When can you use a dry mix of concrete and sand. I am building a patio and have a hard core base. Can I put a dry mix of sand and cement on it, allow it to harden and then put slabs on it?
You need a wet mortar mixture of mainly building sand mixed with cement. You can add a shovel or 2 of sharp sand into a mixer. Have the mixture wet to apply the slab to stick to it while you tap them down with a rubber hammer and to the right levels.
Also don't dot/dab or five spot the wet mix I would recommend full cement beds. Do the outside then add a bit in the middle
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by martin2417 » Sun Jun 21, 2015 10:44 am 
