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What is Foam Concrete and CLC Blocks

What exactly is Foam Concrete and CLC Blocks?

CLC blocks are constructed of foam concrete. In this article we will be able to learn more about the forms of foam concrete and where they are used. Also, we will learn about their density and strength. Aerated concrete blocks can be expensive and have certain limitations. Compared to conventional concrete blocks, CLC blocks are more affordable and have a smaller capital investment. Furthermore, they are more robust than concrete blocks of the conventional variety. However, the initial amount required to set up one CLC plant is less than the aerated concrete plants.

Is foam concrete a thing?

Foam concrete refers to a type of lightweight concrete which has at least 20 percent of foam. It is also referred to in the industry as Low Density Cellular Concrete, or Leichter Cellular Concrete. It is a cement-based slurry that must contain at minimum 20% foam to be considered as foam concrete. This type of concrete is an excellent option for many construction jobs, because it can save on costs and labor.

This lightweight concrete has a compressive strength between 5-8 MPa. It has a density approximately 1000 kg/m3. It can be used to construct houses since it's strong and offers insulation. The lightweight concrete is normally manufactured using a slurry composed of fly ash or concrete, however, some vendors use pure cement and water with an ingredient that foams.

Another benefit of foam concrete is that it does not require compacting. The material sticks to contours of the subgrade. In turn, it is able to be pumped for extended distances with relatively little pressure. Also, it is extremely durable and doesn't degrade. However, foam concrete has a higher price than regular concrete.

Another benefit for foam concrete is that it has the ability to reduce the weight of a structure by up to an 80%. Due to its air content air bubbles are evenly distributed throughout the material. The size of the air bubbles can vary from 0.1 to 1 millimeter. The density of foam concrete is between 400 to 1600 kg/m3. It is extremely resistant to fire. of fire resistance . It's also an excellent thermal and acoustic insulator. Another benefit from foam concrete is that it needs no compaction or vibration.

Where can CLC blocks employed?

Cellular Lightweight Concrete (CLC) blocks have a variety of advantages over conventional concrete blocks. The lightweight bricks have lower density because of their aggregate and cement contents, and are more suitable for thermal and sound insulation. Also, these bricks have larger shape and size than traditional clay bricks. In previous studies, recycled plastic and glass wastes were employed as cement additives that could improve the compressive strength. It is important to note that the particle size of glass should not exceed 45 millimeters to be effective as a substitute for cement.

Usually, CLC blocks are manufactured with a foaming agent that is mixed with air and water. The mix is then pouring into molds. After it is poured, the concrete mixture needs between 18 to 24 hours to fully harden. In certain cases steam curing is employed to reduce the curing time. This type of curing also offers a superior finish.

CLC bricks are made of polypropylene micro fibers. These fibers are a reliable alternative to clay bricks . It is an excellent choice for affordable housing. Polypropylene micro fibers can improve the performance of brick and masonry. The resultant product has the density of 2.8 N/m2 This is significantly more than that of typical brick or concrete.

CLC blocks are eco sustainable. Since they are made from recycled materials, they are free of harmful chemicals , and they do not emit harmful pollutants into the air. Furthermore, they're great insulators , and they help decrease the dead load of a building. They are a great way to save money on energy and construction materials for home owners.

strength and density of foam concrete

The strength and density of foam concrete can differ based on the type of material employed. Generally, foam concrete contains cement as well as an aerogel. Due to its composition, foam concrete is susceptible to shrinkage in chemical form. To reduce this, the mix is controlled by the addition of two to three layers of concrete as well as mechanical connectors. The addition of additional materials to the mix to increase the stiffness and strength.

High temperatures can cause cracks in concrete foam. The higher it is, greater cracks will develop. A concrete material with 1,000 kg/m3 of density contains about one-sixth the thermal conductivity as a normal concrete. Accordingly, reducing its density reduces the temperature conductivity of the concrete by 0.04 W/mK.

Furthermore, because foamed concrete is a brand new material, there aren't tested methods that have been developed for it that are standardized. As a result, the method of preparing the specimens and testing they were based on tests that were used for standard concrete. For instance, the compression strength of the concrete was determined by PN-EN-12390-3:2011 plus AC:2012, whereas the modulus of elasticity was determined in accordance with the Instructions in the Research Building Institute No. 194/98. The foam's density was identified using PN.EN. 12390-5.2011.

A concrete's durability and hardness is dependent on the amount of foam present in the mortar. Its mix is composed of lower mass aggregates such as expanded clay, vermiculite, as well as pumice. The density of a concrete is important because it affects the strength, the permeability, in addition to its thermal and mechanical properties. Additive amounts can dramatically alter the properties.

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