New answers tagged mortar
I and many others on the web have had mortar not set and have tried many options.someone said it goes off another said some thing evaporates in it,I have tried many options and it is sandy and scrapes out when dry? i use premix mortar from mega and my brother-in -law a builder had the same problem.its driving me mad trying different mixes with no ...
We always use mastic on walls and yes it sometimes takes 3 days to dry but it's the best. When using wet saw to cut the tiles you have to dry the back of them before installing. Thin set (motars), if you clean the joints really good and wash your tiles with a damp sponge it will never show through grout. I always do this so there is no gray or white thinset ...
I think you can assume the cement mix is about the same density as sand. It won't be exact, but since the cement is the smaller proportion the error won't be great. According to this site, 1 cubic meter of beach sand weighs 1,529.20 kg.
Mortar and grout both contain cement so they should form a positive mechanical bond. What may prevent this is if a sealer has been applied to the grout. The depth of the joint is important. If the joint is 3/8 inch in height it should be close to 3/8 inch in depth. This also ensures that enough mortar can be troweled into the joint to bond with the brick ...
Mortar mix:1/2 of a 94lb bag portland cement 1/4 of a 50lb bag type S lime 14 shovels Masonry sand Aprox. 3 to 4 gallons water this depends on the thickness that you prefer for the application.
Mortar is definitely not waterproof as such but neither is it affected by water (unless freezing). Water penetrates a brick wall so far under normal conditions and then dries out during intervening dry periods.
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