Best 5 Designs Of Concrete Cover Block Moulds In 2024

By  JR Rubber Industries |  Date  : 20- December -2023

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 Concrete Cover Block

Concrete cover block , provided by JR Rubber Industries,  play an important role in making sure structures are strong and last a long time. These little blocks, known as “concrete cover blocks,” are essential for keeping the right distance between reinforcing bars and formwork. This helps protect the structure from corrosion and ensures it stays strong in cement construction. In this blog, we’ll talk about what cover blocks are, the different types, and how they’re used, all with the quality assurance from JR Rubber Industries.

What Are Cover Block Moulds ?

Cover block moulds provide a unique alternative to more traditional options. These cover block moulds are made from high-quality rubber materials and exhibit exceptional flexibility and resilience. Cover block mould are often used in applications requiring vibration isolation, such as in sound-sensitive areas or structures with heavy machinery. These block moulds effectively absorb impact and reduce noise transmission, ensuring a comfortable and quiet environment.

Additionally, cover block moulds are non-reactive and corrosion-resistant, making them an excellent choice for long-term durability. Cover block moulds are essential in construction projects to support and maintain the required spacing between reinforcement bars. The unique properties of cover block moulds effectively reduce the transfer of vibrations, preventing structural damage and increasing the lifespan of the construction.

One of the significant benefits of using cover block is their ability to minimize noise pollution by absorbing sound waves. Their durability and resistance to chemicals and UV rays also ensure long-lasting protection for the underlying structure.


Best 5 Types Of Concrete Cover Block Moulds

When it comes to selecting the best design for concrete cover block moulds, there are several options available in the market. Here are five popular designs that have been widely recognized for their effectiveness:

Cover block 1

Cover block 1 is designed with the utmost precision to meet specific construction needs. Its unique shape and composition make it ideal for reinforcing bars in columns and beams. The cover block mould is crafted using high-quality concrete that offers excellent durability and strength. Its superior load-bearing capacity ensures the reinforced structure.

The feature of Cover Block 1 is its ability to resist harsh environmental conditions. It is engineered to withstand extreme temperatures, moisture, and other external factors that can damage the reinforcement bars. It makes a reliable choice for both versatility and adaptability Additionally, its smooth surface provides a comfortable base for concrete placement, minimizing the risk of voids or uneven surfaces.

Cover block 2

 Cover block 2 is a particular type that stands out due to its versatility and adaptability. Whether it’s a residential building or a commercial complex, Cover Block 2 is an excellent choice for various construction projects. Its unique design allows for easy customization, enabling builders and engineers to adjust the height and dimensions according to their specific requirements.

Cover block 2 is known for its excellent thermal properties. It acts as a barrier, minimizing heat transfer and ensuring the reinforcement bars maintain an optimal temperature. This feature is particularly advantageous in regions with extreme weather conditions, helping to prevent structural deformities caused by thermal expansion and contraction.

Cover block  also boasts an enhanced grip on the reinforcement bars. Its textured surface creates friction, preventing any slippage or displacement of the bars during concrete pouring. It ensures that the concrete structure remains stable, strengthening its overall integrity. 

Cover block 3

Cover block 3 deserves special mention for its innovation and durability. Made from a unique blend of concrete and additives, it offers exceptional strength and robustness, making it an ideal choice for heavy-duty construction projects.

Cover Block 3 uses sustainable materials and follows environmentally conscious practices, contributing to a greener construction industry. This factor makes it highly sought after by builders and developers who prioritize sustainability in their projects.

Additionally, cover block 3 is designed to prevent water penetration and absorption. It has a specialized coating that not only protects the reinforcement bars from moisture but also enhances their longevity. It is particularly beneficial for projects located in coastal areas or regions with high humidity levels, preventing corrosion and deterioration of the reinforcement.

Cover block 4

Cover block 4 makes its mark with exceptional load-bearing capacity and stability. This type of cover block mould is engineered to handle heavy loads, making it suitable for construction projects that require significant structural support.

Cover block 4 is a unique design that incorporates multiple interlocking mechanisms, ensuring a secure fit and preventing movement or displacement once the concrete is poured. This design feature contributes to the structure’s overall stability, minimizing the risk of cracks or structural failures over time.

Cover block 5

 Cover block 5 has exceptional versatility and ease of use. This type of cover block mould  is designed to provide various construction needs, from residential buildings to infrastructure projects.

One notable feature of Cover Block 5 is a lightweight composition. It offers excellent strength while keeping the weight to a minimum, making it easy to handle and transport on construction sites. This characteristic streamlines the construction process, saving time and ensuring efficient project execution.

Cover block 5 has high dimensional accuracy, ensuring a seamless fit with the reinforcement bars. This precision eliminates gaps or irregularities, creating a solid bond between the concrete and the reinforcement. The result is a structurally sound and reliable construction that can withstand the test of time.

