MOT Type 1 calculator

We offer a diverse selection of MOT Type 1 aggregate, which serves as an essential formation material for filling irregularities in excavations. This ensures a solid and level foundation, perfectly suited for load-bearing surfaces like stone or concrete.

In the construction sector, we provide MOT Type 1 aggregate and recycled hardcore aggregate in bulk, catering to a variety of infrastructure and building applications. Our products are competitively priced and known for their versatility.

For the domestic market, we supply MOT Type 1 aggregate and recycled hardcore aggregate to support a wide range of DIY projects. Whether you’re laying a sub-base for sheds, patios, driveways, or other applications, we have the right materials to meet your needs.

Applications of MOT Type 1

MOT Type 1 is crucial in various construction scenarios where certified materials are necessary. Its exceptional properties make it ideal for applications, especially in environments that require a stable and durable sub-base. Common uses include:

• Driveways
• Building Sub-bases
• Hard Standings
• Highways
• Car Parks
• Footpaths

Composition of MOT Type 1

MOT Type 1 is a high-quality sub-base material commonly used in construction and civil engineering projects. It is typically made up of a blend of aggregates derived from:

Granite: Known for its durability and strength, granite provides excellent load-bearing properties to the mixture.

Limestone: This material is valued for its smooth texture and natural binding capabilities, enhancing the overall stability of the aggregate.

Clean Crushed Concrete: Recycled concrete contributes to the eco-friendliness of the material while retaining good compaction qualities.

These aggregates are processed to a maximum size of 40mm, resulting in a well-graded aggregate that optimises compaction properties and achieves substantial load-bearing strengths. The dust content generated during the crushing process helps fill voids in the larger aggregates, ensuring a dense and stable base.

What is MOT Type 1?

MOT Type 1 is a material widely used in construction and civil engineering, particularly for sub-base layers in roads and pavements. It is composed of crushed stone varieties such as granite, basalt, gritstone, or carboniferous limestone. The stone sizes typically range from 40mm down to dust.

How Do I Calculate the Quantity of MOT Type 1 Required?

To calculate the quantity of MOT type 1 you require for your project will depend on a number of factors:

The application: What will be the use for the intended surface?

The surface area: The area you want to cover in meters.

The Depth: Work out the depth you want the MOT layer to be. Please note that this will depend on the application. For advice on the layer depth suitable for your project, please contact us. Here are some common depths which are usually measured in millimetres.

• Patios & Footpaths – 50mm Depth
• Driveways – 100mm Depth
• Roads or Heavier use areas – 150mm+ Depth

To use our calculator make sure you convert this to meters : 100 mm = 0.1 m

Finally, we always recommend you order 5–10% extra to allow for compaction and variation in material.

Is MOT Type 1 suitable for driveway sub-bases?

Yes, MOT Type 1 is an excellent choice for driveway sub-bases when the final surface is either gravel or tarmac. However, for block-paved driveways, a more permeable sub-base, such as MOT Type 3, may be necessary to meet Sustainable Urban Drainage System (SUDS) regulations.

One of its key features is its ability to resist frost heave, making it particularly suitable for areas prone to freezing temperatures. This resistance helps maintain the stability and longevity of road and driveway surfaces, reducing the likelihood of cracks and other structural issues.

What Are the Specifications for MOT Type 1?

MOT Type 1 is produced in accordance with the Specification for Highways Works Clause 803, ensuring that it meets rigorous standards for performance and durability.

 How Do I Install MOT Type 1?

To install MOT Type 1 effectively, start by evenly spreading the material with a shovel. Compacting MOT Type 1 in layers using a vibrating roller or whacker plate is essential to ensure a stable surface and prevent future settling. For your convenience, Bullimores Plant Hire offers the necessary equipment to help you achieve a professional finish.

For optimal results, aim for recommended installation depths of 150mm for driveways, 75mm for paths, and 100mm for patios. This approach will help create a durable and long-lasting foundation.