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How many bags of Portland Cement for a CU Yard?

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How many bags of Portland Cement for a CU Yard? alvinamorey 11-06-2007
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Posted by on November 6, 2007, 4:08 pm
How many bags of Portland Cement for a CU Yard?
They are 90lb bags. From what I recall, it was 3 bags per cu yard.
Yet I got this guy at the local lumberyard who insists I need 5 bags
per... Sounds to me he is trying to make more money...

I am referring to a standard mix of 1 part portland, 2 parts sand and
3 parts stone.

It's been awhile since I made cement so I am asking to be sure. I'm
checking into the cost to make my own from scratch rather than truck
in some ready mixed stuff in a tub.

Posted by The Freon Cowboy on November 6, 2007, 4:22 pm
3


alvinamorey@notmail.com wrote:
>How many bags of Portland Cement for a CU Yard?


Posted by Bob F on November 6, 2007, 4:55 pm
I don't think so.


> 3
>
>
> alvinamorey@notmail.com wrote:
>>How many bags of Portland Cement for a CU Yard?
>



Posted by Grandpa on November 6, 2007, 5:21 pm

> I don't think so.
>
>
> > 3
> >
> >
> > alvinamorey@notmail.com wrote:
> >>How many bags of Portland Cement for a CU Yard?
> >

I don't think so either.
It will depend on the size of the aggregate; see:
http://www.cement.org/tech/faq_cement.asp

--
Grandpa
Killing all posts from Google Groups
The Usenet Improvement Project:
http://improve-usenet.org/

Posted by Ralph Mowery on November 6, 2007, 6:38 pm

>
>
> I don't think so either.
> It will depend on the size of the aggregate; see:
> http://www.cement.org/tech/faq_cement.asp
>

Looks like they are saying 7 bags. That should be about right. I mixed up
a yard of the ready mix and it took about 43 bags. The measurment was not
exect but close to a yard. From the above mix , if you say it takes 42 bags
and devide by 6 (number of parts) that gives you seven .

Be sure you want to devote the ammount of time to mix up the cement. It
will take several hours to mix up that much by hand. Unless a big mixer is
used, think of it as about 3 minuits per the bag of premixed that I used.
That times about 40 will give you the time it will take.
It may take longer if done fully by hand. I used a small electric mixer and
only mixed one bag at a time.



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