12/06/2003
Geo-Coastal Engineering Ltd Tel: 087-6281871 Email: [email protected] 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: [email protected] 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.