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What is Foam Concrete and CLC Blocks

What is Foam Concrete and CLC Blocks?

CLC blocks are made of foam concrete. In this article we will learn more about the types of foam concrete as well as the places they are used. We will also learn about their strength and density. Concrete blocks that are emulsified are costly and come with a few limitations. In comparison to conventional concrete blocks, CLC blocks are more affordable and have a lower amount of capital investment. They are also more robust than concrete blocks of the conventional variety. However, the initial capital investment needed to begin the CLC plant is less than that of aerated plants.

What is foam concrete?

Foam Concrete is a kind of concrete that is light and has a minimum of 20 percent foam. It is also known under the terms Low Density Cellular Concrete, or Light-weight Cellular Concrete. It is a cement-based slurry that must contain at minimum 20% foam before it can be considered a foam concrete. This type of concrete is a fantastic alternative for numerous construction projects as it helps save on both labor and expenses.

This lightweight concrete has a compressive strength that ranges from 5-8 MPa, and a density of around 1000 kg/m3. It can be used in the construction of a home since it offers both strength and insulation. This lightweight concrete is usually manufactured using a slurry composed of fly ash or concrete, in contrast, other manufacturers use pure cement , water and the addition of a foaming agent.

Another benefit to foam concrete is it doesn't need to be compacted. The material sticks to the lines of the subgrade. As a result, it is able to be pumped over long distances using relatively little pressure. It is also very durable and will not degrade. However, foam concrete has a higher price than normal concrete.

Another advantage that foam concrete has is that it has the ability to reduce the weight of structures by as much as 80%. Due to its air content that is evenly all over the body of the concrete. The size of these air bubbles can vary between 0.1 to one millimeter. A foam's density can range between 400 to 1600 kg/m3. It has a high degree of fire resistance , and is an excellent thermal and acoustic insulator. Another advantage to foam concrete is it requires little or no compaction.

Where can CLC blocks used?

Cellular Lightweight Concrete (CLC) blocks offer a number of advantages over regular concrete blocks. The lightweight bricks have lower density because of their low cement and aggregate content. They also perform better in thermal and sound insulation. In addition, they come with a larger dimensions and shape than conventional clay bricks. In previous studies that used recycled plastic as well as glass wastes were used to create cement additives in order to increase compressive strength. It is crucial to remember that the particle size of glass needs to be less that 45 millimeters in order to be efficient as a substitute for cement.

Most often, CLC blocks are manufactured with a foaming agents that is mixed with air and water. The mix is then placed into moulds. After the moulds are filled, the concrete mixture will take between 18 and 24 hours to fully harden. In some instances the use of steam curing in order to shorten the curing time. This type of curing can provide a better quality finish.

CLC bricks are made from polypropylene microfibers. They are a reliable alternative for clay bricks. CLC blocks are an ideal choice for low-cost housing. In addition, polypropylene micro fibers increase the performance of brick and masonry. The resulting product has an approximate density of 2.8 N/m2 which is much higher than the average brick or concrete.

CLC blocks are also environment sustainable. Since the blocks are made from waste materials, they are not contaminated by damaging chemicals and pollute the environment. They are also extremely efficient at insulating and lessen the dead load in a building. They can save money on energy and construction materials for house owners.

density and strength of foam concrete

The strength and density of foam concrete could differ based on the type of material used. In general, foam concrete is composed of cement as well as an aerogel. Because of its nature, foam concrete is prone to shrinkage in chemical form. To avoid this, the mixture is kept in check with several layers of non-reactive powder concrete and mechanical connectors. Additional materials can be added to the mix in order to improve its rigidity and strength.

The high temperatures can cause cracks in foam concrete. The higher in temperature more cracks can occur. A concrete material with 11,000 kg/m3 of density has about one sixth of the thermal conductivity as a normal concrete. So, reducing the density of the concrete will reduce its heating conductivity by 0.04 W/mK.

In addition, because the foamed concrete material is a novel material, there are no standardized test methods for it. The procedure of making the specimens for testing them was based on procedures for ordinary concrete. For example, the compression strength of the concrete was determined according to PN-EN 12390-3:2011 + AC:2012. In addition, the Modulus of Elasticity was calculated as per the instructions to the Research Building Institute No. 194/98. The density of the foam was determined using PN-EN 12390-5:2011.

In the strength and volume of foam concrete, it are dependent on the proportion of foam that is present in the mortar. Its structure is made up of low-mass aggregates, such as expanded clay pumice, and vermiculite. The density of a concrete is significant because it has an impact on its strength, permeability, also thermal qualities. The amount of admixtures that are used in concrete can be a major influence on the properties.

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