Concrete slump

[RichS]

 

Does anyone who has had a passive slab poured know what slump range their concrete was in.

 

I would guess within S2 - S3 but would appreciate a more specific answer.

 

[RichS]

Really !!!!

No one ????????????????????????

 

 

[Jeremy Harris]

Sorry, haven't a clue, as it was all specced, signed off and installed by the same company, and there's nothing on any of the paperwork I have that gives that level of detail about the concrete spec.  I'm not sure there are many who've done a DIY passive slab, which may well be why you're not getting answers.

[lizzie]

Sorry I don 't even understand what S2 or S3 is. Our slab was part of our frame package.

[ToughButterCup]

I just can't remember. Sorry to be so unhelpful.

[lizzie]

I have just checked our engineering details for the slab and nowhere is there mention of S2 or 3 or S anything sorry.

[RichS]

Ok, thanks for all the replies regardless

[Gone West]

8 hours ago, RichS said:

@RichS I've just gone through our SE spec. for our raft and the only mention about the concrete is RC35. Sorry.

 

 

 

[mvincentd]

same as others.....structural eng' does not indicate anything for concrete spec beyond rc32/40.

[Miek]

I suspect the slump is not relevant for small house slab type jobs, mainly because of the extra cost / hassle of measuring it.  For large commercial concrete pours where things have liabilities then that's another matter.   

 

Most folk know that a stiff mix is strong and adding too much water can weaken the mix.. 

[RichS]

Okay, and once again thanks to you all for your replies