Cellular Lightweight Concrete Materials, Applications and Advantages

Cellular Lightweight Concrete is also known as CLC. In other words, CLC is also known as foamed concrete. The CLC is widely used for construction purposes as it has various advantages and usage than the traditional concrete bricks.

The foamed concrete is manufactured from mixing of Portland cement, sand, fly ash, water and performed foam in varied proportions. This CLC (Cellular Lightweight Concrete) can be produced at building sites with the use of machines and molds used for normal concrete.

Cellular Lightweight Concrete Materials

One of an important characteristic of foamed concrete is it has self-compacting property as there is no compaction is required. And also, it easily flows out from the pump to fill the mold. With this property is can be pumped to maximum distance and height.

Structure of Cellular Lightweight Concrete

Cellular Lightweight Concrete contains Foam, Fly ash and Cement.

First is Foam: The foam is generated from Foam generator and it produces foam by using an appropriate agent. The air is maintained at 40 to 80 percent of total volume. The size of differs is from 0.1 to 1.5 mm in diameter. The main raw material is used to generate Gentile and organic substance.

Fly ash: Fly ash is generally a waste product form Industries. And the main thing is fly ash is not easily disposed of. As the fly ash is an important ingredient of CLC solves the issue of its disposal and it is also very economical. And this makes also foamed concrete as environment-friendly.

Cement: Cellular lightweight concrete is a homogenous combination of Portland cement, cement-silica, cement-pozzolana, lime-pozzolana, lime-silica pastes all have same cell structure and it is obtained from gas-forming chemicals of foaming agents at measured levels.

Concrete Materials

How to manufacture Cellular Lightweight Concrete

  • The clc batches are manufactured by mixing the raw material in the concrete mixer. The strength changes with the used material and air pocket content.
  • For continuous cellular lightweight concrete is manufactured by mixing light mortar and preformed foam under pressure in a special static mixer.

density of Cellular Light weight Concrete

Density is measured in kg per m 3 . The regular density of concrete is 2400 kg/m 3 . And the foamed concrete density ranges between 400 kg/m 3 to 1800 kg/m 3 .

In the Cellular lightweight concrete, the density is increased by foam filling and it is generated by foam-generator. The using of fly ash in CLC decrease the density but it did not affect the overall strength and structure.

Cellular Lightweight Concrete


Foamed concrete is made in various ranges for a different purpose.

  • Lower density (400-600 kg/m 3 ): This type of low-density CLC is ideal for thermal and sound insulations. These density CLC resist against fire, termite and moisture. And it is also used as a substitute for glass wood, wood wool and thermocol.
  • Medium Density (800-1000 kg/m 3 ): These density bricks are used for manufacture pre-cast blocks for non-load bearing brickwork. Size of these bricks is varied on different design and construction requirements.
  • High Density (1200-1800 kg/m 3 ): This structural grade material used for

Construction of load-bearing walls and ceiling of low rise structures, the formation of partitioning walls, production of pre-cast blocks for load-bearing brickwork.

Advantages of CLC (Cellular Lightweight Concrete)

CLC has various advantages depends on their applications.

  • Lightweight
  • Fire Resistant
  • Thermal Insulation
  • Sound absorption and Acoustical Insulation
  • Environmentally Friendly
  • Cost-Efficient
  • Termite free and resist freezing issues.

Lightweight: CLC is lightweight which helps in weight management of building material and craning work.

Fire Resistance: The air pockets in the structure are mainly responsible for high fire resistance. The high density of clc walls can last for hours in fire.

Thermal Insulation: The low-density foamed concrete is perfect for thermal insulation. At this density, it has a density that supports structure.

Sound Absorption: Low density increases acoustical insulation.

Environmentally Friendly: Low weight fly ash concrete bricks use an industrial waste.

Cost-Effective: As it uses industrial waste but also save the production cost of concrete blocks. And it saves the construction cost.

Cellular lightweight concrete is termite-proof and resistant to freezing issues.

Application of Cellular Lightweight Concrete

  • CLC is preferable for thermal insulation as bricks and clocks instead of flat roofs and non-loading walls.
  • The low strength material is used for old sewer pipes, wells, unused cellars and basements, storage tanks, tunnels and subways.
  • It is also used to the built a heat-insulated light wall panel.
  • It maintains the acoustical balance of concrete.
  • Used in light heat resistant ceramic tiles.
  • Soil water drainage purposes.
  • It is used in a bridge to prevent freezing.
  • Also used for Perlite plaster and Perlite lightweight concrete.

