Mar 31, 2010 7:06 pm
hello.. anyone know if there is a do or dont with floor screeding... i was told to never use bondcrete in a bathroom because it can imulsify due to moisture.. in perth for some reason our bathroom floors are a not very strong mix of concrete like a slab would be.. very sandy mix of sand , cement.. if not sealed properly they become very drummy.. and sometimes crack.. i was taught to use water and general purpose cement to form a slurry and brush on floor then screed with dryish mix 3 or 4 to one cement mix and ram pack floor to level.. now im told to add boncrete to slorry and cement mix.. any idears on hows right or wrong.. or where i can get standards fromm.. people demand guarrentee,s now days and its very costly to go back and fix cracked tiles and drummy floors.. thanks big mac
Re: screeding floors2
Mar 31, 2010 11:05 pm
BC as an admix it is fine but not a bonding product in a wet area.
There are other cross linked products that don't re-emulify.
But dry pack is the best way.
Where you are coming from is where you are going to...
Re: screeding floors4
Apr 16, 2010 8:24 am
What I have done is water proof – dry mix – water proof again.
2 layers of water proofing may be overkill, but I’d rather be safe than sorry.
Plus the second layer of water proofing prevents the musky or mouldy smells.
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