Fresh screed!!!

[hillhead]

Hello buddies,
ok to start with i have a 30m2 floor in the hotel to tile on MONDAY !
Has to be finished on monday as there is a big rush in this end of the hotel,its only a prep kitchen floor this one,problem is the screed has only been put down yesterday(thursday).
There is a rapid set additive applied to it and was walked on today and feels nice and hard, cures very quick i'm told,but i have to supply the addy for monday and was wondering what i should use?????????
Mapei is my fav brand but need advice,a flexi to help the bond i think is in order,not nice tiling so soon on fresh screed but i have little choice.
What would you use??
thanks.

 

[Droopy]

Bal Green Screed, mate.
That has to be the best option on this one.

Branty or Gaz should be able to tell you exact specs on that though.

 

[davy_G]

Joe, have you thought of ditra matting first? Might take a few more hours but you are gonna have a long day anyway!
The matting would guarantee you any vapour could move out and not cause the tiles to go boast and lift.

 

[grumpygrouter]

I go along with the Ditra myself. Maybe cover all bases and use green screed addy under the Ditra?

 

[hillhead]

Thanks Drew and Davy,
not sure if the green screed works well after 3-4 days!
Not sure if the matting price would go down wel either,i'm supplying though.

 

[Spud]

you can use green screed adhesive from bal it is a really good adhesive but i dont think you will be able to grout it especially if the tiles are porcelain i used gsa last year and remember having to wait 2 weeks to grout it please correct me if i i am mistaken you would probably be better off with an uncoupling membrane at least you can complete the floor then

 

[hillhead]

The tiles are Pilkingtons i think,small 6" or 8" square !! lovely with that amount of mtrs ! non slip for them lovely cooks and all,lol.

 

[Droopy]

Thanks Drew and Davy,
not sure if the green screed works well after 3-4 days!
Not sure if the matting price would go down wel either,i'm supplying though.

Just looked through the specfor Bal GS.
If it's S&C then it only has to be left for 24 hours.
If it's concrete, then it's a week.


http://194.223.92.131/pdf/Technical%20Data%20Sheets/B%20&%20C%20Technical%20Data%20Sheets/BAL_Green_Screed_Adhesive.pdf

 

[sWe]

MAPEIs most flexible adhesive is called Elastorapid I believe. It's their newest adhesive I belive.

 

[DHTiling]

If you are going to use Ditra then you will need to use a standard setting highly flexible adhesive on fresh screed.......bal green screed and bal spf are among a few that are ideal.....

 

[CJ]

CEMENT: SAND SCREEDS:
Lay screed to the required thickness in accordance with BS
8204:1999 using appropriate cement and fine aggregate sand
(BS 882:1983 Grade C or M) in the proportions 1:3 to 1:4.5 parts
by weight. Cement: sand screeds, including BAL Quickset​

Cement screeds, must be at least 24 hours old prior to tiling.

Bal green screed addy .................but no guarantees:whatchutalkingabout