What is the difference between Lightweight concrete and Aerated Concrete?

There is confusion between gas or aerated concrete. In aerated concrete the bubbles are formed chemically with the reaction of aluminum powder with calcium hydro oxide and other alkaline compounds.

Aerated concrete is a mixing of an air-entraining agent to concrete. The foam concrete is manufactured with a different technique.

The CLC has different properties for various requirements thus it is widely used for building projects around the world. It is also contributing to preventing the air, water and noise pollution.

This CLC brick has both properties and profitable and its fire-resistance makes it more preferable as construction material by builders and architects.

Types of Bricks in Masonry Construction – Properties & Uses

There are different types of bricks are used in masonry construction materials as clay, concrete, lime, fly ash etc. Brick is an important construction material which comes in rectangular shape made from clay. The brick is as popular in older days and as modern days as it has low cost and durability.

Types of Bricks used in Masonry Construction

(1) Sun-Dried or Unburnt bricks

(2) Burnt bricks

(1) Sun-Dried or Unburnt Clay Bricks


The Sun-dried or unburnt bricks are less durable and used for temporary structures. There are three mainly three steps for manufactures are clay, moulding and drying.

After moulding process the bricks are left for dried from direct sunlight. The sun-dried bricks are not much strong and also less water and fire resistance. These bricks are not suitable for permanent structures.

(2) Burnt Clay Bricks


Burnt bricks are widely used brick but during manufacturing some bricks are damaged. These bricks are divided into four types

  • First class brick
  • Second class brick
  • Third class brick
  • Fourth class brick

First Class Brick

Fist class bricks have good quality than other types of bricks. These bricks are moulded into table-moulding and burnt in large kilns. As the result these bricks have standard shapes, sharp edges and have smooth surface.

These bricks are more durable and have more strength. The first class bricks are used for permanent structures. These bricks are costlier than other classes due to good qualities.

Second Class Brick

As the name suggests these bricks are moderate quality bricks moulded with ground-moulding process. These bricks are burnt in kilns. As the ground moulding process is used they don’t have smooth surface and edges.

The shape of bricks is also uneven as it mould on ground. These bricks have strength and durability. For smooth finishing the plastering is required.

Third Class Brick

Third class bricks are used in temporary structures as they have poor quality. These bricks are not suitable for rainy areas. These bricks are ground-moulded and burnt in clamps. The bricks have rough surface and edges are not proper.

Fourth Class Bricks

Fourth class bricks have poor quality and not used for construction. These bricks are crushed and used as aggregates for making of concrete. The bricks which are over-burnt and due to this these bricks are brittle. These bricks are easily breakable and not suitable for construction.

(3) Fly Ash Bricks

fly ash bricks

REIT Q Green Machines is leading manufacturer of fly ash brick machine .

Fly ash bricks are made using fly ash and water. The fly ash bricks have better properties than clay bricks and resistant to freeze thaw cycles. These bricks have high concentration of calcium oxide which is used in cement production and due to this it is called self-cementing brick. The fly ash bricks are lightweight and it reduces the weight of structure.

Fly ash bricks are better than clay bricks as they have high fire insulation, high strength, uniform sizes for better joints and plaster, lower water penetration and does not require soaking in water before masonry construction.

(4) Concrete Bricks

Concrete bricks are manufacture using cement, sand, coarse aggregates and water. These bricks are manufactured in various required sizes.

Concrete bricks have advantages over clay bricks as they can be manufacture at construction site, required less mortar, can produce in different colours as adding pigments during production.

The concrete bricks are used in construction of masonry and framed buildings, facades, fences and also provide an excellent look of building.

(5) Engineering Bricks

Engineering bricks have high compressive strength and used for applications like strength, frost resistance, acid resistance, low porosity is required. Engineering bricks are commonly used for basements where chemical and water attacks are prevalent and for damp proof courses.

(6) Sand Lime or Calcium Silicate Bricks

A calcium silicate brick is made from sand and lime and it is known as sand lime bricks. Sand lime bricks are used for various purposes in construction industries like decoration works in building, masonry works etc.

Quality of Bricks at Construction Site

To build any structure, the material is quality should be good. Here is the list for how good bricks are identified at construction site.

