Trass adhesive question

[NZ_Tiler]

Can anyone share their knowledge on trass adhesives? Is trass a "cement" itself or is it just an additive?

 

[One Day]

Its a volcanic ash used as pozzolana. Don't know if there's any special properties though. Might be an "eco" thing perhaps?

 

[NZ_Tiler]

Its a volcanic ash used as pozzolana. Don't know if there's any special properties though. Might be an "eco" thing perhaps?

Thanks for the reply. I knew that bit^^ It helps with preventing efflorescences and the like, just not sure if it's the "binder" alone

 

[One Day]

I've dug around Google and can't learn any more sorry! I bet Antonio knows something...

 

[Old Mod]

Trass is an additive to cement or lime, which when mixed with water reacts with calcium to create a hydraulic cementitious product which has high density and waterproofing properties, and that is why it is a good adhesive for softer stones.
Thus providing a good defence against efflorescence, as you said.

 

[Old Mod]

No no, NZ, you're supposed to press the 'best answer' button! 😛😛

 

[NZ_Tiler]

Trass is an additive to cement or lime, which when mixed with water reacts with calcium to create a hydraulic cementitious product which has high density and waterproofing properties, and that is why it is a good adhesive for softer stones.
Thus providing a good defence against efflorescence, as you said.

Do you have any literature about this?
Thanks in advance

 

[Old Mod]

Do you have any literature about this?
Thanks in advance

In what form?
Can I ask for what reason do you want the literature,
are you looking for scientific evidence or are you trying to prove a point?

 

[NZ_Tiler]

In what form?
Can I ask for what reason do you want the literature,
are you looking for scientific evidence or are you trying to prove a point?

I trust your answer, just prefer to have something in writing published.

A tile shop we will be laying for is pushing us to use Sopro products over mapei. One reason was this trass adhesive. I would like to learn as much about it before using...

 

[Old Mod]

Haha not what I meant.
If you need scientific evidence, not much good giving you company spiel from a manufacturer is it?