Efflorescence

[Sean Page]

Ask as many questions as you want Dave

I've been scratching my head on this one too. I've tried to go back deep into the memory banks and remember if there was anything out of the ordinary with this job. At the time it was just a normal job. I'd been on the job for a while, completed bathrooms, splashbacks, various other floors etc etc.

This was the main kitchen/dining room/utility area. Nothing unusual apart from this tinge. I do remember I was working late so it was grouted before the other trades came back because of the size of the area that I had closed off for a few days. I may have got on the grout a little too early but I couldn't be sure. I certainly wouldn't usually because IMO that makes the whole finishing process more difficult.

I'm at a loss with it. If it was something I've done, I'd rather know so it doesn't happen again though.

I'm just thinking what can be done to rectify the problem so that the customer is satisfied.

 

[DHTiling]

Sean.. if it was a hydration probem then it would affect the hardness of the grout.. this is if you grouted below 5dgs cels...

I would go look at the job first and if the grout is coming out then call a BAL pst out..

I am not sure who is the pst for your area as the present one has moved jobs i am led to believe.. but they will send someone out.

It is worth doing as it could be a bad grout batch.... and then take it from there...But i deffo would say it isn't effloresence..

 

[Gazzer]

I would say that if it were wooly hat weather while indoors and working then it was far too cold IMO

 

[Sean Page]

This is currently the only pic I have available.... the wooly hat was ALL I was wearing 😳

 

[Rob Z]

Hi Sean, What is the substrate?

 

[brian c]

Re: Efflorescence
permalink

Effloresence is just salt migration from the substrate or adhesive bed.... i can't see it causing the grout to break down and come out of the joints..

Dave thats what i couldnt understand.

 

[Ajax123]

Hi Sean, What is the substrate?

Took the words right out of my keyboard

is there any sign of the tiles delaminating and moving?

 

[jamie B]

be interested to know what happens as I have a similar prob with BAL wide joint at the the mo..please keep us updated!

 

[DHTiling]

Hi Sean, What is the substrate?

Took the words right out of my keyboard

is there any sign of the tiles delaminating and moving?

Seen as no ufh.. then i presume timber of some sort..as super flex grout was used.

 

[Ajax123]

I suppose efflorecence makes some sort of sens in a wide joint grout as it offers a much wider area for the migration of moisture from the substrate or addy bed. the wider it is the faster it will allow the moisture to escape and so the more chance of efflorecence.......as has already been said though this would not cause a cementitious grout to "break down"