Keystone
From 1st July 2009 the Civil Engineering products range was integrated into Anderton Concrete, also a CRH company, based in Northwich, Cheshire. For all sales enquiries please call 01606 535300 or email civils@andertonconcrete.co.uk.

The Keystone retaining wall system is the structurally sound, aesthetically appealing, easy-to-install and economical solution to replace Gabion, Crib and cast-in-situ retaining walls.
Keystone offers a wide variety of products with different sizes, shapes, face textures and colours for superior gravity and earth reinforced walls that can rise to heights in excess of 15m.
For all sales enquires please contact our Customer Service Office on 01606 535300.

Easy to Install
- Interlocked, mortarless assembly
- Patented fibreglass pin system
- Rapid Installation
Aesthetic
- Multiple colour options
- Rockface split textures
Durable
- High strength, low-absorption concrete
- Non-corrosive material
Versatile
- Unique Design
Cost-Effective
- Lower Cost
- Time Saving
- Mass produced
- Long lasting
- Re-use of existing material
Composition
Keystone walling components are manufactured from a carefully controlled mixture of limestone aggregates and cement.
Density
Typical material density - 2100kg/m³
Compressive Strength
Minimum average concrete compressive strength - 40N/mm²
Fire Resistance
All Units are manufactured from limestone aggregate which has class 1 fire resistance.
Water Absorption
Under test conditions for water absorption the performance of Keystone products surpassed the highest appropriate standards.
Location Pins
Keystone units are located using pultruded non-corrodable fibreglass pins manufactured under BS EN 9001:2000. The pins are, nominally 12.7mm diameter and 133mm long.
The pins have a minimum:
Flexural Strength
-
882N/mm²
Tensile Strength
-
785N/mm²
Short Beam Shear Strength -
44N/mm²
Recent Projects completed using Keystone:
- Tesco, Bradford
- Glasshoughton Railway Station
- Shutterton Brook Flood Defence
- Southend End on Sea, Seafront Scheme
- Leeds Inner Ring Road
- Ryhope Beach Underpass
- Tacuma Corporation, Slough
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