FAQs

We are happy to help. Here are some frequently asked questions (FAQs) regarding concrete cover blocks:

What are concrete cover blocks?

Concrete cover blocks are small, precast blocks that are placed over reinforcement bars (rebars) in concrete structures to maintain the proper distance between the rebars and the surface of the concrete. They are designed to ensure that the rebars are completely covered by the concrete and protected from damage.

Why are concrete cover blocks important?

Concrete cover blocks play a vital role in ensuring the durability and strength of concrete structures. If rebars are not adequately covered with concrete, they may be exposed to corrosive elements, such as water and air, which can cause the rebars to rust and weaken the structure. The use of cover blocks helps prevent this by maintaining the proper distance between the rebars and the surface of the concrete.

What materials are used to make concrete cover blocks?

Concrete cover blocks can be made from a variety of materials, including concrete, plastic, or composite materials. The choice of material will depend on factors such as the intended use of the blocks, the specific requirements of the project, and the environmental conditions of the construction site.

How are concrete cover blocks installed?

Concrete cover blocks are typically installed by placing them over the rebars at the required spacing and securing them in place with wire ties. The blocks should be positioned in such a way that they do not interfere with the flow of concrete and should be firmly held in place to prevent them from moving during the pouring process.

What sizes are available for concrete cover blocks?

Concrete cover blocks are available in a range of sizes, depending on the size of the rebars and the spacing required. Typical sizes range from 20mm to 75mm, and may be square or circular in shape.

Can concrete cover blocks be reused?

Concrete cover blocks can be reused, provided they are not damaged or worn. It is important to inspect the blocks carefully before reusing them to ensure that they are in good condition and have not been damaged during previous use.

Is there any IS Code regarding Cover Blocks?

Yes, IS 456 (2000) : Plain and Reinforced Concrete – Code of Practice (CED 2: Cement and Concrete)