Winter is approaching, so you are probably thinking about stocking up on the essentials, grit bins, spreaders and of course salt/grit. But did you know there is some science behind a good spread.
GRITThe cheapest thing you can buy in winter to put on ice and snow. It is not intended to melt the ice/snow however, it is purely used to give traction and grip when vehicles drive over it. Grit has a high moisture content which makes it difficult to spread, although this does get easier when bone dry.
ROAD SALTRoad salt is very similar to grit in appearance but works in a very different way. This salt works by lowering the freezing point of the moisture around it, to work effectively however it needs to be crushed into the ice by traffic and dissolve. This salt however loses its effectiveness once temperatures hit more than -5, and if it gets to -10 then it is virtually useless.
PROCESSED SALTProcessed white de-icing salt is a much higher purity grade than road salt. This means that it will not create that lovely brown sloshy stuff we see that road salt causes. Processed salt is clean and leaves no messy or gritty residue; it’s also what we sell here at ESE Direct as we find it has the best results.
ICE MELTIce melts are relatively new to the salt spreading market; they are designed specifically to give a better performance for a range of temperatures. They also do not absorb as much moisture as salt which means they are a lot easier to spread and because they are not salt they are non-corrosive. You will find these are used outside of tube stations so that salt is not trodden onto the escalators which eventually cause breakdowns.
Author Bio - Laura Holland
Social Media and Web Content Coordinator, Jan 2014 - May 2015