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Location: North of You
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Any Stone Masons Here?
I have laid a flagstone walkway from my porch to the road, gravel base and screening on top. That job is complete.
Now my cement porch ( 9' W x 4' D) looks bad in comparison, so I want to face it and cover the surface with flagstone. I have lots of 1/2" flagstone rectangles, but I'm not sure what to use as mortar. This is a covered porch, but open sides. It will see snow, rain, and winter/summer temperature extremes (-30F to 95F). I've read that a mixture of lime, sand, and Portland cement is good. Looking at mortar products, there is 'rapid set', and Quick-crete 'plain' and Type 'S' that all appear to be outdoor rated. I would prefer a premixed product, but only if it's not inferior to mixing my own. There are also concrete bonding adhesives that I can use as a surface prep (and the back side of the flagstone?), but they can also be used as a mortar additive. This is a job I want to do once, and do right...any suggestions?
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"A machine you build yourself is a vote for a different way of life. There are things you have to earn with your hands." |
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08-06-2021, 07:18 AM
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Back in the saddle again
Join Date: Oct 2001
Location: Central TX west of Houston
Posts: 55,844
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Give AC78 a few years and he'll be able to tell you how a middle aged guy who changed careers would do it.
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Steve '08 Boxster RS60 Spyder #0099/1960 - never named a car before, but this is Charlotte. '88 targa  SOLD 2004 - gone but not forgotten
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08-06-2021, 07:25 AM
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Lol. I was going to say 'if you're just thinking about becoming an apprentice don't even think of replying'...
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"A machine you build yourself is a vote for a different way of life. There are things you have to earn with your hands." |
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08-06-2021, 07:28 AM
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1990, I don't see it as being any more difficult than concreting down outdoor tiles - other than the varying thicknesses. I think a tack coat of concrete, a layer of concrete around and under each one. Scrub the excess concrete off the surface of the flagstones. Spray with Rugasole. Lightly waterblast the next day. The more rustic it looks the better.
You can do it! Last edited by Bill Douglas; 08-06-2021 at 01:26 PM.. |
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08-06-2021, 01:18 PM
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Document it here. love good stone work.
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jt '83 SC '96 M3 6 Bicycles 2 Sailboats |
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08-06-2021, 06:47 PM
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Timely thread for me. I need to re-do the "epoxy sand" that was packed in between the pavers at the front of my store.
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08-07-2021, 10:11 AM
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Quote:
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08-07-2021, 10:12 AM
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Platinum Member
Join Date: Jul 2001
Location: Leave the gun. Take the cannoli.
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Quote:
If you are laying it 'old school' with joints, you'd set them in mud. Keep it 'loose' to help with levelling. If you want it to last, clean, prime the old cement with a bonding agent, and do a scratch coat. When I started working for dad(my father and grandfather were masons) there were few choices. Portland, sand, lime(every mason had a favorite recipe) and add stone for concrete.
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The truth is that while those on the left - particularly the far left - claim to be tolerant and welcoming of diversity, in reality many are quite intolerant of anyone not embracing their radical views. - Charlie Kirk |
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08-07-2021, 11:23 AM
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Too big to fail
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Obligatory
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"You go to the track with the Porsche you have, not the Porsche you wish you had." '03 E46 M3 '57 356A Various VWs |
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08-09-2021, 07:33 AM
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I was able to find this after a lot of searching...
Quote:
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"A machine you build yourself is a vote for a different way of life. There are things you have to earn with your hands." |
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08-09-2021, 08:30 AM
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For adhesion I would use thin set and back butter the stone. You probably won't get 100% contact but you can mix more TS thin enough to pour like floor leveler and let it run under the FS keeping it low enough to be able to have enough depth for grout.
Use a 1/2" x 1/2" notched trowel. |
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08-09-2021, 09:30 AM
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