EVERYTHING YOU MUST KNOW ABOUT FOAMED CONCRETE !!

The full form of CLC is Cellular Lightweight Concrete. It also known as foamed
concrete. CLC is mainly used in construction as it has many benefits than the regular concrete bricks.

This foamed concrete is concrete with Portland cement, fly ash, water, sand
and preformed foam with various proportions. CLC can be easily manufactured at construction site with the same machine moulds used for normal concrete.

The main characteristic of this foamed concrete is its self-compacting property
and the compaction is not required. It is easily flowing through pump to the
mould. This helps to pumped it to the maximum distance and height.

The structure of CLC (Cellular Lightweight Concrete)

The clc mainly contains fly ash, cement and foam.

Fly Ash: The fly ash is a waste product of thermal power plants. It is not easily disposed. Fly ash is mainly used as raw material in CLC which solves the problem of disposal and also it is cost effective. The use of fly ash in clc makes it eco-friendly.

Cement: It is a mixture of Portland Cement, cement-silica, lime-pozzolana, cement-pozzolana and lime-silica. These all have same cell structure and they can get from gas-forming chemicals of foaming agents at measured levels.

Cellular Lightweight Concrete Manufacturing

These bricks are manufactured with mixing of raw ingredients in the concrete mixer. Strength is depending on the material used and also the air pocket content.

The continues CLC is made with mixing of light mortar and preformed foam with pressure in special static mixer.

What is the density of CLC?

Density is measured in KG per m3. The density of concrete is 2400 kg/m3. The foamed concrete density is between 400 kg/m3 to 1800 kg/m3.

The CLC density, is increased by foam filling. The foam is generated by foam-generator. The fly ash in clc decreases the density but it not affects the overall structure and strength. 

Cellular Lightweight Concrete (CLC) are made with different density for various purposes.

Lower Density (400-600 kg/m3): The lower density clc are used for thermal and sound insulations. This density resists the fire, termite and moisture. The CLC is used as an alternating of glass wood, wood wool and thermocol.

Medium Density (800-1000 kg/m3): These bricks are used to make pre-cast blocks which are used for non-load bearing brickwork. It can be manufactured according to design and need.

High Density (1200-1800 kg/m3): This is a structural grade density and used in load-bearing walls and also in the ceiling of low-rise structures. It is also used in formation of partitioning walls and manufacture of pre-cast blocks for load-bearing brickwork. 

Benefits of CLC (Cellular Lightweight Concrete)

Lightweight – The CLC is lightweight and it helps in weight management of building material and craning work.

Fire Resistance – Air pockets in the CLC bricks make it fire resistance. The more density in the clc walls can withstand for hours in fire.

Thermal Insulation – The low density clc bricks are suitable for thermal insulation. It also supports structure.

Sound Absorption – It increases the acoustical insulation.

Eco-friendly – The fly ash is used in the clc.

Cost-Effective – As it is eco friendly and also the production cost is less than concrete block which saves the overall construction cost.

The CLC (Cellular Lightweight Concrete) are termite proof and also resist to freezing. You can make this in cement bricks machine.

Where it is used?

- It is suitable for thermal insulation as bricks and clocks than the flat roofs and non-loading walls.

- Low density bricks are used in old sewer pipes, wells, unused cellars and basements, storage tanks, tunnels and subways.

- The heat-insulated light wall panel are made with clc.

- It also manages to maintain acoustical balance of concrete.

- It is used in light heat resistant ceramic tiles.

- For soil water drainage.

- It prevents freezing in bridges.

- Used for perlite plaster and lightweight concrete. 

Difference between Lightweight Concrete and Aerated Concrete?

Many have confusion between gas or aerated concrete. The bubbles in the aerated concrete are formed chemically by the reaction between aluminium powder, calcium hydro oxide and other alkaline.

There is a mixing of air-entraining agent with concrete in Aerated concrete. And the foam concrete is made with different technique.

Cellular lightweight concrete has various properties according to their use in different building projects in the world. It also prevents the air, water and noise pollution.

These bricks are more suitable as it has many properties like fire resistance, eco friendly and it is also a preferred material for contractors and architects.

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