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Old 05-16-2010, 03:27 PM   #46
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Can a concrete truck get into my back yard?


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dry cement
It's less dense than 170#/cu. ft. but it is still a lot of weight to be carried. The OP could rent some helpers from "Manpower" or companies like that. It'd be $12/hr per person, maybe, with some minimum charge.


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Old 05-16-2010, 04:04 PM   #47
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Can a concrete truck get into my back yard?


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I don't know how well this would work, but could you just mix the cement on site, in the form? Drop the dry cement in the form, add the water from the garden hose, mix as it's filling up.
At what point is it that someone declares this thread totally derailed and closes it?

A skid steer would be cheaper in the long run.
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Old 05-22-2010, 07:49 AM   #48
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Can a concrete truck get into my back yard?


Finally poured it yesterday morning. I used a buggy and it solved the truck on my driveway issue. A buggy was the way to go and made it go like a breeze. Cost me about $109 for a day and unloading that thing off of a trailer was a little tricky. One set of tires in the rear and two in the front - kind of like a tricycle.

The concrete took a little longer to cure than I expected, which was great because it gave us plenty of time to float it. I expected it to harden up real fast and get away from us like the last one I did.

After I floated it with a bull float it really looked good. I was so impressed at how good it looked I couldn't believe it. We had a threat of rain coming so we stood around for about an hour. I figured surely the surface had cured good enough to not get messed up, so my friend and I started to drag a piece of plastic over it to protect it from the rain. Sure enough, it wasn't cured enough and the plastic marked the surface all up .

So, left with no choice, I pulled out a piece of plywood and took my trowel and smoothed everything back out as best as I could. It looks pretty good, but near as good as it did. I wasn't going to run the bull float back over it because there were some areas that had partially hardened and i knew that would probably be a disaster. I did get the concrete mixed with fiber, and I pust say that troweling that stuff was a pain in the butt.

Anyway, after about another hour, it had cured to the point where we could put the plastic on it. We did it just in time because it started to rain just as we got it covered.



I understand it's also better to cover it to help it cure properly. Can anybody explain this in further detail? I mean How long do I need to keep it covered?

Also, When do I need to attempt to take the form boards off of the sides?
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Old 05-22-2010, 08:00 AM   #49
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Can a concrete truck get into my back yard?


The important curing fact is to not let the concrete dry too quickly. You actually water it with the hose for several days.
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Old 05-22-2010, 08:08 AM   #50
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Can a concrete truck get into my back yard?


Looks good ! generally you should be able to strip it the next day depending on the slump and percent of fly ash in the mix, was it a high early mix or mid range ?

High early will be up to strength in 7 - 28 days. with no water reducing agent you can expect 28- 56 days for full strength

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Old 05-22-2010, 08:12 AM   #51
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Can a concrete truck get into my back yard?


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Looks good ! generally you should be able to strip it the next day depending on the slump and percent of fly ash in the mix, was it a high early mix or mid range ?

I couldn't tell you. They didn't specify. I bet they probably mixed it a little "friendly" because the dispatcher for the truck yard knew it would be just me and a couple of my friends doing it.

The buggy was a 16 cubic foot bucket, and the driver of the truck was nice enough to not fill it so full so that it didn't slosh onto my driveway as i was cruising back and fourth.
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Old 05-22-2010, 08:17 AM   #52
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Can a concrete truck get into my back yard?


JS, if you have any plastic sheeting around, that should suffice for curing. Cover it a few days, or set old blankets on it and soak them down. The key to this is that you need to keep the concrete wet the entire time or you're merely "peeing in the wind."

On eidt, I realize you already have plastic on it, so just leave it if you want. You could still put something over the plastic to block the sun out as well to really extend the cure.

Glad to see you got this poured w/o incedent.

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Old 05-22-2010, 08:34 AM   #53
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Can a concrete truck get into my back yard?


As jomama has stated, the plastic or blankets will be fine, the heat of hydration on a slab of that size will be minimal.
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Old 05-22-2010, 08:40 AM   #54
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Can a concrete truck get into my back yard?


It will be a few months before I build on it anyway. I have to save up the money for the structure itself now. What is the best way to keep it protected until then? My backyard is pretty shady anyway, so it won't get direct sunlight.

If I haven't said it already, thanks for everybody's help. I couldn't have done this thing as well as I did without yall

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Old 05-22-2010, 10:43 AM   #55
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Can a concrete truck get into my back yard?


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The buggy was a 16 cubic foot bucket
The buggy carried 2600#? So it took 5(27)/16 = 8 trips? Was it just you?

I've heard that the concrete is supposed to cure rather than dry and that it may take a month to reach full compressive strength.

Glad it turned out OK.
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Old 05-22-2010, 12:11 PM   #56
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Can a concrete truck get into my back yard?


If you are going to cut control joints in that slab, make sure to get in done by tomorrow. It doesn't do a lot of good if you wait past a couple of days.

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