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TERRAFORCE products can provide you with environmentally friendly earth retaining and architectural landscaping using mortarless and fully interlocking concrete retaining and terracing blocks. Erosion and sediment control of versatile and plantable nature. Retaining walls for any environmental circumstance.

Benefits and features

Aesthetics

• Obtainable in different sizes and colours • Reversible units for variations on elevation • Variable setback allows featuresque appearance • Design flexibility - corners, curves and stairs• Plant supportive rounded or rock - face elevation Transport

• Low transport cost - light weight hollow units • Easy handling for remote site applications

Installation

• Installed using standard industry procedures • No intricate installation manuals required • Special units and connectors not required • One - block system. Low labour & material cost

Design

• Design charts and manuals supplied • Free design software - www.maxiwall.com • Gravity or composite earth retaining options • Specification test results available • I.C.B.O. evaluation report completed* • 80 project profiles on demand • Instant design & planning info - www.terraforce.com• Easy planning with one - block system• Proven product for 25 years

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Gabion wall built with Terra Gabions during 1980

Initially an importer and distributor of wiremesh gabions from Spain, Terraforce became involved in the construction of gabion retaining walls and erosion control measures in 1981.

This led to the realisation that in many instances gabions are not cost effective or practical. After considering various alternative methods that were known at that time, it was decided to design a more versatile one block system.

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Low terrace walls with steps during construction

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7 m high walls supporting a driveway

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Terraforce retaining blocks can be used as part of either a gravity system or as the fascia of a geosynthetic reinforced segmental retaining wall structure or as a fascia for a cement stabilized backfill.

Mass Gravity Retaining Walls

Gravity retaining walls rely on their self-weight to resist lateral earth pressure, and such walls have been in use for centuries.

In a gravity system the Terraforce masonry units can be stacked several courses deep to provide support to the forces imposed by the retained soil; the weight and geometry of the stacked units prevent the constructed wall from sliding on its base or at an intermediate height, toppling over, or rotating out of position.

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Composite retaining wall with L18 split face blocks

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Geosynthetic reinforced soil segmental retaining walls utilize reinforcing sheets of geogrid or suitable woven geotextile which are attached to the fascia and are embedded in a body of engineered fill.

The integrated nature of the fascia and the abutting large body of reinforced soil thereby supports the applied earth forces. In this case the 'gravity' component of the retaining wall is provided by the reinforced soil mass acting as a monolithic unit.

By virtue of their inherent flexibility, such walls are able to accommodate movement and some settlement without suffering distress.

This makes the system particularly suitable for construction on (engineered) filled ground or in areas which may be prone to settlement effects.

Also, the cost and difficulty of construction of such retaining walls is minimized as the need to provide full frost wall foundations can be waived in many circumstances.

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Bi-Annual CMA Awards

Terraforce has secured the Premier Bi-annual Award in the retaining category from the Concrete Manufacturers Association in the years 1998, 2000, 2002, 2006 and 2008 as well as winning several National and Regional Awards at each event.

Mixed pattern

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1) EROSION CONTROL MEASURES

Since 1986 Terrafix erosion control blocks have proved themselves as a most versatile and environmentally sound product. They were designed to provide a cost effective, flexible lining to protect against wind and water erosion.

Recently the new Terracrete Exec. block was added to our range of products. Terracrete is even more cost effective, and can be specified as a hard lawn - drive over for light vehicles, when provided with a well designed subbase.

Terracrete has been designed specifically so that it can be installed with ground anchors for application with high water velocities.

Both these durable concrete units, in combination with the original shape retaining blocks, may be used in most saline or polluted conditions, interlock laterally and offer a secure yet flexible lining.

The products have been specified in applications, designed to charge our dwindling ground water reservoir and to provide a perfect regime for establishing vegetation.

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Small stream and inlet

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Silt traps incorporating boulders

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The end result

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Segmented concrete products are rapidly gaining in popularity over other methods and in combination with vegetation cover are more durable, versatile and cost effective.

