What is the best cement mix when re-pointing a wall?
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Answers:
All the answers will be fine ( 3 sand 1 cement ) but unless you want your pointing to stand out like a sore thumb try making up three v/small mixes of 3&1, 4&1, 5&1 then check for colour suitability. Also when you do the pointing squeeze a "shot" of washing up liquid into your mix, and be sure to take your time.
Look at this site, hope it helps.
http://www.diynot.com/pages/op/op005.php...
Three of soft sand to one of cement. Three and a half to one is easier to handle, but tends to fall out.
3 sand 1 cement 1 suirt of febmix to make it fatty
best mix for making a plaster wall is 1 part cement to 2 parts fine sand.
after plastering it to your existing wall. mix a pure cement and finish your plaster with that mixture then wipe with foam to smoothen. or you can even use a news paper.
just make sure you put nylon lines on your edges to serve as guide.
and dont mix too many water.
hope this helps.
3 or 4 to 1 as above, but that is assuming you have medium porocity brick with about a 10mm mortar line. It would vary for harder bricks, stone or differrent pointing gaps.
but if its an old wall you would be best considering a natural hydraulic lime mix rather than cement, it will allow the wall to breathe.
3 sand one cement and a squirt of fairy liquid in the water, makes it far easier to use.
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