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Old 10-17-2010, 10:43 PM   #1
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Filling in trench


How many 80# bags of concrete do I need to fill in 4 3/4 yards

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Old 10-18-2010, 03:04 AM   #2
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don't the bags have a volume on them? i believe CEMENT bags are one cubic foot, and the concrete may be the same. look on the bag, then calc it.

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Old 10-18-2010, 03:09 AM   #3
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A lot!!!

Might be worth calling a ready mix plant.
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Old 10-18-2010, 03:30 AM   #4
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A lot!!!
True. At 27 cubic feet/cubic yard, and approx 1 cu foot/bag, you'll be getting in a workout mixing and dumping. That may be fun, or it may be tedious.
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Old 10-18-2010, 06:50 PM   #5
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60# bag = 2sf at 4" OR .666cf,,, that's over 40b for a cy,,, 4 3/4cy - 192+ bags - using some simple math, you can estimate the amt required here - http://www.quikrete.com/calculator/main.asp - no fudge for unven grade, spillage, or bowing forms - ONLY geometric volume,,, that works out to 1 hellacious job to me,,, mix almost 5cy of conc by hand ???????????????? not even in my youth
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Old 10-18-2010, 07:32 PM   #6
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I recently mixed less than 1 cubic yard of concrete in a wheelbarrow using sand, gravel, cement and water. VERY HARD WORK. And this was over three days, only did two or three posts per day. Believe me, I did not look forward to the mixing. Even with a concrete mixer, this was going to be one hell of a job, not likely to be repeated any time soon.

For your quantity, transit mix is the only way to go. Unless you can get the local high school football linebacker to mix.
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Old 10-18-2010, 07:39 PM   #7
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however, dan will agree it is honest work only 1 linebacker ?,,, think i'd want the whole defense + the offensive line but i'm older than he
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Old 10-18-2010, 07:50 PM   #8
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Personally I enjoy mixing sacks.

Shovel work is about the only time I can just work and turn the brain off. Itís almost like a break.

Iím only good for 1 pallet though. 5-6 is not going to happen.

Hire the whole team.
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Old 10-18-2010, 10:53 PM   #9
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200 bags at about $4.00 per bag = Ready mix is much cheaper & simpler.
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Old 10-19-2010, 07:58 AM   #10
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Imagine the number of cold joints in that job.
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Old 10-19-2010, 01:23 PM   #11
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wow I just did 6 bags not too long ago. Joint compound buckets, and drill-mixer. This won't be easy. But get enough people, you can make a production line. One person to add the mix, one to add water, couple of mixers, can't be too hard. Well at least as long as you can get the mix delivered right to the site, and not have to carry all that. And I agree, this is when my brain goes to limp mode as well.

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