Clay &
Cohesive Fills


Certified, Versatile Clays for Construction, Lining & Engineering Applications 

RedRox supplies a wide range of clays and cohesive fill materials across England, Scotland and Wales, suitable for civil engineering, environmental containment, canal & reservoir works and general construction. 

We offer materials loose or bagged, including certified clay for River and Canal Trust works, with nationwide delivery available. 


What Are Cohesive Soils?


Cohesive soils are fine-grained materials with a high clay content. These soils naturally bond together, making them ideal for use in lining, sealing and containment applications. A simple field test: if moistened soil feels sticky, molds easily, and holds its shape when rolled, it likely contains a significant amount of clay. 

Our Clay Products Include:

Series 600 Clays (Cohesive Fill)

2A – Wet Clay

High plasticity and moisture content; ideal for compacted fill in wet conditions.

2B – Dry Clay

Low moisture content for better handling in dry applications or blending.

2C – Stoney Clay

Contains coarse particles; suitable for structural fill with added strength.

Puddle Clay

Naturally occurring clay with very low permeability, traditionally used for canal and reservoir linings, pond construction and repair, landfill and tip lining and water-retaining barriers.

Engineering Clay

Strong, dense clay used in civil and geotechnical applications where low permeability and high shear strength are essential such as earthworks, embankments and basements.

Blue Clay

A dense, sticky clay with high water retention, typically used in sealing, trenching and land restoration projects.

Recycled Clay & Filter Cake

Sustainable alternatives recovered from waste treatment processes. Ideal for general fill, landscaping and low-spec earthworks.

All materials are fully tested and certified, with technical data available on request. 

  • We offer flexible delivery solutions to suit your site needs including: 
    • Loose bulk loads
    • Bulk bags  

Need help choosing the right clay for your project?

Contact our team today for technical guidance, pricing, or a custom supply quote.

Related
Projects

Cleeve Hill Solar Farm

River Otter Realignment Scheme – Coastal Protection & Flood Resilience

Wombridge Embankment Landslip