Myths and Misunderstandings: Testing the water resistance of grout

[Rizzle from the Portizzle]

Could do with one replicating an actual wet room shower. Albeit on a small scale. So mosaic floor with a more course floor grout. 20 or so joints. Then wall grout on the sides with mosaics.

It's what I was expecting to be fair. Thought you'd have done something akin to that from the off.

Fair play for doing it though pal. Most people wouldn't give such a toss.

hi dan to be fair have a good look round the fourm and you can do a count how many bath shower rooms are tiled with small tiles how many with 600x300 and bigger . in london i would say small tiles and mosaic
one in 200 shower rooms if that .and to balance this deans grout joint will be under far more presure with wieght of water constant .not like on off shower .

 

[The D]

30mins - 1hr busted no water yet

 

[Dan]

hi dan to be fair have a good look round the fourm and you can do a count how many bath shower rooms are tiled with small tiles how many with 600x300 and bigger . in london i would say small tiles and mosaic
one in 200 shower rooms if that .and to balance this deans grout joint will be under far more presure with wieght of water constant .not like on off shower .

That's not how it works mate.

If we're being fair as you say, it could do with more grout surface area per square cm of tile. The pressure won't be much for that cubic meterage of water. It's not deap sea depths.

It's all traffic for me though matey let's make another few of these threads.

 

[Dan]

wow what a good post makes you look sooooooo cool

Teehee

Sorry I'm not as cool as you Deano.

 

[andy8758]

Can you find me that thread by any chance? We have a new tests forum category I'd like to move it to.

It was done by Plan Tec Tiling - link to one of his posts is here Electric UFH - Heat retention tests of insulation boards
But I think he copied it from the original a year before

 

[Dan]

It was done by Plan Tec Tiling - link to one of his posts is here Electric UFH - Heat retention tests of insulation boards
But I think he copied it from the original a year before

Thanks buddy.

I've sticky'd that in the forum it's in. It'll have some use being open to the public then. That appears to be a thread that's aimed at helping the trade and not just a 'how big are me balls' type thread.

 

[Spare Tool]

30mins - 1hr busted no water yet

That's me out of the sweepstake then...damm it knew you should have used mosaics, will you be up all night watching for ingress then

 

[Dan]

That's me out of the sweepstake then...damm it knew you should have used mosaics, will you be up all night watching for ingress then

I'm still in.



If that's 450 x 900 x 450mm with a single 435mm x 3mm grout joint using fine wall grout. And the adhesive is 4 or 5mm thick. That cardboard is going to see more moisture out of the air surrounding it.

 

[Dan]

30mins - 1hr busted no water yet

If you lift it above your head does it look like it's doing anything underneath mate?

 

[The D]

Thanks buddy.

I've sticky'd that in the forum it's in. It'll have some use being open to the public then. That appears to be a thread that's aimed at helping the trade and not just a 'how big are me bal

30mins - 1hr busted no water yet

ok we have a winner 6.5 hours fully submerged with standard wall grout

 

[John Benton]

I'm actually surprised it took that long.

Although showers aren't subject to constant submersion in water, it shows that grout/adhesive is not 'waterproof' as many customers believe it is.

The thing is, once the water has penetrated the grout it's into the substrate, and that starts to spell failure, hence why I tank all showers, even over the bath showers. I only take it up a metre above lip of bath and tank the shower wall and approx. 1m in length on long side of bath.

Interesting to see where the water has actually penetrated. You can see the small dots I suspect where the grout joint is but it concentrates more at one end. Was the box on a slightly uneven surface Deano?

 

[macten]

I think nearly 7 hours is pretty impressive.
I'd be curious to see how long it would take if box was primed and a modified grout was used.
Got an op on Wednesday so not working for next 2 or 3 weeks, if Dean doesn't want to do anymore tests then I can.

 

[Old Mod]

[QUOTE="macten, post: 781811, member: 2899"
Got an op on Wednesday so not working for next 2 or 3 weeks.[/QUOTE]

Good luck with that Nick!

 

[The D]

I think nearly 7 hours is pretty impressive.
I'd be curious to see how long it would take if box was primed and a modified grout was used.
Got an op on Wednesday so not working for next 2 or 3 weeks, if Dean doesn't want to do anymore tests then I can.

Go for it m8 it's all good

 

[macten]

Cheers -

[QUOTE="macten, post: 781811, member: 2899"
Got an op on Wednesday so not working for next 2 or 3 weeks.

Good luck with that Nick![/QUOTE]

Cheers,
I take it from your profile pic that you skydive?
My op is from a skydiving injury 20 years ago.
Where do you jump? GoSkydive? I mainly jumped at Langar but stopped nearly 10 years ago.

Back on topic - Will definitely do another test in the coming weeks