From the environmental point of view this combination stands out head and shoulders above other earth retaining methods, such as wood, metal-based materials and rock rip rap.

Culverts large and small

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L13 and Terrafix erosion control blocks to stabilisea fast flowing river bed and embankments

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The project a few years later

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Prevent washout of fill with coarse gravel

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Storm water detention

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Lakeside steps and walls

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Founded at low water mark

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12 years later

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Beachfront protection at Durrat Al Bahrain, Persion Gulf

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Slope Rehabilitation

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2008 CMA Awards Trophy Winner

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Terracrete – parking area with partial grass cover

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Strong Eco-surface for a boat-lifting facility

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Smooth round or flat face

Terracrete – road erosion control in rural areas

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2) FEATURES AND DETAILS

•A living wall:The unique design allows you to make plants a part of your wall.

•Durability:Concrete will not rot and weaken over time, and no chemical preservatives are required.

•Mortarless interlocking systems:The units are simply stacked up without mortar to provide a cost effective, do-it-yourself system.

•Layout flexibility:The half moon interlock easily handles convex and concave curves, and the wall angle can vary from vertical to shallow slopes. You can create steps by reversing the block.

•Colours and textures:Use the blocks round or flat face for the wall front. Consult your local supplier about available colours.

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A terraced garden

DETAILS – FEATURES OF TERRAFORCE RETAINING UNITS

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A terraced garden with good use of plants

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A terraced garden with stairs

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Composite wall with terrace

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Architectural feature – concrete filled

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Seductive curves

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Various design options

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A beautiful desertscape

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Pool and composite retaining

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Terralite D.I.Y. block and gardenscapes

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Gardenscapes - Terralite

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Low wall with Terralite

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Unlimited versatility

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Unlimited curves – affix handrails

3) STAIRS, RAMPS AND HANDRAILS

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L18 stairways and seating

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And the most attractive

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L18 – emergency escape route

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Stand alone stairs with railing

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Walkway to lake

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Retaining, stairs and ramp

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Retaining wall and offset stairs

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Project ready for planting

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A grand stairway – Multi 4x4 and L13 blocks

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Retaining wall and stairs bordering a tennis court

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Various stairways

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Stairs leading to the beach

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Staircase in Dubai

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Urban renewal – low cost pavillion seating

4) SEATING ARENAS

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Amphitheatre for 2000 people - Turkey

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Seating arenas – 4x4 Multi block

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500 seater arena – 4x4 multi block

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Toe wall close to the sea with hardy plants established

4) ROADSIDE AND DRIVEWAY SUPPORT AND PROTECTION

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Driveway support

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Commercial roadside application

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Complete cover for a softer look

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A six meter high noise barrier

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Award winning noise barrier – three undulating terraces

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The same installation a few months later

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Rock face L11

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Composite walls in Istanbul

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5) HEAVY GRAVITY AND COMPOSITE RETAINING

60 000 L13 blocks delivered to site NOT FOR THE FAINT HEARTED!

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The completed wall with vegetation

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Geogrid folded into the blocks – alternatively clamped between blocks

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Reinforced half round supporting the pool

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After completion

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View from pool

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A similar installation

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9m high installation at commercial development

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The award wining installation two years later

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Award winning installation – CMA awards 2004

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Clover interchange in Doha, QatarStairways and mixed elevation

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Pool and composite retaining

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Heavy duty composite roadside retaining

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L11 6 m high composite wall - award winning project

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We offer Green Solutions

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BE WELL PREPARED...with TERRAFORCE

Terraforce offers services of selected approved retaining wall contractors for professional quotations and installations of retaining blocks.

By using these recommended contractors the public has peace of mind that his or her contract will be carried out professionally as recommended by Terraforce, and that the contractor will give a proper guarantee for any come backs that could occur.

Please note that type of blocks available will vary from area to area.

Phone 083 658 1056 for more informationor visit the website for a list of contractors in South Africa.