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kevsprojects 08-06-2011 07:22 AM

Concrete Mixing
Hope this the right area to post ~

For relatively small jobs I can see the premix with rented concrete mixer setup etc. But, say I wanted to pour a foundation for a 10x10 shed or the like. I figure roughly 50 80~Lb bags or concrete @ .6 cu ft / bag. The largest mixers I see online are around 6 cu ft. I would opt for renting I'm sure. Doesn't this have to be one continuous pour? Wouldn't you have to pour, rinse & clean mixer, fill & mix concrete, repeat etc. Seems like a lot of "in between" time during pours. Seems like you'd need 2 or more mixers operating simultaneously. I've only done basic patch work mixing by hand/stick in a 5 gallon bucket but would like to expand my concrete skills & abilities to do bigger more meaningful projects.

biggles 08-06-2011 07:48 AM

ever consider doing it in sections moving the form and or even mixing it up within the form with 2x6s instead of 2x4s.saw a house show where they have a rolling cement truck that gives out amounts asked for instead of the entire cement mixer being just for your job...

kevsprojects 08-06-2011 08:15 AM

I've heard of the pour on the fly or on the roll concept. I'll check on that. Mixing it in the forms sound like a neat idea. I'll try to find any videos on that!

Daniel Holzman 08-06-2011 08:23 AM

A 10 ft x 10 ft foundation 6 inches thick is about 2 yards of concrete, which gets you into the zone where buying readimix could make sense. Each yard of concrete weights about 4,000 lbs - 5,000 lbs, so if you have a heavy duty truck, you may be able to buy trailer mix concrete and transport it yourself (see

That is a lot of concrete to hand mix, not saying you can't do it, but you do have issues of timing and setting of the concrete, especially if it is hot.

joed 08-06-2011 08:41 AM

Pour and mix the next batch. No washing rinsing in between. It's only concrete in the mixer from the last load.

kevsprojects 08-06-2011 08:51 AM

Now that's a neat idea! I might need a more robust truck though. Actually, I don't see how I could do it with a "simple" mixer because of the timing issue mentioned before. Seems like a one shot single pour is the only way!

biggles 08-06-2011 09:06 AM

YOU TUBE has a ton of videos...try this one out on doing the bags of cement without a delivery....:thumbsup:

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