The 3 Types of MOT Hardcore Aggregates and Their Applications
MOT aggregate is widely utilised for construction and civil engineering applications as a hardcore sub-base used in domestic and commercial projects, for anything from driveways to paths and roads. In the construction industry, MOT stands for Ministry of Transport, the organisation who have approved three types of hardcore aggregate, each with different specifications and usages.
If you require MOT sub base stone for an upcoming project, source it from a reputable quarry or stone supplier like Cloburn Quarry. We have reliably supplied MOT Type 1 aggregate and MOT Type 2 aggregate for a variety of demanding projects, including road construction, hard landscaping, equestrian arena construction – and much more. We deliver throughout the UK and worldwide by rail, ship or road.
If you’re unsure what quantity of MOT aggregate you need, use our Aggregate Calculator. Alternatively, you can give our team a call or fill out our enquiry form and we’ll be happy to advise.
To help you determine which type of hardcore sub base would best suit your project, our team at Cloburn Quarry have put together a quick explainer for your reference …
What Is the different between MOT Type 1, 2 and 3 Sub Base?
MOT Type 1 Aggregate Sub-base
MOT TYPE 1 SUB-BASE: 0mm-40mm graded material that complies with all government and road authority specifications. Also referred to as “M.O.T” or “hardcore”.
MOT Type 1 aggregate is a crushed stone that conforms to the requirements of the Ministry of Transport’s specification for highway works. It is often produced using materials such as limestone, gritstone, basalt, brick, concrete and hardcore.
Thanks to its hardy properties, MOT Type 1 hardcore aggregate is a high quality, durable material that can be used for numerous applications. It should be used for any projects that require a firm sub-base and is often used in the construction of roads, highways, and pathways.
If you’d like to calculate how much MOT Type 1 you’d need for your project, use our calculator.
MOT Type 2 aggregate can be used as a car park sub base
MOT Type 2 Aggregate Sub-base
MOT TYPE 2 SUB-BASE: 0mm-20mm graded material – suitable for commercial car parks and blinding applications.
MOT Type 2 aggregate refers to a form of crushed aggregate that is finer than MOT Type 1. It can be used to provide a hardcore sub base for a wide array of commercial and domestic projects. When compacted, it is particularly suitable for driveways.
Thanks to its favourable drainage properties, MOT Type 2 hardcore is also frequently used for pathways and walkways. In addition, MOT Type 2 aggregates can be used to fill in potholes or be used as backfill material. It compacts easily to provide a free-draining base, which explains its popularity for the aforementioned projects.
Take a look at our 20mm red granite aggregate.
If you’d like to calculate how much MOT Type 2 you’d need for your project, use our calculator.
MOT Type 3 Aggregates
MOT TYPE 3 SUB-BASE: 5mm-40mm (also known as Modified Type 1).
MOT Type 3 aggregate is a coarse, granular material. It is a well-graded hardcore material, typically used in road construction and as a base layer for other construction materials such as asphalt.
Although similar to MOT Type 1 from a visual standpoint, they differ in specification. MOT Type 3 is much finer and is fully certified in accordance with the Specification for Highway Works. Other applications include sub-bases for equestrian arenas and applications where reduced fines are required. It can help avoid issues such as drain blockage, which can sometimes occur with MOT type 1.
How Much Aggregate Do I Need For My Project?
The amount of aggregate you’ll need for your project will differ depending on whether you require MOT Type 1, 2 or 3 hardcore.
Using measurements of width, length and depth of your area, you can use our handy aggregate calculator to find out how much MOT Type 1, 2 or 3 you need for your project.
Any Questions? Get In Touch!
If you have any queries in relation to MOT sub base aggregates or any of the products in our range, please don’t hesitate to get in touch. Our dedicated experts are here to help. Call us to arrange a free, no obligation quote. We hope to hear from you soon.
