **x** **150** mm) AAC block is about 12 **kg.** **Thus,** a typical 6 inch AAC block weighs about 12 kg.

The typical weight of **a** **standard** 8 inch **(24** **x** **8** **x** 8 or **600** **x** **200** **x** 20**0** mm) AAC block is about 16 **kg.** **Thus,** a typical 8 inch AAC block weighs about 16 kg.

The typical weight of **a** **standard** 9 inch **(24** **x** **8** **x** 9 or **600** **x** **200** **x** 225 mm) AAC block is about 18 **kg.** **Thus,** a typical 9 inch AAC block weighs about 18 kg.

The typical weight of **a** **standard** 10 inch **(24** **x** **8** **x** 10 or **600** **x** **200** **x** 25**0** mm) AAC block is about 24 **kg.** **Thus,** a typical 10 inch AAC block weighs about 24 kg.

**How to calculate unit weight of 1 AAC Block ?**

Weight of AAC Block is determined by multiplying volume and their density, volume is calculated by multiplying its length, height and their thickness such as weight of 1 aac block = volume × density, we know dry density of aac block = 600 Kg/m3 & wet density = 800 Kg / m3.

Volume of AAC block is calculated by multiplying all three dimension length height and width such as volume of aac block = (L × H × B)

**Q1) calculate unit weight of aac block having size 600mm × 200mm × 075mm**

Given size = 600 mm × 200 mm × 075 mm

Density in dry = 600 kg/m3

Density in wet condition = 800 kg/m3

Converting size of aac block in meter

Volume = 0.6 m × 0.2 m × 0.075 = 0.009 m3

Weight of 1 acc block = volume × density

Weight in dry condition = 0.009 m3 × 600 kg/m3

Weight in dry condition = 5.4 Kg

Weight in wet condition = 0.009 m3 × 800 Kg/m3

Weight in wet condition = 7.2 Kg

Therefore weight of acc block size 600 mm × 200 mm × 075 mm is range between 5.4 Kg in dry condition and 7.2 Kg in wet condition.

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**Q2) calculate unit weight of 1 aac block having size 600 mm × 200 mm × 100 mm**

Given size = 600 mm × 200 mm × 100 mm

Density in dry = 600 kg/m3

Density in wet condition = 800 kg/m3

Converting size of aac block in meter

Volume = 0.6 m × 0.2 m × 0.1 = 0.012 m3

Weight of 1 acc block = volume × density

Weight in dry condition = 0.012 m3 × 600 kg/m3

Weight in dry condition = 7.2 Kg

Weight in wet condition = 0.012 m3 × 800 Kg/m3

Weight in wet condition = 9.6 Kg

Therefore weight of acc block size 600 mm × 200 mm × 100 mm is range between 7.2 Kg in dry condition and 9.6 Kg in wet condition.

**Q3) calculate unit weight of 1 aac block having size 600 mm × 200 mm × 125 mm**

Given size = 600 mm × 200 mm × 125 mm

Density in dry = 600 kg/m3

Density in wet condition = 800 kg/m3

Converting size of aac block in meter

Volume = 0.6 m × 0.2 m × 0.125 = 0.015 m3

Weight of 1 acc block = volume × density

Weight in dry condition = 0.015 m3 × 600 kg/m3

Weight in dry condition = 9 Kg

Weight in wet condition = 0.015 m3 × 800 Kg/m3

Weight in wet condition = 12 Kg

Therefore weight of acc block size 600 mm × 200 mm × 125 mm is range between 9 Kg in dry condition and 12 Kg in wet condition.

**Q4) calculate unit weight of 1 aac block having size 600 mm × 200 mm × 150 mm**

Given size = 600 mm × 200 mm × 150 mm

Density in dry = 600 kg/m3

Density in wet condition = 800 kg/m3

Converting size of aac block in meter

Volume = 0.6 m × 0.2 m × 0.150 = 0.018 m3

Weight of 1 acc block = volume × density

Weight in dry condition = 0.018 m3 × 600 kg/m3

Weight in dry condition = 10.8 Kg

Weight in wet condition = 0.018 m3 × 800 Kg/m3

Weight in wet condition = 14.4 Kg

Therefore weight of acc block size 600 mm × 200 mm × 150 mm is range between 10.8 Kg in dry condition and 14.4 Kg in wet condition.

