Feb 19, 2024 · Discover the key differences between MOT Type 1 and MOT Type 3 quarried sub-base aggregates with Mainland Aggregates. Learn which sub-base is ideal for your construction project, whether it's for high traffic durability or optimal drainage in …

MOT Type 3 is perfect for driveway sub-bases where the finished surface needs to comply with Sustainable Urban Drainage regulations (SUDS), such as when used with permeable paving.

Mar 15, 2022 · Type 3 MOT. Type 3 MOT consists of pure crushed limestone, granite or basalt. This sub-base might be 75mm or 40mm down depending on the location it is quarried. MOT Type 3 is most commonly used in areas where reduced fines are required to reduce drain blockages, including sub-bases for equestrian areas and sports pitches. What does MOT and DOT ...

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.

Type 3 is a sub-base similar to MOT Type 1 but with reduced fines to allow water to free drain as a permeable sub base. For material to be called Type 3, it must conform to the Ministry of Transport Specification Clause SHW 805.

Feb 21, 2024 · Type 3 sub-base is a commonly used material as a sub-base for construction projects that require a higher percentage of larger-sized aggregate and a lower fines content. It is similar to MOT Type 1, but with less fines - up to 25% of …

MOT Type 3 aggregates, also known as "Type 3 sub-base," are high-quality granular materials used primarily for creating permeable and stable sub-bases in construction. They offer several benefits, particularly in the context of roadways, driveways, footpaths, and sustainable drainage systems (SuDS).

Our Type 3 aggregate, sometimes known as MOT Type 3, conforms to SHW Clause 805 for sub-base purposes. This product, often referred to in the industry as Type 1 Reduced Fines is made up of larger-sized aggregate but with reduced fines …

MOT Type 3 Subbase or just Type 3 is an open graded unbound mixture of aggregates. The material grading requirements are defined in Clause 805 of the Standards for Highway Works. Type 3 will be crushed down to a size of 80mm down to dust.

In very general terms, Type 3 is an open graded crushed aggregate roughly in the range 40mm to dust. Unlike the two most popular Close Graded Aggregates (CGAs), Type 3 is a low-fines aggregate and not no-fines, as some sources seem to believe.