Tile Adhesive Testing - Strength

[Aston]

i did notice one thing on that video regarding the slurry mix for the porcelain tiles? was that modified?? or was it just a neat cement slurry? just thinking about the affect it will have on the test results.

 

[CJ]

No knee pads :yikes:

 

[Rizzle from the Portizzle]

i did notice one thing on that video regarding the slurry mix for the porcelain tiles? was that modified?? or was it just a neat cement slurry? just thinking about the affect it will have on the test results.

just standard like i used to use

 

[Protilers]

i did notice one thing on that video regarding the slurry mix for the porcelain tiles? was that modified?? or was it just a neat cement slurry? just thinking about the affect it will have on the test results.

That was the whole point of the sand and cement ED......no sbr in the mix....just plain old sand and cement.......and to quote Ray.....it was the cheapest cement I could get my ands' on!!!

hehehehehehhe!

Best Wishes

Lee

 

[Aston]

That was the whole point of the sand and cement ED......no sbr in the mix....just plain old sand and cement.......and to quote Ray.....it was the cheapest cement I could get my ands' on!!!

hehehehehehhe!

Best Wishes

Lee

when you say, 'that was the whole point of sand and cement', no sbr in the mix...what you you mean? you have to treat the porcelain tile different to the ceramic because if you slurry the back of the porcelain with water and neat cement, then it wont form a very good bond will it...even in the 70's and 80's my old man would mix sbr and cement when fixing porcelain in sand and cement.. sbr has been around since the 40's so ray must have been fixing before the war ;0)

 

[DHTiling]

Or he was too tight to buy SBR Ed.. :lol:

 

[Protilers]

when you say, 'that was the whole point of sand and cement', no sbr in the mix...what you you mean? you have to treat the porcelain tile different to the ceramic because if you slurry the back of the porcelain with water and neat cement, then it wont form a very good bond will it...even in the 70's and 80's my old man would mix sbr and cement when fixing porcelain in sand and cement.. sbr has been around since the 40's so ray must have been fixing before the war ;0)

Hello Ed...

the point was do it bare bones and "see what happens"...we want to see how they all stick without the use of any additive etc...as in.............. do we even need an additive?......
and I have no idea about how well it would stick because I have never done it......it would be madness to even try!!!!!!......

hehehehheheheeee

best wishes

Lee.

 

[Rizzle from the Portizzle]

Hello Ed...

the point was do it bare bones and "see what happens"...we want to see how they all stick without the use of any additive etc...as in do we even need an additive?......
and I have no idea about how well it would stick because I have never done it......it would be madness to even try!!!!!!......

hehehehheheheeee

best wishes

Lee.

i know how it would react to sbr what i do not know how it would react without sbr this was a side test so we will all know toghter we learn some think one way or another:8:

 

[Protilers]

thats what I said Ray....I might be able to save myself a small fortune in flexi adhesive....all i (might) need is a bag of cement!

heheheheheheheheeee

well we will see........

Best Wishes

Lee

 

[Aston]

i can tell you now to save you waiting for you results.
the porcelain tile that has been fixed in sand and cement without a modified slurry will be the weakest bond because the neat cement and water cannot penetrate the virtually 'non porous' body of the porcelain. ps the quartz tile might be up there too!! for different reasons..

the chemical reaction will take place as it does with hydration, the slurry will absorb into the sand and cement bed no worries and fuse but it wont do the same so well on the porcelain tile and therefore creating a ''weaker bond''...this has been established for years and years in the tile industry. if you fix pocelain tiles in sand and cement, you modify the slurry and insome cases modify the sand and cement.

you can slurry the porcelain tiles in sbr and cement or a suitable porcelain adeshive prior to bedding them..thats how its done.

ps, i am not doing this post to teach ray how to suck eggs, he's an experienced tiler whos probably forgotten more than i know, its just for any new forum member who might think its ok to treat porcelain the same as ceramic thats all ;0)

great thread lee and i know this test was a bit last minute thing so dont think i am pulling holes in it because i am not, i am glad you and ray are on here and i mean that.

 

[Protilers]

Evening.......

just back from work and a little tired.....so I will keep this short and sweet......

there is not a newbie or even a tiler on this forum that would attempt to tile a floor with sand and cement slurry....modified or not......in fact most of this forums members (and all the other forums for that matter) have never been introduced to an irish tumble drier......and that is a fact!....take it to the bank......

this aside......everything you have said I agree with (in principal) due to the fact that adhesive manafactures have been telling us this for years.....and as I have never gone round to mrs smiths house and laid an unmodified slurry and sand and cement screed and then bedded in porcelain tiles........I dont truly know the outcome of what will happen........but i have been "told" it will fail for many years.........
but here is an opertunity to see what "really" happens.........and thats it......nothing more nothing less.........

it is a light hearted test.......no white coat required...... you may even get a minute or two's amusement out of it!

best wishes

Lee.

 

[Aston]

lee
my comments are made from experience mate, not what adhesive companies tell me.

 

[DHTiling]

Yep i agree, amusement when one of the reps misses the tile and clouts his thumb :lol:

 

[Protilers]

lee
my comments are made from experience mate, not what adhesive companies tell me.

hahhahhahahahaaaa....cmon Ed.......so in your "experience" of tiling unmodified slurry sand and cement screeds and fixing porcelain to onto them.......

how many failures did you have before you changed your methods?

 

[Aston]

lee,
do you actually read posts?? where have i advocated NOT modiifying the slurry or bed for porcelain tiles fixed on sand and cement?? i have been saying they should,,

i pointed out that the porcelain tiles were not modified????

anyway, thats it from me on this thread, even if i wanted to add any more, i couldnt ;0)
all the best
ed