Portland cement
 

how long does it keep after opening the bag?

TIA

Portland cement
 

George wrote:
how long does it keep after opening the bag?

TIA


That entirely depends on local hunmidity.

I had a bag I got this summer for some odd jobs. Left outside in the old
landrover.

The outside and top had caked, but inside it was still powdery. It set
Ok when I had to put in two half bricks to tidy up some decorative
brickwork.

If you seal it against moisture,. it lasts forever. If it gets rained
on, its a solid lump the next day ;-)

If its still powdery, its OK.

Portland cement
 

"The Natural Philosopher" wrote in message
...
George wrote:
how long does it keep after opening the bag?

TIA


That entirely depends on local hunmidity.

I had a bag I got this summer for some odd jobs. Left outside in the old
landrover.

The outside and top had caked, but inside it was still powdery. It set
Ok when I had to put in two half bricks to tidy up some decorative
brickwork.

If you seal it against moisture,. it lasts forever. If it gets rained
on, its a solid lump the next day ;-)

If its still powdery, its OK.





Hah! yes sorry forgot to mention the bag has been kept inside with a
relatively good warmish condition.

Just checked, it has gone a bit hard on top.

Portland cement
 

On Dec 17, 12:43 pm, "George" wrote:
"The Natural Philosopher" wrote in . net...





George wrote:
how long does it keep after opening the bag?

TIA

That entirely depends on local hunmidity.

I had a bag I got this summer for some odd jobs. Left outside in the old
landrover.

The outside and top had caked, but inside it was still powdery. It set
Ok when I had to put in two half bricks to tidy up some decorative
brickwork.

If you seal it against moisture,. it lasts forever. If it gets rained
on, its a solid lump the next day ;-)

If its still powdery, its OK.

Hah! yes sorry forgot to mention the bag has been kept inside with a
relatively good warmish condition.

Just checked, it has gone a bit hard on top.- Hide quoted text -


From my experience if it's still powdery (like new cement) then it
works fine. ..but I maybe wouldnt' use it on something critical if
it's a mix of powder and clumps.

Portland cement
 

From my experience if it's still powdery (like new cement) then it
works fine. ..but I maybe wouldnt' use it on something critical if
it's a mix of powder and clumps.

But powder and clumps is fine for rough concrete, especially if you have a
mixer and mill it a bit with dry aggregate

Portland cement
 

"George" wrote in message
.uk...
how long does it keep after opening the bag?

Always a bit less than the time to your next job.

Colin Bignell