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Surrey, United Kingdom Gb

What is the effect on soil that has been contaminated with cement mortar



I'm pretty certain that cement mortar is alkaline so may raise the soil pH slightly. However I would imagine that the biggest problem will be that when it gets wet it is going to go lumpy. If it is only a very small amount it probably won't really matter too much but otherwise, I would suggest clearing the 10-15cms of affected soil and replacing it with top soil from another part of your garden (or buy some bags of top soil/soil conditioner from your local garden centre ) and mix it up with the existing soil.

29 Mar, 2010

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