Browse Forums Bathrooms and Laundry 1 Dec 06, 2012 3:42 am We are planning a stained concrete floor throughout our entire house. Can the shower floor, which is continuous from the rest of the house and bathroom, be of the same stained concrete, or do we need to do something different with the mix? Re: concrete floor in shower 2Dec 06, 2012 4:32 pm Two problems. First how are you going to waterproof the connection between the wall and the floor? Secondly it will be quite hard for the concreters to make the 'pan' with the appropriate falls if it is part of the main pour. Far too fiddly if not impossible. Re: concrete floor in shower 4Dec 07, 2012 6:36 pm I saw this once in a display home so I suppose its possible (or somebody thought so at the time). I'm sorry I can't help with details because I didn't think to ask any questions, I just saw it and thought humm, that's interesting. My feeling is that if the concrete contractor can't answer your questions and is leaving it to you to find out how it ought to be done then that would make me nervous cos some of our problems were when the builder was doing something non-standard (one still annoys me cos it became very popular and it would of been worth his while to learn about it instead of slapping it together any old how).
Re: concrete floor in shower 5Dec 08, 2012 11:05 am Have a first poor done in the bathrooms and do the waterproofing at this stage. Then do a final poor 60-70mm thick ontop when the rest of the house is done. Tile the walls down the the floor and put a flexiable sealant between the floor and tiles. Cutting Edge Kitchens and Cabinet Making http://cuttingedgekitchens.net.au http://www.facebook.com/pages/Cutting-Edge-Kitchens/290484196676 Mobile : 0419 430 575 PH: 9452 4772 Fax :9452 4772 cuttingedgekitchens@outlook.com Re: concrete floor in shower 6Dec 09, 2012 12:28 am We intend to finish the concrete with a stain and smooth finish--like Wal-Mart's floors, if you are familiar with their floors. However we have heard that over time that the force of the water will eat away at the concrete. Would this be true with our smooth finish, or just ona bare concrete floor like in a basement? Re: concrete floor in shower 7Dec 09, 2012 1:20 pm feedteam We intend to finish the concrete with a stain and smooth finish--like Wal-Mart's floors, if you are familiar with their floors. However we have heard that over time that the force of the water will eat away at the concrete. Would this be true with our smooth finish, or just ona bare concrete floor like in a basement? Over time water will eat away at almost everything. But over the lifespan of a bathroom I am not sure. Cutting Edge Kitchens and Cabinet Making http://cuttingedgekitchens.net.au http://www.facebook.com/pages/Cutting-Edge-Kitchens/290484196676 Mobile : 0419 430 575 PH: 9452 4772 Fax :9452 4772 cuttingedgekitchens@outlook.com Re: concrete floor in shower 8Dec 30, 2012 1:52 pm Oz Building regs require a continuous waterproof surface (floor and wall) to cover a minimum area /distance arround a shower rose. Concrete on its own is not classified as a waterproof surface. It is, if it has an "approved additive". I have never found a list of the approved additives. However various concrete suppliers ( boral etc) have said that the addition of a waterproofing solution ( various brands - they hav the details ) to the mix will make a batch in the delivery truck waterproof when set.. The difficulty is in insuring that that particular batch goes in the right place in the slab during the pour. Their suggestion has been to make it the first truck delivered, and to pour the wet area first ensuring the first truck covers the entire wet area floor + some excess for safety margins. With the wall - the sugestion is to build the wall ( stud/brick) on top on the waterproof concrete , and then apply the usual waterproofing product both to the wall and the edge of the floor. Then tile/sheet the wall , and then place a neutural cure silicone bead in the crevice between the final wall surface and the floor surface. I'm still investigating all this myself. Another solution is that there appears to be some post pour applications that can seal the concrete during/prior/after polishing the surface - not so clear on this one. cheers Re: concrete floor in shower 9Dec 30, 2012 2:06 pm CuttingEdgeKitchens Have a first poor done in the bathrooms and do the waterproofing at this stage. Then do a final poor 60-70mm thick ontop when the rest of the house is done. Tile the walls down the the floor and put a flexiable sealant between the floor and tiles. This will work/meet Oz standards PROVIDED that the waterproofing between the two concrete pours is done in a way that the floor waterproofing between the two slabs WILL meet up with the waterproofing of the wall with a waterproof join. Just puting a silicone cauk between the top layer of concrete ( still water pourous) and the tile and tile grout ( also water pourous ) may not stop water from traveliing through the gout , behind the tile, into the wall/floor joint , and getting into the adjacent room's floor/wall. If you don't to this Is this G'teed to generate a problem later - NO - my parents 1948 shower concrete floor/ brick wall had NO waterproofing at all, and never leaked untill the 1970's wall tiles lifted and the gout leaked- and then that was fixed for 4 years by applying 3 coats of external quality solarguard green paint on the exposed brick work in the shower alcove !!!- but ???? Re: concrete floor in shower 10Dec 30, 2012 2:14 pm feedteam We intend to finish the concrete with a stain and smooth finish--like Wal-Mart's floors, if you are familiar with their floors. However we have heard that over time that the force of the water will eat away at the concrete. Would this be true with our smooth finish, or just ona bare concrete floor like in a basement? My parents 1948 bathroom floor was fine entil itr got pulled up 3 months ago - BUT - its 13mm top coat was probably a cement rich mix which was steel trowelled to a smoth finish that looked just like grey slate in its top 3mm. Its MPA was probably well into the 90s+ while a general purpose house slab needs only to be 25mpa, and polishable contrete surfaces/slabs are generally 32mpa. You may find that you need to specifiy a higher MPA mix for the wet area. True terrazzo is often into the 130+ mpa - but it costs the earth, needs to be mixed on site - and most modern concreters have no idea how to do it. Re: concrete floor in shower 11Dec 30, 2012 9:14 pm Where you are coming from is where you are going to... Thank you Splashers. Tomorrow I might check if I can get a few packs of 300x300 in the same tile finish. It may be good to use these could in the shower recesses. 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