Keystone

• BEAUTIFUL, DRY BUILD RETAINING WALLS WITH HIDDEN STRENGTH
• Key Features
• Specification
• Case Studies

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