The Brew Cabin

Posted: **Wed Sep 07, 2011 6:01 pm**

Hi,
Hopefully someone can help me with this! I've just had a 5.00 x 4.20 concrete slab laid (Last Friday), it has, or should have, a 50mm fall. The problem is that towards the end of the fall there are two areas where rainwater is settling, very shallow admittedly (3-4mm max), but for hygiene reasons I'd rather it didn't as liquids other than water will also settle! Yuk...

I need to know what to tell my builder to do about it, if indeed he can! I'd rather not get into telling him to re-lay the whole slab if poss.

Any advice gratefully received!

Supermoto

Posted: **Wed Sep 07, 2011 6:51 pm**

maybe have it tiled, should solve issue and even better hygiene wise, FLC wont work.

Posted: **Wed Sep 07, 2011 8:01 pm**

Tiles and dogs not the best theyd be slipping all over the show, bit late to rub it up now so my only suggestion would be to groove it with a saw falling to the drains,

On a slab that size he'd have used expansion or crack control joints anyway so if he can mirror them won't look to bad.

Or........

Then there are concrete floor grinders that use coarse blocks to grind the concrete down surrounding the depressions

Edited By GB_Groundworks on 1315422120

Posted: **Wed Sep 07, 2011 8:11 pm**

GB_Groundworks wrote:On a slab that size he'd have used expansion or crack control joints anyway so if he can mirror them won't look to bad.

what a 20m2 slab giles?
thats a typical garage floor sized slab and I have never put crack control joints in 1 yet

to the OP there should be no water laying if it has a 50 mm fall,what is the finish ?
bushed and troweled ,tamped? powerfloated?
LLL

Posted: **Wed Sep 07, 2011 9:14 pm**

Hi

I suggest you mechanically prep the floor with a scabbler or shot blast or grinder to create a mechanical key. Clean, damp, mix and apply a primer slurry of Ronacrete Standard Primer then lay a minimum thickness 6mm screed using Ronafix Prepacked Screed.

There is also a site batched option which works out more economical.

And yes, it's fine in dog runs. Ronafix for guide dogs

The Brew Cabin

New concrete kennel base problem - Slight pooling of water