Pouring a Bathroom Floor

[juan]

HELP!!

I am pouring concrete tomorrow for my bathroom floor. Room floor size is 4.2m x 1.95m and I have set it up for 100mm thick. Have ordered 1.0m3 of concrete.

I plan to put a screed on top of the concrete slab later and wondered if just levelling the concrete off with a plank in a sawing motion will give me the right finish for the screed to bond to?? Will I need to use a wood float at all or would that bring up moisture and make the surface too smooth? This is new territory for me.

Cheers

[bricks]

wood float or broom finish to provide texture for screed to grip to. 50 mm set down minimum, workout if you are going to waterproof under or over screed.???

[juan]

I have set down only 40mm after discussing with several tiling companies including Beaumonts. I will be sloping the slab in the same direction of the fall which will result in a quite uniform screed thickness so it should never be less that 20mm thick screed .

[bricks]

OK should work, 50mm set down is for flat slabs, if yours has fall then 40mm could be useable.

Have you worked out your waterproofing yet?

Personally I go under the screed.