Materials directory

Materials

Browse the products and services available through NXS AGGREGATES. Product grading, source and suitability should always be confirmed against the project specification.

Complete directory

39 materials

Recycled & Quarried Aggregates

6F2 Recycled

Site-won, recycled granular material produced from crushed concrete, masonry, brick or similar inert construction material. Under the UK Specification for Highway Works, Class 6F2 is a selected granular material used on the site where it is produced.

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Recycled & Quarried Aggregates

6F5 Recycled

Imported selected granular material made from processed recycled aggregate, commonly crushed concrete, brick, masonry and other permitted inert materials. It is generally a coarse, well-graded material containing fines.

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Recycled & Quarried Aggregates

6F5 Quarried

Imported selected granular material produced from crushed quarried rock rather than recycled demolition material. It is normally supplied as a coarse, well-graded aggregate with fines.

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Recycled & Quarried Aggregates

Clean Concrete

Concrete that has been crushed and screened to produce a recycled aggregate. The term normally indicates material predominantly derived from concrete, with contaminants removed during processing.

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Sub-base & Fill Materials

Type 1 MOT

A dense, well-graded crushed aggregate containing particles from a specified maximum size down to fines. Type 1 is a recognised unbound mixture for sub-base construction under the Specification for Highway Works.

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Sub-base & Fill Materials

Type 1 NSH

A Type 1-style dense graded sub-base material marketed as non-Specification for Highway Works, or non-highways, material. It is intended to provide a compacted foundation where formal SHW compliance is not required.

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Sub-base & Fill Materials

Type 3X

A reduced-fines, open-graded crushed aggregate used as a permeable sub-base. The spaces between particles allow water to pass through more readily than dense Type 1 material.

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Sub-base & Fill Materials

0/20mm Aggregate

A continuously graded aggregate containing particles from 20mm down to fine material. The fines help the material bind and compact.

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Sub-base & Fill Materials

Class 1A Fill

A selected granular fill classification defined within the Specification for Highway Works earthworks series. Class 1 materials are granular fills whose permitted properties and grading are set by Table 6/1.

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Sub-base & Fill Materials

6C

A selected granular fill class within the Specification for Highway Works earthworks classification system. It is used where the contract requires material meeting the relevant Class 6C limits.

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Sub-base & Fill Materials

6G

A coarse selected granular fill classification used in highway and civil engineering earthworks. Quarry suppliers commonly market a large-size stone product under this designation.

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Sub-base & Fill Materials

6I

A selected granular fill classification within the Specification for Highway Works. Its use and acceptance criteria are determined by the earthworks specification and project-specific appendices.

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Clean Stone

W75 Clean Stone

A coarse, screened stone with most fine particles removed. Products sold as W75 are commonly around the 40/75mm size range, although the exact grading is supplier dependent.

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Clean Stone

6A Clean Stone

A coarse selected granular aggregate described under the earthworks material classifications used in UK highway specifications. When sold as clean stone it is normally screened to limit fine material.

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Clean Stone

2C

A general fill material sold under the 2C designation by some quarry suppliers. It is typically a coarse granular material used for bulk filling rather than a tightly controlled decorative aggregate.

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Clean Stone

1A Fine Aggregate

A fine granular fill classification used within earthworks specifications. It generally refers to selected granular material meeting the relevant Class 1A limits rather than a single decorative or clean-stone size.

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Sand & Pipe Bedding

Sharp Sand

A relatively coarse sand with angular or sub-angular particles. It provides good drainage and is commonly used where a stronger, more granular sand is required.

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Sand & Pipe Bedding

Building Sand

A fine, soft sand used principally to improve the workability of masonry mortar. It normally has a finer grading than sharp sand.

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Sand & Pipe Bedding

Plastering Sand

A washed, controlled-grading sand intended for plastering and rendering. It is selected to provide suitable workability and a consistent finish.

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Sand & Pipe Bedding

Fill Sand

A general-purpose sand used as non-structural fill, levelling or backfill. It is usually supplied for volume filling rather than high-specification concrete or mortar.

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Sand & Pipe Bedding

Washed Sand

Sand that has been washed to remove excess silt, clay and other fine contaminants. Its grading and end use depend on the source and processing.

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Sand & Pipe Bedding

ENA97-1 Cable Sand

A selected or stabilised backfill material designed to meet ENA Technical Specification 97-1 for underground power cable installations. The specification controls thermal performance so heat can dissipate from the cable.

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Sand & Pipe Bedding

Pit Sand

Naturally occurring sand excavated from inland deposits or sand pits. Its particle shape, grading and silt content depend on the deposit and processing.

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Sand & Pipe Bedding

River Sand

Naturally deposited sand obtained from river or fluvial deposits. Water action generally produces relatively rounded particles, but grading and cleanliness vary by source.

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Sand & Pipe Bedding

10mm Pipe Bedding

A clean, small single-sized aggregate, commonly based on a 4/10mm grading, used to create a stable and free-draining bed and surround for pipes.

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Sand & Pipe Bedding

20mm Pipe Bedding

A clean, coarse aggregate commonly based on a 10/20mm grading, used for drainage and pipe surround where a larger bedding stone is permitted.

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Decorative Stone & Gravel

Gabion Stone

Durable, coarse stone selected in sizes suitable for filling gabion baskets, mattresses or similar containment systems. Angular quarried stone helps interlock within the basket.

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Decorative Stone & Gravel

Pea Gravel

A small, rounded gravel, commonly supplied in nominal sizes around 6mm to 10mm. The particles are usually naturally smooth rather than crushed and angular.

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Decorative Stone & Gravel

Fine Gravel

A general trade term for small gravel particles, typically a naturally rounded or crushed aggregate in a relatively small nominal size range.

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Decorative Stone & Gravel

Slate Chippings

Flat, angular fragments of slate screened into decorative size ranges. Slate is commonly chosen for its colour, texture and relatively thin particle shape.

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Decorative Stone & Gravel

Marble & Granite Chippings

Decorative crushed stone produced from marble, granite or a blend of separately sourced chippings. Marble is a metamorphic rock, while granite is a hard igneous rock.

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Decorative Stone & Gravel

Quartz & Crystal Gravel

Decorative gravel containing quartz-rich stone or marketed for a bright, crystalline appearance. Quartz is a hard mineral commonly present in natural gravels and crushed rock.

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Soil, Waste & Muck Away

Topsoil

The upper soil layer used to support plant growth. Traded or manufactured topsoil should be suitable for its intended landscaping use and may be specified to BS 3882.

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Soil, Waste & Muck Away

Inert Muck Away

A waste removal service for inert excavation and construction material that does not undergo significant physical, chemical or biological change. Typical material may include uncontaminated soil, stones, concrete or similar inert waste where correctly classified.

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