Joined: July 2004
||Posted: 23 July 2017,14:07
Icy? In July? Where the bloody hell do you live???
All CBPs sold in Britain and Ireland from recognised manufacturers, such as Marshalls and Formpave, have to meet a minimum requirement for Slip Resistance Value (SRV).
Sometimes, when pavers have had a few winters out in the cold and damp, the weathering process results in a rougher surface which can (sometimes) have a higher SRV than the blocks had when new.
You should NOT put de-icing salts on CBPs (or any other concrete paving). You can put grit sand down, which will temporarily improve traction in icy conditions, but not salt, which will destroy the concrete surface.
The stated SRVs of both Marshalls and Formpave blocks is not too dissimilar. I would guess that your perception of the latter being slippier is due more to unfamiliarity more than anything else.
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