Interlocking Concrete Blocks
The interlocking concrete blocks are probably the most flexible precast retaining wall system in our range. They are available with half and three-quarter length options, which enables you to construct walls and storage bays of almost any size. The concrete blocks simple interlocking connection ensures they are quick, easy and safe to install.
Retaining Wall Design
When the blocks are used as a retaining wall, the structure can be designed to take a surcharge of up to 30kN/m
2 and/or have a 100-year design life. The increased surcharge capacity for this type of retaining wall can be particularly helpful during temporary works on-site or if raised pilling areas are required during construction.
We can provide technical information to enable a project engineer to carry out their design checks and incorporate the precast element into their overall retaining wall design, including:
- CAD Drawings
- Technical Data Sheets
- Structural Calculations
We always recommend having a retaining wall design checked by a qualified engineer. We can provide a full design service if you don't have an appointed engineer for your project.
Interlocking Concrete Block Dimensions
We have three size options available for the interlocking blocks:
- 1500mm x 600mm x 600m
- 1600mm x 800mm x 800mm
- 1800mm x 600mm x 600mm
If the precast units are being used to construct material storage bays, we have other block profiles available to add to the versatility of this product.
When using the blocks for retaining material, there is a maximum height that the 800mm or 600mm wide blocks will be able to retain the material. This height will change, depending on the material density - the heavier the material, the shorter the retained height.
If you need to create a wall that goes above the recommended retained height or if the material will be heaped above the top of the wall, then the bottom block(s) can be rotated through 90o for additional stability. When you're building multiple storage bays and dividing walls are required, we have a specific block profile which tapers on both faces and allows the material to flow off the block and creates a stable base for the retaining wall at the same time.
If you are not sure what size or weights of the interlocking block would best suit your project, speak to our team, who are happy to help and will be able to advise on the most cost-effective option.
Fire Protection & Segregation
Interlocking concrete blocks also have excellent fire resistance properties, thanks to the thickness of the blocks, the concrete strength and mix design. The block walls will provide an effective fire-break or containment of fire if the need arises. If the blocks are being used as a fire or blast wall, you also need to bear in mind that the joints between the blocks will need to be sealed - we can recommend and supply suitable products for this.
Product Applications
The interlocking concrete blocks can also be used in a number of other applications, in addition to creating retaining walls, including:
- Material Storage Bays
- Flood Protection
- Salt Storage
- Earth Retention
- Waste & Recycling Storage
Due to the weight of the blocks, they can be a cost-effective concrete barrier for helping to protect vacant properties. the weight of each full block is:
- 1500mm = 1270kg
- 1600mm = 2450kg
- 1800mm = 1522kg
The concrete blocks can also be used as an alternative to our ballast and kentledge blocks for providing a counterweight to hoarding and scaffolding.
Precast Concrete Installation
As well as the design and supply of precast retaining walls and interlocking concrete blocks, we also provide construction and precast installation service. Our contracts team can carry out complex retaining wall construction - our services include:
- Site Surveys
- Foundation Design
- Construction Drawings
- Foundation Construction
- Precast Installation
- Joint Sealing
As with all our products, we offer a design and installation service for the interlocking concrete blocks for the construction of retaining walls, please speak to the contracts team for more information and to get a free quotation.
