Innovative uses for interlocking concrete blocks

The Role of Concrete Blocks in Modern Architecture

With developments in technology spanning every industry, architecture is no exception. Concrete blocks play a vital role in most if not all construction projects.

In this blog, we will discuss the role of concrete blocks in modern architecture

At PPC Concrete Products, we are here to provide solutions for your construction needs,

from the person working their own part-time project, to commercial clients, and everyone in-between.

Monthly construction output had risen an estimated 1.6% value in June 2023, and we would like to think our accessible concrete products had a small part to play by giving our clients easy access to reliable and easy-to-use construction solutions.

How are concrete blocks made?

Interlocking concrete blocks explained

The process for making concrete blocks is relatively consistent between concrete making companies. However, there may be slight variations, especially if there is a different kind of concrete being made, or a unique shape being moulded. Below is the general process:

  1. Mixing: The process starts with precise proportions of cement, sand, gravel, and water being mixed in a large industrial mixer. This creates a wet, moldable concrete mixture.
  2. Moulding: The mixture is poured into steel moulds with cavities defining the shape and size of the finished blocks. These moulds can be automated on a conveyor belt, ensuring consistent shaping.
  3. Compaction: To eliminate air pockets and ensure a strong final product, the filled moulds undergo a vibration process. This compacts the mixture and creates a dense, uniform block.
  4. Curing: After moulding and compaction, the blocks need time to solidify and gain strength. This curing process typically involves controlled temperature and humidity environments for 24 hours or more.
  5. Sealing and Stacking: Once cured, the blocks are removed from the moulds and may be sealed with a water-repellent coating for added protection. Finally, they’re stacked and palletized for storage or transport.

The entire process is efficient and allows for high-volume production of concrete blocks, making them a cost-effective and versatile building material.

Is concrete recyclable?

Yes, concrete can actually be recycled! It’s a growing trend in construction as awareness of environmental impact increases. Here is how it works:

Reclaimed and Crushed

Demolition of old concrete structures provides a rich source of recyclable concrete aggregate. The concrete debris is crushed into usable pieces. This crushed material can be various sizes depending on the intended use.


Recycled concrete aggregate has various applications in new construction projects. Here are some common uses:

  • Road Base: The crushed concrete can be used as a strong and stable foundation for roads and other paved surfaces.
  • Sub-Base for Buildings: Similar to road bases, recycled concrete can form a solid sub-base for buildings, creating a level and supportive layer beneath the foundation.
  • New Concrete: In some cases, the crushed concrete can even be incorporated into new concrete mixes, although this may be limited to a certain percentage to maintain the strength of the new concrete.

Benefits of Recycling

  • Reduces Landfill Waste: Recycling concrete diverts tons of material from landfills, minimizing environmental impact and preserving valuable space.
  • Reduces Demand for Virgin Materials: By using recycled concrete, there’s less need to extract new resources like gravel for aggregate, which can have environmental consequences.
  • Cost-Effective: Obtaining recycled concrete aggregate can sometimes be cheaper than using virgin materials, depending on availability and transportation factors.

It’s important to note that recycling concrete isn’t always straightforward. There are some limitations such as:

  • Contamination: The presence of materials like rebar, wood, or asphalt in the concrete can make it difficult to recycle. Effective separation methods are needed to ensure a clean, usable product.
  • Quality Variations: The quality of recycled concrete aggregate can vary depending on the source material and processing techniques. It might not always be suitable for applications requiring the highest strength.

Overall, concrete recycling offers a sustainable solution for managing construction waste. As technology improves and awareness grows, we can expect to see even wider adoption of this practice in the future.

The role of concrete blocks in modern architecture

Innovative Uses for Interlocking Concrete Blocks

Concrete blocks have become a surprisingly versatile and prominent player in modern architecture. Below is an explanation of its characteristics and how it’s pushed it to prominence.

Structural Integrity and Affordability:

  • Strength and Durability: Concrete blocks offer excellent structural strength and resilience, making them suitable for load-bearing walls and foundations. This translates to robust buildings that can withstand various weather conditions and potential seismic activity.
  • Cost-Effective: Compared to other building materials like bricks or steel, concrete blocks are a more economical choice. This allows architects to create strong, functional buildings without breaking the bank.

Design Flexibility and Aesthetics:

  • Modular Design: The standardized size and modular nature of concrete blocks make them ideal for creating buildings with clean lines and a modern aesthetic. Architects can use them like giant Lego pieces, allowing for design flexibility and even the formation of curved walls or integrated furniture-like structures.
  • Textural Variations: Modern concrete blocks come in a variety of textures, from smooth to rough finishes. This allows architects to add visual interest and complement other design elements within a building.
  • Colour Options: Gone are the days of plain grey concrete blocks. Today, they come in a wide range of colours, enabling architects to incorporate pops of colour or create a cohesive colour scheme across a building’s facade.

Sustainability and Energy Efficiency:

  • Thermal Mass: Concrete blocks have a high thermal mass, meaning they absorb and retain heat effectively. This translates to cooler spaces in the summer and better heat retention in the winter, reducing reliance on heating and cooling systems and contributing to energy efficiency.
  • Reduced Environmental Impact: Manufacturing concrete blocks often requires less energy compared to some other building materials. Additionally, concrete can be recycled and reused, minimizing environmental impact.

Overall, concrete blocks offer a unique combination of functionality, affordability, and design potential. They have become a cornerstone material for modern architects seeking to create strong, sustainable, and aesthetically pleasing structures.

Which is the best kind of concrete block to use?

Buy best concrete blocks today

Interlocking Concrete Blocks are a variation on the traditional concrete block, and can be argued are the most efficient kind of concrete block. These special pre-cast blocks do not require mortar in order to create a long-lasting and effective connection, and are available in multiple sizes.

Interlocking Concrete Blocks connect to each other via studs and recesses at the top and bottom of the blocks, respectively. Individually, concrete blocks are heavy, but once they are joined, they provide an excellent counterweight against exceedingly heavy applications like a retaining wall.

Considering the fact they do not require mortar to connect, it is safe to say you will be saving money that would otherwise be spent on binding materials, and even some labour costs. But what actually makes Interlocking Concrete Blocks special? Well, a lot of things.

Here is a list of some of the uses that Interlocking Concrete Blocks can facilitate.

  • Material Storage bays
  • Blast walls
  • Salt stores
  • Crash protection
  • Push walls
  • Security barriers
  • Segregation bays, i.e. recycling centres
  • Retaining walls
  • Industrial buildings
  • Fire breaks
  • Counterweights
  • Roadblocks

Buy best concrete blocks today

As an established supplier all over the UK, PPC Concrete Products is always happy to help, which is why we encourage you to get in touch with any questions you may have or have a look at our FAQ.

In this blog, we hope to have shown you the role of concrete blocks in modern architecture.  Whilst also providing additional information including construction solutions that we offer.

Take a read of our case studies to truly understand how we have provided solutions for business in the past with the use of our interlocking concrete blocks, and ultimately, how we can help you today.

Read our blog page for more insights into our passion, construction.


The Old Gasworks,

Higginshaw Lane,




Opening Hours:

Monday to Friday – 8 AM until 4 PM

Tel: 01706 655245


Share on Facebook Share on Twitter Share on Google