Reinforced concrete blocks (RCB, RC): marking, types, sizes, pros and cons of use

Commonly referred to as RCBs or RC, reinforced concrete blocks are an essential component of contemporary building. These blocks create a flexible and long-lasting building material by fusing the strength of concrete with the flexibility of steel reinforcement. For building walls, foundations, or major infrastructure, reinforced concrete blocks are a dependable option.

It is essential to comprehend the various RCB types and markings in order to choose the appropriate block for your project. Each of these blocks is made to fulfill particular structural requirements and is available in a variety of sizes, shapes, and specifications. Every kind of block, whether hollow or solid, has a specific function in building.

Blocks made of reinforced concrete come in a wide range of sizes, which promotes design and application flexibility. Larger blocks are perfect for commercial and industrial structures, while smaller blocks are frequently utilized for residential projects. Planning and construction can go more quickly if you are aware of the standard sizes and dimensions.

There are many benefits to using reinforced concrete blocks, such as their remarkable strength, resilience to environmental changes, and durability. They do have some disadvantages, though, just like any other building material. To ascertain whether RCB is the best option for your particular needs, it’s critical to consider the advantages and disadvantages.

We will examine the markings, varieties, dimensions, benefits, and drawbacks of reinforced concrete blocks in this post. Gaining a thorough understanding of these elements will enable you to make well-informed decisions for your construction projects that will guarantee longevity, efficiency, and safety.

Reinforced concrete blocks (RCB, RC) are a fundamental component in modern construction, known for their durability and versatility. This article explores the different types and sizes of these blocks, their marking system, and the advantages and disadvantages of using them in various construction projects. From their impressive strength and fire resistance to potential issues like weight and cost, understanding the key aspects of reinforced concrete blocks can help builders make informed decisions for their construction needs.

Advantages and disadvantages

Vibration pressing is used to create reinforced concrete blocks for walls and foundations, ensuring the material’s strength and dependability. The blocks’ sturdy construction and capacity to tolerate a range of weights and impacts made them an essential component of numerous constructions.

• Durability – the product can be used in the construction of large objects
• Economy – due to the simple assembly of elements and the lack of need to involve a large number of workers
• Simplicity and ease of assembly – installation of foundations or walls is quick and easy using special equipment
• Low thermal conductivity
• Excellent sound and heat insulation characteristics
• Fire resistance
• Long service life – provided the blocks are chosen correctly and the assembly technology is followed, the building can stand for up to 100 years
• Significant reduction in construction time
• Resistance to moisture, corrosion
• Ability to withstand sudden temperature changes, maintain properties at low and high temperatures
• Resistance to aggressive environments – reinforced concrete products can be used in highly acidic soils
• A variety of shapes and sizes, which allows you to select any suitable blocks for the implementation of a standard or individual project

The following subtleties are among the drawbacks of a reinforced concrete block that should be noted: large weight and the requirement for special transportation during construction; relatively high cost (occasionally the choice of blocks is not economically justified when constructing small objects).

Types and sizes

Concrete blocks are useful in both low-rise and high-rise construction. They are used to build walls, plinths, foundations, fences, and more.

Block types and sizes are governed by standards. Therefore, the following are the measurements and weights of the reinforced concrete wall blocks: 39 x 19 x 19 centimeters for external walls and 17 kg for partitions, and 39 x 19 x 9 centimeters with 8 kg for each.

Regarding foundation products, the block dimensions may vary.

• Length – 88, 118, 238 centimeters
• Height – 28 or 58 centimeters
• Width – 30, 40, 50, 60 centimeters

• Length – 88 centimeters
• Width – 30, 40, 50, 60 centimeters
• Height – 58 centimeters

Products composed of heavy concrete can weigh anywhere from three hundred to two thousand kilograms. Therefore, specialized equipment is required for any work involving blocks, including loading, unloading, and installation.

• Made of heavy concrete – grades M200-M400 with a density of 2400 kg / m3. One block weighs from 300 kilograms, has high thermal conductivity and frost resistance. When replacing limestone crushed stone with granite as a filler, it makes it possible to use the block in acidic soils.
• Made of lightweight concrete – grades M100-M150, density 1800 kg / m3, weight 300-1630 kilograms. Used only in dry soils.
• Made of expanded clay concrete – high thermal insulation properties, but low resistance to moisture and frost. High-quality waterproofing. Density 1800 kg/m3, weight 260-1500 kilograms. Usually, lightweight structures are built from such blocks (garages, bathhouses, etc.D.).

