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Retaining Blocks

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Specifications

Block type units per m² of wall

 L13/13

L18/18

L11e/11

Length (front to back) (A mm)

425

350

 350

Cover (left to right) (A mm)

340

280

 400

Height (h mm)

225

200

 225

Wall thickness

50

45

 45

Av. mass of block (kg)

32

20

 27

Infill volume (m)³

0.018

0.011

 0.015

Av. mass constructed kg per m² of wall (single skin)

750

600

 550

Min crushing str of block under in-situ loading/Mpa

8

8

 8

21 day cube strenght of concrete (uncured) = 25 Mpa min       

Min frictional resistance between blocks without keys:Cf

0.54

0.54

 0.54

Features

tf3.gifListed below are contributing to the growing popularity of Terraforce among architects, engineers, developers, contractors and home owners. Terraforce blocks are manufactured under controlled conditions in factories on five continents and may be employed to solve from light erosion control applications to heavy composite earth retaining requirements. Our consultants will gladly share their experience of many years with you to maximise the environmental and aesthetic opportunities that exist on your site.

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Hollow core reversible units.

Chose between round face,
(plant supportive) or flush face (smooth or split version) to suit your requirements. Units are light weight for easy delivery, handling and installation, yet heavy in mass when filled with soil, gravel, or concrete. Set fence and handrail posts within blocks.

Unique Horizontal Interlock

With optional vertical interlock allowing for seamless variations of wall inclination (90-35 degrees). Eliminate the use of geogrids in many cases. Convex and concave corners and curves of unrestricted radius allow complex designs to suit site conditions.

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DESIGN CHARTS for the smaller units are provided to suit most sites where relatively light retaining walls are required. Where medium to heavy retaining walls are necessary, other Terraforce products are available to provide lasting solutions. Extended applications must be individually designed by a qualified engineer. These will include composite structures with geogrid or cement stabilised backfill, or when double / single row designs are to be combined with reinforced concrete infill. The comprehensive guide to the design of Terraforce L13 retaining walls and the Terraforce design and installation manual for geosynthetic reinforced soil applications will provide the necessary information. (Design Options).

CONSTRUCTION must be carried out in accordance with practical installation guidelines and details as contained in our construction manuals. The units are light and easy to handle before filling. No special construction skills are required.(Installation Guides).

COST EFFECTIVE Terraforce walls may now be turned into a growing investment by your creative choice of plants.

Benefits

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.