Different types of interlocking bricks include concrete, soil, fly ash, clay, and mud interlocking bricks. They are sustainable choices, with great durability but without the need for plastering. It's easy to see why choosing interlocking bricks for your construction project is becoming increasingly popular. You can even produce interlocking bricks far quicker than conventional bricks (around 2.5 to 5 times quicker), which saves on labor costs in the long run.

You should understand the different types of interlocking bricks, whether you are building an interlock wall or interlock brick pavers. Our team at Lontto does not only provide high-quality interlock brick-making machines, but we're proficient at helping you understand the benefits of interlocking bricks too. Let's examine what interlocking bricks are, how many types there are, and everything else you need to know.

Key Takeaways

  • Interlocking bricks are bricks that don't need mortar or plaster to be held together.
  • They are often used for low-cost construction housing, driveways, and pavers.
  • Many different types of interlocking bricks exist, including mud, soil, clay, and concrete.
  • While interlocking bricks are affordable, durable, and more sustainable, they suffer from insects and extreme weather conditions.

What are Interlocking Bricks?

interlocking bricks

Interlocking bricks are a construction material designed to fit together without needing mortar to bind them together. Like puzzle pieces, the self-locking capability of interlocking bricks is achieved through a shear key and lock mechanism, which enhances their stability and ease of use in construction projects. They're cost-effective, easy to use, and a more sustainable option compared to traditional concrete blocks that require mortar to bind them together.

How Many Different Types of Interlocking Bricks are There?

Brick Type Description Key Uses
Concrete Interlocking Bricks Durable, affordable bricks that lock together without plaster or mortar Driveways, internal walls, housing
Interlocking Stabilized Soil Bricks (ISSBs) Eco-friendly, low-cost soil bricks stabilized with cement Sustainable housing projects
Fly Ash Interlocking Bricks Made from coal byproducts and cement; sustainable and cost-effective Walls, floors, low environmental impact
Mud Interlocking Bricks Low-cost bricks made from clay, soil, and organic binders Housing projects with local materials
Clay Interlocking Bricks Known for aesthetic appeal and heat resistance; offers good thermal insulation Outdoor spaces, thermal insulation

There are five types of interlocking bricks: concrete, soil, fly ash, mud, and clay interlocking bricks. These bricks can be used as interlocking pavers and interlocking blocks for walls. We won't be including different types of pavers like rubber, flagstone, or natural stone pavers as they cannot be made using interlocking brick machines.

Concrete Interlocking Bricks

The most standard type of interlocking bricks are made from concrete. They are used for various construction projects because they are extremely durable (making them a great option for your driveway) and cheaper than bricks that need plaster or mortar. Their capacity to lock together also makes them an option for indoor spaces, with low-cost internal walls and housing often using concrete interlocking bricks.

Interlocking Stabilized Soil Bricks (ISSBs)

If you're familiar with compressed earth blocks (CEBs), interlocking stabilized soil bricks are a similar type of brick used as a cheap, sustainable option for homes. However, unlike broader dry stack brick options, ISSBs are capable of interlocking with one another to form a tight link that helps transfer the load between them.

These interlocking bricks are made from soil mixed with a stabilizing agent like cement. The soil used for ISSBs is very particular and requires it to be free from organic material or harmful salts that could reduce the strength of the interlocking brick wall. You'll often see ISSBs used in areas where sustainable and cheap housing is a priority, as in many countries in Africa.

Fly Ash Interlocking Bricks

Fly ash is a byproduct of coal combustion in energy-producing facilities, which makes it a sustainable choice for your floor or walls. The fly ash is usually mixed with other materials like cement, sand, and stone dust to reinforce the material's stability and strength. Since cement mortar and concrete pavers require a large amount of water, resulting in a greater environmental impact — fly ash interlocking bricks are an excellent choice that are easy to install and cost-effective.

Mud Interlocking Bricks

Another alternative to your concrete interlock brick design is mud interlocking bricks. These are ideal for low-cost housing that requires structural integrity without cement mortar. Mud interlocking bricks are made from clay, soil, and water that's mixed with organic binders like straw or rice husks to help further strengthen them. A major benefit of mud interlocking bricks is that as long as you have a manual or automatic brick-making machine, you can use local materials to create your wall or paving stones.

Clay Interlocking Bricks

Clay bricks are the classic choice for construction materials, especially the red brick design that's likely graced your local coffee shop or chimney. Using clay interlocking bricks for pavers is ideal, as they are especially resistant to heat and can provide noticeable thermal insulation compared to concrete. They are an aesthetically appealing option for your outdoor living space, while still providing great value for money.

How are Interlocking Bricks Used in Construction?

interlocking bricks in construction how are interlocking bricks used in construction

Bricks interlocking with one another offer several advantages over traditional bricks that need mortar, and are often using in construction projects like:

  • Residential buildings
  • Driveways and paving
  • Retaining walls
  • Temporary structures
  • Commercial structures
  • Environmentally conscious projects

What are the Advantages and Disadvantages of Interlocking Bricks?

Advantages Disadvantages
Affordable: Interlocking bricks are a more cost-effective alternative compared to traditional brick and concrete solutions. When looking at the costs of masonry, you can expect to pay around 40% less by using interlock bricks for wall and paving construction projects. Insect Vulnerability: The space between interlocking bricks is wide enough to allow insects to use them as habitation if you don't seal them properly.
Earthquake Resistant: The unique locking mechanism of interlocking bricks makes them more resilient against seismic activity. Susceptible to Poor Weather Conditions: While interlocking bricks are strong, they can still be damaged in extreme weather conditions.
Sustainable: A 2021 study published in the Journal of Building Engineering states that the "eco-efficiency performance of interlocking bricks is generally better than conventional bricks." This means they are the more sustainable choice for your patio or house construction than stone or concrete. Structural Limitations: Interlocking bricks are typically used for paving high-traffic areas or low-cost housing, as they have difficulties supporting structures over two stories. This can be averted if you add additional support.
Less Labor: Since interlocking bricks don't require cement mortar, you will require less labor and skilled workers to complete the work on pavers for your project.
Durable: Interlocking bricks are strong and durable even without the use of mortar. They can also be easily dismantled and reused.

Lontto | Your Interlocking Brick and Block Machine Supplier

Many modern construction projects in the United States, Africa, and India require high-quality interlocking brick machines with low pricing — that's where Lontto comes in. With over 30 years of experience, we provide advanced brick making solutions that are engineered for high-volume production, with installation and training provided. Take a look at our range of interlocking brick-making machines today.

Different Types of Interlocking Bricks FAQs

What do you put under interlocking bricks?

You should place a proper base under interlocking bricks to support the structure, although the material to use can vary. The most common preparations that are used for interlocking bricks are an aggregate base, sand bedding layer, or joint sand that's placed between the bricks.

What is the lifespan of interlocking bricks?

Interlocking bricks have a lifespan that can range from 20 to 50 years, largely depending on the material that is used to construct the bricks. Concrete or stabilized soil will tend to have longer lifespans, although proper maintenance is always necessary to ensure your interlocking bricks will last longer.

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chao zhang

Author: Chao Zhang

I am Chao Zhang, I have been working in the brick making industry for over 10 years. I have a deep understanding and research on various models of block making machines, especially automatic brick machines, concrete block machines, compressed earth block machines, clay brick machines, cement brick machines. I have a special understanding of this industry. I can help my clients choose the suitable brick machine and assist them in designing and building a brick production factory. If you want to know everything about brick making machines, please contact me. I am happy to help you.