I've never done a patio before. I've created a based by clearing the area then flattening the soil with a whacker plate, added a layer of scalpings and whacked all that down too so it's flat and solid. I'm now ready to lay the sandstone pavers and I'm wondering what mix of cement and how wet to mix it. Also, I've been told to create a "slurry mix" and paint it onto each stone...what is this and how do I do it?
There are several commercially available slurry bond products that you can paint on the back of the slab. I personally have used SBR liquid on all the slate and sandstone patios I’ve ever done and never had any problems. A mix of 4:1 sand and cement, wet enough to shape but not slump works for me. If you look up a website called Paving Expert dot com, you’ll find this the most comprehensive and accurate resource for any type of paving job, I highly recommend looking there for the very best advice to be honest.
Paving expert recommend a bedding mix between 6/1 and 10/1. The idea of a slightly weaker mix is to allow any moisture that gets through the joints to drain through the bed and sub base. The joints can be a stronger mix.
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