Determining Depth

Ground sockets protect surrounding foundations from damage and if installed correctly, will never need replacing. Lifetime Warranty *

Sockets available in 

  • 150 mm depth
  • 350 mm Depth
  • 650 mm Depth

although can be truncated at any vertical rib or extended to any depth.

 

What depth socket should I use?

NB: The socket is simply a shield to protect the foundations from damage and make items removable from the concrete foundation- it does not affect the size foundation required. The base must be made large enough to ensure it remains upright when the item is impacted. The size base really depends on the soil conditions, the size of the item, wind conditions and potential impact force (slower speed impact is actually worse than high speed as the post bend much easier upon high-speed impact). 

The Impact Recovery System reduces the size base required to secure a bollard as the System is designed to absorb the impact force protecting the foundations from damage. You can now install bollards from as shallow as 350 mm.

  • 150 mm sockets are for securing small items such as small signage on solid concrete traffic islands or footpaths, small barriers, bins, street furniture secured to solid concrete or asphalt foundations.

  • 350 mm is standard depth used for most applications used to secure any post, bin, bollard, barrier or item of street furniture (you can secure foundation to road base or asphalt, and can bell out the concrete base to improve stability).

  • 650 mm is used for large items such as large signage, large statues, football posts and large bollards installed using stand-alone foundations secured into soil (ie: new concrete cannot be secured to existing concrete or asphalt foundation) such as school signposts that are highly vulnerable to vandalism and signposts in regions that are vulnerable to strong winds.

 

See below for more details including drawings

 

New Works

For new works - simply use installation tool to position ground socket upright and pour concrete to secure. The Ground socket is installed flush with the surface and must be completely encased in concrete. Always allow a minimum of 50 mm around socket to secure it. You can pierce hole in socket and place rubble beneath socket, to allow drainage or entry for electrical wiring.  More Info

 

Paved Areas

The socket is installed flush with the surface and must be completely encased in concrete (ie: minimum 50 mm around the top of paved areas to secure socket and protect surrounding paving from damage. Allow space for paving so socket finishes level with road or footpath. If there is soil beneath pavers we recommend you install a foundation beneath the pavers of at least 300 mm square to provide stability and ensure against dislodgement when an item is impacted. We do not recommend using 150 mm sockets in paved areas. More Info

 

Existing solid concrete foundation

The socket is installed flush with the surface and must be completely encased in concrete. Core drill hole large enough to fit the socket and fill the gap with concrete to secure socket to existing foundation.  We recommend 150 or 350 mm ground sockets (650 mm is not necessary for solid concrete footpaths or foundations) NB: We also provide a Smart surface mount option.  More Info

Free-standing installations

Socket is installed flush with surface and must be completely encased in concrete. We recommend you install a 700 mm deep (minimum 50 mm beneath socket (suggest increasing depth 1m for bollards likely to be impacted by trucks or heavy vehicles at low speed) x 300 – 400 mm square foundation to provide stability and ensure against dislodgement when an item is impacted. If the soil is sandy we recommend a 400 mm square and you can bell out the bottom to provide added stability. More Info

MRWA specification drawings

By using Smart Sustainable Foundations posts and other roadside items such as bollards and grab-rails, can be installed from 150/ 350 or 650 mm depth (as opposed to 900 mm depth specified by MRWA for the installation of RHS posts). More Info

 

* Lifetime Warranty is void if ground sockets are not installed according to instructions.

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