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What Is Cover Block?

Cover blocks are small precast concrete blocks. These blocks are used in construction to maintain a specific distance between the reinforcing bars and the formwork. They are placed on top of the reinforcement bars before pouring the concrete, providing a protective layer. This layer prevents the steel from coming into contact with the surrounding environment.

They are available in various sizes and shapes to suit different construction requirements. They can be made from different materials like cover block concrete, PVC, and fiber-reinforced plastic.

According to the IS code, the rebar in a concrete structure needs to be covered with about 20 to 75 MM of material on all sides. Cover blocks are used to lift the rebar to the correct height and become a permanent part of the concrete structure. This ensures that the rebar doesn't sag and that the right amount of concrete covers it during pouring. Cover blocks help to make sure that the concrete structure is strong and durable.

Types Of Cover Block

There are several types of cover blocks available in the market, depending on the material used and the specific requirements of the construction project.

  • Concrete Cover Blocks - These blocks are made of high-quality concrete. These blocks are strong, durable, and resistant to weathering and corrosion.
  • PVC Cover Blocks - These blocks are made of PVC and are lightweight, and easy to handle and install. They are also resistant to corrosion and can be easily removed after the concrete has been set.
  • Fiber-reinforced Plastic (FRP) Cover Blocks - These blocks are made of reinforced plastic. They are lightweight, corrosion-resistant, and have high strength.
  • Wooden Cover Blocks - These are made of wood and are commonly used in temporary constructions. They are lightweight and easy to handle but are not as durable as other types of cover blocks.
  • Cement Masonry Cover Blocks - These cover blocks are made of high-quality cement. And are commonly used in construction projects. These cover blocks are strong, durable, and resistant to weathering and corrosion.
  • Aluminum Cover Blocks - Aluminum cover blocks are made of high-quality aluminum. They are lightweight, corrosion-resistant, and easy to handle. They are not commonly used as cover blocks in construction. But they are suitable for precast concrete structures or where a high level of precision is required.
  • Stone Cover Blocks - Stone cover blocks are cover blocks made of natural stones such as granite, sandstone, or limestone. They are heavy and not easy to handle, making them less preferred than other types of cover blocks. They are mostly used as decorative cover blocks to enhance the aesthetic appeal of the structure.
  • Steel Cover Blocks - Steel cover blocks are cover blocks made of high-quality steel and are commonly used in construction projects. They are strong, highly durable, and also resistant to climatic conditions. They are available in various sizes and shapes and are easy to handle and install.

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Why Cover Blocks Are Used?

Covers blocks in Kolkata are used for various reasons which are as follows-

1. The main purpose of cover blocks used in construction is to maintain the specified distance between the reinforcement bars and the shuttering before pouring the concrete.

2. They serve as a protective layer that prevents the steel reinforcement from various environmental effects.

3. Cover blocks provide sufficient embedding of the reinforcement bars, enabling them to be stressed without slipping. They ensure that the right amount of concrete covers the reinforcement, preventing the sagging of the rebar during the concrete pouring process.

4. Cover blocks can also provide thermal insulation. It prevents the reinforcement bars from getting too hot during a fire, minimizing the risk of structural failure.

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Call Us And Start Building A Strong Structure With Best Cover Blocks!

Ready to build a strong and durable structure? Contact us today and let us provide you with the best cover blocks in the industry.

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Various Cover Block Sizes

Cover blocks come in various sizes ranging from 20mm to 75 mm or even more, depending on the specific requirements of a construction project. Smaller cover blocks are used in thin sections of concrete, while larger cover blocks are used to provide greater stability and support. Check below the different sizes of cover blocks available.

