0-40mm MOT Type 1 Recycled Sub Base

0-40mm MOT Type 1 Recycled Sub Base is a recycled aggregate produced from processed construction and demolition materials. The material is crushed, screened, and graded to meet the Type 1 sub base specification. It contains a well-graded mix of coarse aggregate, fines, and binding particles.

The material compacts to form a dense and stable layer under mechanical compaction. The presence of fines allows the aggregate to bind when compacted. Load is distributed across the layer, reducing deformation under traffic.

0-40mm MOT Type 1 Recycled Sub Base is used in domestic, commercial, and civil construction projects. It is applied as a foundation layer beneath roads, driveways, car parks, hardstandings, and paved areas.

Material Classification

0-40mm MOT Type 1 Recycled Sub Base is classified as a recycled aggregate. It is manufactured from processed concrete, brick, asphalt, and similar inert materials. The product is supplied to meet the requirements of the Type 1 sub base specification.

Grading and Particle Size Distribution

The aggregate is graded from fines up to a maximum particle size of 40mm. The grading is continuous, allowing effective compaction and load transfer. Particle distribution is controlled to comply with Type 1 requirements.

Compaction and Load Behaviour

The material is designed for structural performance as a sub base layer.

• Compacts to a dense and stable formation.

• Fines content enables particle binding.

• Supports moderate to heavy load trafficking.

• Performs best when placed and compacted in layers.

Drainage and Water Interaction

MOT Type 1 (Recycled Sub Base) provides controlled drainage rather than free drainage.

• Allows limited water movement through the layer.

• Retains fines that reduce void space.

• Not a drainage aggregate.

• Performance depends on formation and subgrade condition.

Consistency and Recycled Content Characteristics

As a recycled product, composition varies between production batches. Material is processed to remove contaminants and oversized particles. Colour, texture, and constituent proportions vary depending on source material.

Compliance and Standards

The product is supplied in accordance with the Type 1 sub base specification. It is commonly referenced within the Specification for Highway Works. Compliance relates to grading, compaction performance, and load bearing behaviour rather than appearance.

Suitability and Usage Limitations

Suitable For

• Driveway and access road sub bases.

• Pavement and patio foundations.

• Car park construction.

• Hardstanding build ups.

• Road and footpath sub base layers.

• Temporary construction access routes.

Not Suitable For

• Decorative surface finishes.

• Drainage layers requiring free flow.

• Exposed final wearing surfaces.

• Applications requiring colour consistency.

• Unbound surface use without cover.

Application Decision Table

Common Alternative Names

0-40mm MOT Type 1 Recycled Sub Base is also referred to as:

• Recycled Type 1

• Recycled MOT Type 1

• Crushed concrete Type 1

• Recycled sub base

• Class 1 recycled sub base

Terminology varies by supplier, but grading and performance criteria remain consistent.

Recycled Type 1 vs Primary Type 1

Recycled Type 1 Sub Base vs Clean Stone Sub Base

Recycled Type 1 Sub Base and clean stone sub base are both used below trafficked surfaces but perform different structural and drainage roles. The key differences relate to fines content, compaction behaviour, and water movement.

MOT Type 1 Sub Base vs MOT Type 3 Sub Base

MOT Type 1 and MOT Type 3 are both unbound sub base materials defined by grading and fines content. The difference lies in drainage performance and suitability for permeable construction.

Trade Supermarket – UK Supply and Hire Platform

Trade Supermarket is a UK-based platform supplying plant hire, aggregates, and building materials for a wide range of project types nationwide. Products and services are structured in line with recognised UK classifications and standard supply and hire practices.

What Sets Trade Supermarket Apart

• Unified Platform Structure: Hire services, aggregates, and building materials are supplied through a single operational framework rather than separate merchant systems.

• Classification-Led Organisation: Products are presented using recognised UK grading, classification, and typical use categories to support correct selection.

• Defined Supply Scope: The platform focuses on material supply and equipment hire only, with design, specification, and installation remaining outside the scope of service.

• Use-Case Neutral Positioning: Products support domestic, commercial, and infrastructure projects without retail-led assumptions.

• Consistent Operational Standards: The same structural and procedural standards are applied across all product categories.

Supply and Delivery Responsibility

• Material Variation: Aggregates are natural or recycled materials and variation in colour, shape, and composition can occur between sources and deliveries.

• Quantity and Coverage: Materials are supplied by weight or volume as ordered. Coverage, yield, and performance are influenced by application method and ground conditions.

• Delivery and Site Access: Delivery requires suitable access for the selected vehicle type. Clear access, adequate space, and stable ground conditions must be available at the delivery location.

• Offloading Conditions: Materials are offloaded at ground level only. Placement, spreading, or installation services are not included as part of supply.

• Returns and Surplus Material: Bulk aggregates are supplied on a non returnable basis once delivered. Buyers should allow appropriate tolerances when calculating quantities.

• Supply Scope: Supply is limited to the provision of materials only. Product selection, suitability assessment, and installation remain the responsibility of the buyer or appointed contractor.