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Effect of Salt on Sandstone


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I had a small piece of horsetail growing up next to the sandstone path leading to the house. I put a small amount of salt (NaCl) on it to kill it, as I often do for horsetail growing on its own. Unfortunately I didn’t know how damaging salt can be to sandstone until I searched the internet. The effects of de-icing on sandstone buildings in some Scottish cities is well documented. It’s a pity I hadn’t heard about it and this is the result. Needless to say I won’t be de-icing my paving with salt this winter.

346428971_SaltonSandstone.thumb.JPG.9834dce584f048b296c51a45c7012028.JPG

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