 Benefits Of Concrete Cover Block Moulds

Concrete cover block moulds provide numerous benefits that contribute to the overall quality and longevity of a structure. Here are some key advantages:

  • Improved Concrete Durability

By ensuring the appropriate concrete cover for reinforcement, the durability of the concrete is significantly improved. The cover blocks protect the reinforcement from corrosion, leading to a longer lifespan for the structure.

  •  Structural Integrity Enhanced

With the use of concrete cover block moulds , the structural integrity of a building is enhanced. These block moulds protect the reinforcement bars, preventing any weakening or failure and ensuring the overall stability of the structure.

  • Increased Fire Resistance

Concrete cover block moulds also contribute to a building’s fire resistance. The additional layer of concrete acts as a barrier, slowing down the spread of fire and protecting the underlying reinforcement.

  •  Improved Sound Insulation

The presence of concrete cover block moulds helps in reducing sound transmission between different areas of a building. The block moulds act as a sound barrier, minimizing noise transfer and enhancing the acoustic performance of the structure.

  • Construction Time Reduction

Using concrete cover block moulds facilitates a faster construction process. They can be easily placed and secured, saving time during the reinforcement installation and concrete pouring stages. This results in improved overall efficiency and reduced construction time.

Size Of Concrete Cover Block Moulds

The concrete cover block moulds  size is crucial in achieving the desired concrete cover thickness. The standard sizes range from 20mm to 50mm, with variations depending on the project requirements. Selecting the appropriate size based on the structural design, rebar diameter and spacing, and construction schedules is essential.

Cover Block 1

Length 4.5cm


Height 3.0cm

Cavity per mould

Mould weight  3.100 Kg

Cover Block 2

Length 5.0cm


Height 3.0cm

Cavity per mould

Suitable for

20 mm &40 mm

& 25 mm & 50 mm

Mould weight  1.150 Kg

Cover Block 3

Cavity per mould

Diameter  35 mm 
Suitable for 20 mm 
Mould weight  2.900 Kg 

Cover Block 4

Length  5.0cm
Weight  4.0cm
Height  3.0cm

Cavity per mould

Suitable for 20 mm & 25 mm & 40 mm & 50 mm
Mould weight  3.200 Kg

Cover Block 5

Cavity per mould
Suitable for 12 mm
Iron ring radius 60 mm & 70 mm
Available Mould weight  1.300 Kg

How Do You Choose The Right Cover Block Moulds?

With several concrete cover block moulds options, choosing the right one for your specific construction needs can seem overwhelming. However, you can make an informed decision by considering a few key factors. Here are some reason aspects to consider:

1. Supportive Material

It has to be able to endure harsh weather conditions as well as bear the weight of concrete. Many choices exist, such as concrete, plastic PVC, and concrete. However, each has its advantages and drawbacks.

2. Size and Shape

The design of a cover block must correspond to the shape of the reinforcement bar it supports. However, the size heavily depends upon the strength of the concrete, as stipulated in the design specifications.

3. Capacity of Load

Based on the design specifications, it is essential to ensure that the block cover can support the weight of the reinforcement bars and concrete without suffering any degradation. That is why it’s necessary to establish the capacity of the block’s load.

4. Durability

The durability and strength that a block cover has are essential. It has to withstand harsh weather, humidity, and chemicals. The construction material used is a significant factor determining the cover block’s life span. The most durable type of cover block is constructed of concrete, which can stand up to the test of time. In contrast, the rubber and plastic compositions may deteriorate faster.

After carefully evaluating these elements and consulting with construction professionals, choose the correct mold for your cover that best meets the needs of your building.


Concrete cover block moulds are an important component in the construction industry. It is crucial to prioritize reinforcement protection, and concrete cover blocks offer a reliable and efficient solution.

Choosing the right ones from JR Rubber Industries can make structures stronger and last longer. They prevent problems like corrosion and help the building stay in good shape. The article talks about the top five designs of cover block moulds, their importance and selecting the best designs and sizes, builders and engineers can ensure their structures’ durability, integrity, and longevity and why they’re great for construction. It reminds builders and engineers to pick the right size and design from JR Rubber Industries to make their projects successful.

Frequently Asked Questions

What are the general queries on concrete cover blocks?

General queries related to concrete cover blocks include their purpose, benefits, and compatibility with different construction materials.

Are concrete cover blocks available in custom sizes?

Yes, concrete cover blocks can be customized to meet specific project requirements, providing flexibility and ensuring the desired concrete cover thickness.

Do concrete cover blocks require any special installation techniques?

Concrete cover blocks can be easily placed and secured using conventional construction methods. However, it is essential to follow proper installation guidelines to ensure their effectiveness.

Are there any tips for users when working with concrete cover blocks?

When working with concrete cover blocks, it is advisable to ensure proper cleaning, handling, and storage to maintain their quality and performance. Additionally, following industry best practices and guidelines for installation will ensure optimal results.