12/06/2003

Geo-Coastal Engineering Ltd Tel: 087-6281871 Email: info@geo-coastal.ie www.geo-coastal.ie

KEYSTONE®®®®

Introduction

Keystone is a patented modular block retaining wall sys-

tem. It is easy to install, aesthetically pleasing and is an

alternative to in-situ retaining walls.

Keystone can be used as a gravity wall for heights of up to

2m or as a reinforced soil wall for taller or heavily loaded

walls.

It is available in a wide variety of colours, shapes, face

textures to suit most requirements.

Laid dry, a unique high strength fixing system using pul-

truded fibreglass pins securely fixes the components in

place.

Keystone sets the standard in modular block walling.

Applications

φ Housing, Commercial and Industrial Developments

φ Hotels, Restaurants and Shopping Centres

φ Marinas, Ponds, Streams and Canals

φ Parks, Golf Courses and Swimming Pools

φ Roads, Highways and Railways

φ Landscaping Projects

Gravity Wall

Reinforced Soil Wall

Sloping Surcharge Wall Tiered Wall

Advantages

φ Aesthetically pleasing with colour options, different face styles and shapes.

φ Easy installation, utilising mortarless, interlocked fibreglass pin system.

φ Durable.

φ Versatile, allowing easy construction of curves.

Geo-Coastal Engineering provides full design

and supply service on all our products.

Our experienced design team and provide clients

and contractors with optimum peace of mind and

minimum risk.

Geo-Coastal Engineering Ltd Tel: 087-6281871 Email: info@geo-coastal.ie www.geo-coastal.ie

Specification

Composition

Keystone components are manufactured from limestone aggregates

and cement, manufactured under BS EN ISO 9002

Density

Typical material density = 2100 kg/m3

Water Absorption

6% maximum

Compressive strength

The minimum average compressive strength is 30 N/mm2

Location Pins

Keystone blocks are located using pultruded non-corrodible fibreglass

pins manufactured under BS EN ISO 9002. The pins are 12.7mm

in diameter and 133mm long.

Certification

BBA Certificate No. 98/R103

Russet

Peat

Straw Chrome Sandstone Pewter Ivory

Heather Bathstone Flint Hamstone Yorkstone

Colours

Keystone is available in a wide

range of colours, some of which

are indicated on the right. Spe-

cial colours are available on

request. The colour reproduc-

tion may vary slightly from the

original due to the limitations of

the printing process.

Classic Rockface

Classic

Classic

Rockface

Rockface Standard

Weight 47kg

Size (HxWxD) 200 x 455x x533mm

Exposed face area 0.091m2

Compac

Weight 38kg

Size (HxWxD) 200 x 455x x305mm

Exposed face area 0.091m2

Mini and Cap

Weight 22kg

Size (HxWxD) 100 x 455x x267mm

Exposed face area 0.045m2

Corner Block

Weight 41.5kg

Size (HxWxD) 200 x 455x x228mm

Exposed face area 0.136m2

Location Pins

Keystone’s patented location pin system features

high strength, pultruded fibreglass pins that pro-

vide a shear connector, positive geogrid connec-

tion and alignment system, all in one.