– The colour of bricks should be bright and uniform.

– The bricks should be well burned and have smooth surface and sharp edges.

– Thermal conductivity should be less and also sound proof.

– Bricks should not absorb more than 20% of weight when soak in water.

– When two bricks impinge together, the ringing sound must be produce.

– The brick structure must be uniform.

– Bricks should not be break when dropped from 1m height.

– There should be not any scratch when scratch with finger nail.

– There should not be any white deposit on brick after soak in water for 24 hours.

Properties of Bricks

Below properties should be in brick for construction use.

– Hardness

– Compressive Strength

– Absorption

Hardness of Bricks

A brick have resistance against abrasion. This hardness of brick gives permanent nature of brick structure. Due to this property bricks are not damaged by scraping.

Compression  strength of Bricks

Compression strength or crushing strength is property of brick which means the load carried by brick per unit area. As per rule of BIS minimum compression strength of brick should be 3.5N/mm 2 . The crushing strength of bricks reduced when they are soaked in water.

Crushing strength of Bricks Grades
7 – 14 N/mm 2 Class A
>14N/mm 2 Class AA

Absorption of Bricks

Bricks generally absorbs water but in limit. The absorption limit percentage by weight for different types is in below table.

Class of Bricks Water Absorption % by weight
Heavy duty bricks (special made) Only 5%
First class 20%
Second class 22%
Third class 25%

Use of different types of Brick

– 1 st and 2 nd class bricks are used in construction of building, tunnels, pitching works etc.

– 3 rd class and unburnt bricks are used in temporary structures.

– 4 th class bricks are used as aggregate for making concrete.

– Bricks are also used to enhance the beauty of structures.

Usage of Green Technology

Q Green Techcon Private Limited is a market leader in brick and block making a machine. We make both, hydraulic for Fly ash bricks starting from 13 lakh and Vibro machines for all other concrete bricks and blocks (hollow and solid) and Interlocking Pavers starting from 40 lakh .

Q Green Techcon Private Limited has always worked on innovating products that change the way people look at sustainability. Hence, we take pride in calling our products ‘Green Products’ . Our focus is on the usage of fly ash and converting Waste into Wealth . We use the waste of coal to make our final products that are strong, durable and extremely competent. All our end products are 100 percent Green Products and are called the most suitable replacement for clay bricks.

The manufacturing of bricks or blocks is a 4-stage process : batching and mixing, conveying, compaction/vibration and curing. In the entire process, our machines do not require the burning of coal, or for that manner any process that leads to pollution, as against the process used in making clay bricks. Clay bricks production requires top-soil and coal leading to environmental degradation. Not only that, we are also pioneers in innovating a method that minimizes the use of water in the curing process.

The main differentiator when it comes to that is the fact that we try to add a maximum level of automation to our semi-automatic as well as automatic machines so as to lower the labor requirement. This makes the machine self-sufficient, to a great extent, and further lowers the cost of production.

What we stand for is sustainable development and hence our Green Technology vouches for the fact that we are a company that is taking a step forward in developing a nation that is rich and self-sufficient.

For any fly ash brick machine, Inquiry Call Us Now: +91 97320 35946 or Mail Us:  [email protected]

Also Visit Our Site:  www.qgreentech.com


GMME INDIA-2018 is a 4 days event being held from 9th March to 12 March 2018 at the Khelgaon, Udaipur (Rajasthan).

This event will showcase all kind of machinery belongs to the consumer of construction & mining machinery with all type of mineral also.

Because this is a first international exhibition in Udaipur, (Rajasthan) for this kind of minerals & machinery so we hope this exhibition will be the great platform for all, who is attached with the business of construction and mining machine, industrial machines, minerals, cement, paint, powder etc.

Chat with us on WhatsApp

友情链: 新IM电竞平台首页 im电竞直播大厅-新出的电竞竞猜 | im电竞官网 _ im电竞在线官网首页-电竞体育平台排名前十 | IM电竞平台注册 - im电竞官方app下载 电竞体育官网首页 | IM电竞登录-im电竞滚盘官网_电竞体育真人竞猜注册送 | IM电竞网站 _ im电竞比赛竞猜,电竞竞猜直播 | im电竞比分网~亚博IM电竞足球~电竞竞猜贴吧最新 | im电竞下注 IM电竞专业电竞平台-电竞竞猜推荐平台 |