S
SnipSnap
Well today (Monday) was a great looking day and a perfect start to do my screed.
I use what we call down here a medium washed river sand for our screeds mixed with gp (General purpose cement) to a ratio of 4:1 and mixed with enough water to make a stiff fairly dry mix. You should not have any excess water come up to the surface whilst screeding that would be too wet just enough water so the sand will pack down and hold together.
Pic 1 & 2 Show me priming the shower recess with a slurry of water and cement. This gives the screed some suck down and bite onto the waterproofing acting like a scratch coat.
Pic 3 & 4 Show the sand and cement mix being placed into the recess then the back wall is floated and levelled this is reapeated on all 4 sides of the recess then the middle is floated to the waste with an 8-10mm fall so the water runs to the drain.
Pic 5 & 6 show the other end of the bathroom with the screed sticks in place. Simply level the screed sticks add the mud and screed off to the height of the sticks so you get a nice level surface especially where the toilet and vanity are to be situated. Then once youv'e done about half a meter or so pull the screed sticks towards you and fill and float the troughs in the screed they leave behind. Your ready to start on the next section, keep repeating the process until you work your way out.
Pic 7& 8 show the finished screed. It took me about 3 hours to mix cart and screed this floor on my own. Allow to dry for at least 24 hours or longer before tiling.
If you have any querries or questions Just ask away and I'll do my best to point you in the right direction.
Hey Mick, It looks good from here.
I havent done screed for a long time but I remember this particular swimming pool job where the guy that I worked for (great tiler), asked me to make mix with 3:1 washed and graded, medium coarse sand and cement but no water!
Instead we used Bal Bond (neat). Spreaded with a large tiling trowel as if was adhesive. The next day was ready for the first coat of render... Wow! I think that scratch coat could not be shifted even if you throw a hand granade. :59:
