Construction materials
Introduction
The photograph on this page of Construction materials by Bob Harvey as part of the Geograph project.
The Geograph project started in 2005 with the aim of publishing, organising and preserving representative images for every square kilometre of Great Britain, Ireland and the Isle of Man.
There are currently over 7.5m images from over 14,400 individuals and you can help contribute to the project by visiting https://www.geograph.org.uk
Image: © Bob Harvey Taken: 24 Oct 2017
I ham unsure what these black plastic things are properly called - the labourers were calling them "beer crates". They are used in the sandy subsoil, interlocked with clips, to provide some sort of structure beneath the paved areas of the new car parks around this building. I believe they might be what is known as Attenuation cells, (also known as Storm Cells, Soakaway Modules, and Storm Crates), designed to form a soakaway.