Does It Go Off ?

[derekpara]

In my garage i've got an opened, but little used, bag of cement covered in a plastic bag which I bought about two years ago. (The cement, not the bag!).

Does cement kept like this 'go off' or would it still be ok to use ?

Cheers.
D

[davebro]

If the bag is sealed (airtight) I don't think it will go off. If open to the atmosphere it will. Give it a kick - if you break your toe it's probably gone off!

[The Builder]

Similar to Dave... I give it the prod test. If it's still powder, then it's probably Ok.
It's sold in both plastic and the old paper bags. More likely to last if it's the plastic.

Now for the science bit: it's "hygroscopic" which means it attracts water from the atmosphere. So it needs to be airtight.

[fbg40]

Just love Dave's answer - brilliant !!
FBG40

[derekpara]

Thank you all for your answers. Can't stop - just hopping off to A&E !

Cheers. D

[Zacs-Master]

LOL.

[weecalf]

Probably gone off now .Would not use it for building . maybe for a bitty paving or summit like that .

[johnk]

LOL