Features of choice

The following are important factors to consider when selecting a reinforced concrete block: resistance to different external influences, density and homogeneity of the array, and strength index.

• Purpose of the construction site
• The amount of load that the product will bear
• Geological features of the region where the project is being implemented

It is critical that you consider the block’s quality. Its production needs to adhere strictly to standards and technology, and the plant needs to be licensed in every way. You must consider the blocks’ appearance when making a purchase. Sections from a single batch should all be the same size; standards allow for deviations of no more than 5 millimeters.

The product’s size and type are chosen based on the tasks assigned. The block will weigh more as it gets bigger, but construction will go more quickly.

Installation of blocks

Block installation is essentially the same as brick installation; the only difference is that in this case, the mortar joints are 10–12 centimeters in size. Reinforcement is incorporated into the structure to increase wall strength and building stability. Masonry typically begins at the building’s corners in order to achieve the highest level of accuracy possible while adhering to the project specifications.

Each laid row of stones must have its height and level checked before wall and ventilation block sections for building partitions are installed. It will be plenty, either with a standard building level or with a string stretched between the end and the corner.

To stop concrete mixture from seeping into the newly formed voids in a wall constructed of concrete products, a board needs to be placed in their place. To install the next row, just raise the board a little bit higher. Partition sections are installed in the same manner. Overly heavy blocks are installed with specialized equipment; therefore, you should arrange for the means beforehand.

Sections are installed in the same manner when laying basement walls. It is only necessary to fasten the uppermost row of stones to the building’s foundation or floor slab.

Special tools and a concrete mixture made of ingredients mixed in specific ratios are used in the work.

Since the mixture hardens quickly, it must be used right away. Even though installing reinforced concrete blocks is not particularly difficult, skilled artisans suggest getting in touch with experts who can complete the task swiftly and effectively.

Manufacturing at home

You will need Portland cement, water, and sand that is at least 1.5 millimeters fraction to make reinforced concrete blocks by hand. Wall, ventilation, and partition blocks can be constructed in this manner. Depending on the binder used, the solution’s composition and proportions typically match the normative.

When combining the ingredients, make sure the mixture has the right consistency. A liquid consistency weakens the finished product. The solution can be distributed more evenly and efficiently in the forms because of the vibrating installation used in the work.

Forms of appropriate sizes made from a variety of materials can be bought pre-made (the sizes and configurations are presented in different ways). With particular attention to the corners and ends, the solution is poured into the forms as tightly as possible.

After that, the composition is rammed or vibrated, and a trowel is used to level the top. Metal meshes are inserted within the form if the block is reinforced.

The solution will solidify during the minimum three-day drying period of the form. After that, the structure is taken apart, the section is taken out, and it is given at least 21 days to dry. The blocks can then be used for construction.

For many building projects, reinforced concrete blocks (RCB, RC) provide a flexible and long-lasting solution. They are perfect for building walls, foundations, and other structural components because of their strength and steadiness. Different architectural needs and preferences can be accommodated by the flexibility in design made possible by the variety of types and sizes.

These blocks must be marked in order to be recognized for their unique qualities and to make sure they fulfill the specifications of a given project. Whether choosing a block for residential, commercial, or industrial use, this system aids in the process. During construction, being aware of the proper markings can save time and help avoid costly errors.

The durability and resistance to environmental factors of reinforced concrete blocks are among their main advantages. They are a dependable option for secure and cozy buildings because they offer superior thermal insulation, soundproofing, and fire resistance. Their strength also reduces the need for regular replacements or repairs.

But there are a few disadvantages to take into account. These blocks can be difficult to handle and transport due to their weight, necessitating labor and specialized equipment. Additionally, the initial cost may be higher than for other materials; however, their durability and long-term benefits frequently outweigh this.

All things considered, reinforced concrete blocks are a strong and trustworthy choice for a variety of building projects. You can increase the longevity and success of your building projects by making well-informed decisions by being aware of their types, sizes, and markings as well as their advantages and disadvantages.

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