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Use opened mortar? upand_at_them 08-12-2006
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Posted by on August 12, 2006, 9:27 am
I've had an opened bag of mortar in my garage for about a month. I did
a small repair back then and only used a few scoops of it. I have a
rag covering the opening and the mortar is still powdery. Can I still
use it, or should I throw it away?

Mike


Posted by Italian on August 12, 2006, 9:38 am
Mortar or Cement or Concrete? These terms really are missused very
often but I will assume that it is indeed mortar (as in laying bricks,
block) a premixed sand cement and lime/fireclay. Generally bagged
products will harden from just humidity but if it is still powdery im
sure it is fine. As a precaution (to avoid hardend parts in your mix)
as you take the mix out of the bag either pass it over a screen or just
run your hands thorugh it (gloved) to check for lumps....
upand_at_t...@yahoo.com wrote:
> I've had an opened bag of mortar in my garage for about a month. I did
> a small repair back then and only used a few scoops of it. I have a
> rag covering the opening and the mortar is still powdery. Can I still
> use it, or should I throw it away?
>
> Mike


Posted by on August 12, 2006, 9:41 am
Okay, thanks.

There aren't any lumps, but I wasn't sure if the individual grains were
affected by humidity and would prevent a mixture from setting up.

Mike


Posted by John on August 12, 2006, 1:10 pm
upand_at_them@yahoo.com wrote:

>I've had an opened bag of mortar in my garage for about a month. I did
>a small repair back then and only used a few scoops of it. I have a
>rag covering the opening and the mortar is still powdery. Can I still
>use it, or should I throw it away?
>
>Mike

It's OK if it's powdery.

Posted by bill allemann on August 12, 2006, 7:45 pm
the for sure way to find out is mix up a small amount and see if it hardens
OK.
After mixing the mud, put it on something nonporous so it doesn't get dried
too quickly.
If the mix was bad, the next day you'll be able to smash the lump quite
easily with a moderate squeeze of your fingers.
bill

> I've had an opened bag of mortar in my garage for about a month. I did
> a small repair back then and only used a few scoops of it. I have a
> rag covering the opening and the mortar is still powdery. Can I still
> use it, or should I throw it away?
>
> Mike
>



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