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The roads on the way to work and back today seemed remarkably slippery. Yes, they were damp but does the salt residue from last week make them worse? Just wondered what others thought.
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I think most authorities spread sand/grit with salt added. The salt lowers the freezing point of ice/water and hopefully 'melts' it all. After a day or two (sooner if it rains) the salt has dissolved and run off, probably leaving some sand, but the freezing point is no longer lowered so any water film may freeze again. However this should be better than a greasy road such as happens with light rain after a long dry spell.
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I always find the grip levels drop dramatically when the first salting of the winter is applied, they don't recover until after the first good rainstorm after the final salting. Today has been a nightmare for grip on main roads, as they salted last night but it didn't actually freeze.
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Too b***** right it's slippy - I actually got the back end out on the Mini today on a roundabout.
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I don't know if it's the 'kind of weather' or just the salt, but the roads seem to stay very damp even though it's not rained up here for some time and the wind has been blowing strongly all day. If there's no salt down, then the roads seem to dry much quicker.
To paraphrase carayzee - I actually got the back end out on the bike today at a corner - pass me the bicycle clips!
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Salt attracts moisture, so if there is salt down the roads will stay damp if the atmosphere is at all humid.
HTH
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