**Q5) calculate unit weight of 1 aac block having size 600 mm × 200 mm × 175 mm**

Given size = 600 mm × 200 mm × 175 mm

Density in dry = 600 kg/m3

Density in wet condition = 800 kg/m3

Converting size of aac block in meter

Volume = 0.6 m × 0.2 m × 0.175 = 0.021 m3

Weight of 1 acc block = volume × density

Weight in dry condition = 0.021 m3 × 600 kg/m3

Weight in dry condition = 12.6 Kg

Weight in wet condition = 0.021 m3 × 800 Kg/m3

Weight in wet condition = 16.8 Kg

Therefore weight of acc block size 600 mm × 200 mm × 175 mm is range between 12.6 Kg in dry condition and 16.8 Kg in wet condition.

**Q6) calculate unit weight of 1 aac block having size 600 mm × 200 mm × 200 mm**

Given size = 600 mm × 200 mm × 200 mm

Density in dry = 600 kg/m3

Density in wet condition = 800 kg/m3

Converting size of aac block in meter

Volume = 0.6 m × 0.2 m × 0.2 = 0.024 m3

Weight of 1 acc block = volume × density

Weight in dry condition = 0.024 m3 × 600 kg/m3

Weight in dry condition = 14.4 Kg

Weight in wet condition = 0.024 m3 × 800 Kg/m3

Weight in wet condition = 19.2 Kg

Therefore weight of acc block size 600 mm × 200 mm × 200 mm is range between 14.4 Kg in dry condition and 19.2 Kg in wet condition.

**Q7) calculate unit weight of 1 aac block having size 600 mm × 200 mm × 225 mm**

Given size = 600 mm × 200 mm × 225 mm

Density in dry = 600 kg/m3

Density in wet condition = 800 kg/m3

Converting size of aac block in meter

Volume = 0.6 m × 0.2 m × 0.225 = 0.027 m3

Weight of 1 acc block = volume × density

Weight in dry condition = 0.027 m3 × 600 kg/m3

Weight in dry condition = 16.2 Kg

Weight in wet condition = 0.027 m3 × 800 Kg/m3

Weight in wet condition = 21.6 Kg

Therefore weight of acc block size 600 mm × 200 mm × 225 mm is range between 16.2 Kg in dry condition and 21.6 Kg in wet condition.

**Q8) calculate unit weight of 1 aac block having size 600 mm × 200 mm × 250 mm**

Given size = 600 mm × 200 mm × 250 mm

Density in dry = 600 kg/m3

Density in wet condition = 800 kg/m3

Converting size of aac block in meter

Volume = 0.6 m × 0.2 m × 0.25 = 0.030 m3

Weight of 1 acc block = volume × density

Weight in dry condition = 0.030 m3 × 600 kg/m3

Weight in dry condition = 18 Kg

Weight in wet condition = 0.030 m3 × 800 Kg/m3

Weight in wet condition = 24 Kg

Therefore weight of 1 acc block size 600 mm × 200 mm × 250 mm is range between 18 Kg in dry condition and 24 Kg in wet condition.

**Q9) calculate unit weight of 1 aac block having size 600 mm × 200 mm × 275 mm**

Given size = 600 mm × 200 mm × 275 mm

Density in dry = 600 kg/m3

Density in wet condition = 800 kg/m3

Converting size of aac block in meter

Volume = 0.6 m × 0.2 m × 0.275 = 0.033 m3

Weight of 1 acc block = volume × density

Weight in dry condition = 0.033 m3 × 600 kg/m3

Weight in dry condition = 19.8 Kg

Weight in wet condition = 0.033 m3 × 800 Kg/m3

Weight in wet condition = 26.4 Kg

Therefore weight of 1 acc block size 600 mm × 200 mm × 275 mm is range between 19.8 Kg in dry condition and 26.4 Kg in wet condition.

**Q10) calculate unit weight of 1 aac block having size 600 mm × 200 mm × 300 mm**

Given size = 600 mm × 200 mm × 300 mm

Density in dry = 600 kg/m3

Density in wet condition = 800 kg/m3

Converting size of aac block in meter

Volume = 0.6 m × 0.2 m × 0.300 = 0.036 m3

Weight of 1 acc block = volume × density

Weight in dry condition = 0.036 m3 × 600 kg/m3

Weight in dry condition = 21.6 Kg

Weight in wet condition = 0.036 m3 × 800 Kg/m3

Weight in wet condition = 28.8 Kg

Therefore weight of 1 acc block size 600 mm × 200 mm × 300 mm is range between 21.6 Kg in dry condition and 28.8 Kg in wet condition.