  • Cover Block In Slab - Cover Block 20 mm
  • Cover Block For Beam - Cover Block 20mm
  • Cover Block Size For Column - Cover Block 40mm
  • Cover Block For Pile - Cover Block 50mm
  • Cover Block For Footing - Cover Block 50mm
  • Cover Block for Staircase - Cover Block 15 mm
  • Cover Block For Shear Wall - Cover Block 30mm
  • Cover Block For Raft Foundation - Cover Block 75mm
  • Cover Block For Retaining Wall - Cover Block 20 mm
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Advantages of Cover Blocks

Cover blocks offer several advantages when it comes to construction projects. Some important advantages of using cover blocks Kolkata are mentioned below –

  • Cover block material is used in reinforcement to maintain the specified distance between the reinforcement bars and the formwork before pouring the concrete.
  • Secondly, cover blocks improve the strength and durability of the structure by providing additional support and reinforcement to the concrete.
  • They provide a protective layer that prevents the steel reinforcement from coming into contact with the surrounding environment, which can cause corrosion and weaken the concrete over time.
  • Cover blocks ensure the right amount of concrete covers the reinforcement. Thus, preventing the sagging of the rebar during the concrete pouring process.
  • Cover blocks also provide sufficient embedding of the reinforcement bars, enabling them to be stressed without slipping. This ensures that the reinforcement bars can withstand the tensile forces.
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Trust Top Cover Block Supplies to build a strong & durable structure!

Don't let your construction project suffer from a lack of quality cover blocks! Contact us today and let our expert team of cover block suppliers provide you with the best products and services in the industry.

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Why We Are The Best Cover Blocks Manufacturer In Kolkata?

Om Concrete Products is the pioneer in introducing top-quality concrete products in Kolkata. Our mission is to provide our customers with the best quality cover blocks in Kolkata. We are a leading concrete cover blocks dealers in Kolkata. Our commitment to providing high-quality cover blocks to our customers sets us apart from the competition. Our cover blocks are made using only the best materials and are designed to withstand harsh weather conditions and heavy loads.

Our manufacturing process is streamlined and efficient, which allows us to offer our customers competitive prices without compromising on quality. We have a team of experienced professionals who oversee every step of the production process. It helps us to ensure that each cover block meets our strict quality standards.

We understand that our customers rely on us to provide them with cover blocks that are durable, reliable, and easy to use. That's why we go above and beyond to ensure that our products meet and exceed their expectations. Whether you need cover blocks for residential or commercial projects, we have the expertise and resources to deliver products that meet your specific requirements. Get in touch with us today to know more about how we can meet your construction needs!

Frequently Asked Questions About Cover Blocks Kolkata

What Are Cover Blocks And Why Are They Used In Construction?

Cover blocks are small solid pieces of material, typically made of concrete or plastic. They are used in construction to create space between the reinforcement and formwork. They help to maintain the required concrete cover over the reinforcement bars. This is essential for the longevity and durability of a concrete structure.

Where Can I Buy Cover Blocks In Kolkata?

Om Concrete Products is one of the top cover block suppliers that can offer you high-quality concrete products at affordable prices.

What Are The Different Types Of Cover Blocks Available In Kolkata?

You can buy PVC paver blocks, steel cover blocks, and concrete paver blocks from reputed cover blocks dealers in kolkata.

How Do I Choose The Right Size And Shape Of Cover Blocks For My Construction Project In Kolkata?

Selecting the right size and shape of cover blocks requires careful consideration of various factors, including the size and shape of the reinforcement bar, concrete cover thickness, the material of the cover block, climate conditions, and cost. By keeping these factors in mind, you can choose the right cover block for your construction project.

Are Cover Blocks Necessary For All Types Of Construction Work?

Cover blocks are generally necessary for most types of construction work that involve the use of reinforced concrete.

What Is The Cover Blocks Price In Kolkata?

The cost of cover blocks can vary depending on several factors, such as the material used, size, shape, and quantity required. You can check our site to get the best price and high-quality material.

How Do I Maintain Cover Blocks To Ensure Their Longevity And Durability?

To maintain cover blocks you should protect them from environmental factors and inspect the cover blocks regularly for any signs of damage. Replace any damaged cover blocks immediately to ensure the reinforcement bars remain protected.

How Many Cover Blocks Are Required For 1 Square Meter?

The number of cover blocks required for 1 square meter depends on the size and shape of the cover blocks and the spacing between the reinforcement bars. Generally, there are 4 cover blocks in 1 sq meter.

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Various Sizes of Cover Blocks
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