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Old 11-14-2013, 07:11 PM
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KrayzKajun KrayzKajun is online now
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Sand/Cement ratio to fill sandbags?

Part of the contract im working on has us providing a sandbag with a sand/cement mixture.

Would it be better for us to mix our own material or we could purchase 80# bags of a sand/cement rip rap mix and repackage in our sandbags.

mixing our own material would require more space and some trial runs to get ratio correct.

anyone have experience with this?
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Old 11-14-2013, 07:19 PM
JNB Construction JNB Construction is offline
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Three sand-to-one cement should work good. Shovels, buckets, or whatever. It's always cheaper to do it yourself. You can buy a lot of sand for pretty cheap, and bags of cement will yield a lot of product compared to the the price of bags. You could mix the material dry in a mixer to speed things up.
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Old 11-14-2013, 07:58 PM
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I would just find a slab or lot you could dump sand and bags onto and mix it with the skid steer. Maybe a paving co could drop some blacktop for you if you prep it. No way premix will be affordable. They will probably provide the ratio they want right?
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Old 11-14-2013, 09:49 PM
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SVA_Concrete SVA_Concrete is offline
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I would call up a concrete supplier with volumetric mix trucks, get a load of sand at your yard (to refill the truck) and have him come down, he can adjust the ratio of cement/sand right on the truck, it mixes in the auger and drops into your sandbag attachment.

This is the type of truck: http://www.zimmermanindustries.com/en/
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Old 11-14-2013, 10:45 PM
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When I worked on bridges we had to have a 50/50 mix of White and standard Portland cement so we mixed the cement on the bridge deck and then mixed the sand in and re-bagged it.

Pour a slab if you need and start mixing when it cures. You'll figure it out quick.

Good luck Jacob.
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Old 11-15-2013, 03:03 PM
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Thanks fellas.
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Old 11-16-2013, 10:15 AM
Impact-Vector Impact-Vector is offline
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Stupid question but what's the objective?

Do they want cement ready to go with just adding water? Or do they want dry bags that will firm up when they get wet? Very different ratios...

I would also be concerned with what they are trying to protect..lots of liability if it doesn't hold up!
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Old 11-16-2013, 10:48 AM
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Temporary flood barriers will be built using the 3k # bulk totes & 50# sandbags. These barriers will be between the section river and section on levee under construction.

During construction if there is a threat of a severe rain event, tropical storm, hurricane etc. the barriers will be covered with 6mil Woven Poly sheeting. The sheeting will be trenched in and weighted down using the sand/cement mix bags.
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