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Thread: concrete ?

  1. 06-05-2012, 09:47 PM #1
    resevoirdog
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    Default concrete ?


    I am going to make a few pvc structures with some 6 inch pipe I have. The pipe does not fit well in a 5 gallon bucket because of width. So I figure I would use a big rubbermade container as a form. How much concrete do I need to use? Is 16 inches enough to hold up 5 pcs of 6 in pipe that are 8 ft long.
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  2. 06-06-2012, 02:48 AM #2
    jcd
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    Hi Resvoirdog,


    Really depends on how thin or thick you mix the concrete...Will determine how much concrete you need.....You can pop the concrete right out of the dishpans....I would drill a screw or two in the bottom of the pvc...So, it will give something for the concrete to grip...So, your pvc won't slide right out...

    Hope this helped you out...

    Jeremy
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  3. 06-06-2012, 09:51 AM #3
    resevoirdog
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    Thanks. My main concern is using enough concrete to hold it together. But I'm afraid of making it so heavy I won't be able to lift it into boat.
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  4. 06-06-2012, 10:59 AM #4
    Harold
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    I would use about half of a bag.
    THE Nimrod Kid
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  5. 06-06-2012, 11:51 AM #5
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    I think you are going to need more than half a bag if you plan on using 5 pcs of 6" pipe. Depend on how far apart you are putting the pipes, need enough room in between for a good thickness of concrete and then you need it deep enough to hold together. I am guessing at least 60-80# as you have described.
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  6. 06-06-2012, 12:32 PM #6
    INTIMIDATOR
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    I use a 40lb bag per each 15 qt Rectangular Rubber Maid tub I use. The Rectangular tub does not require stabilization when dropped properly! I also put screws or nails in the bottom of the PVC and Wood...also sand PVC with 60 grit.

    In a 15 qt I normally put a 4" PVC middle pole (5-6 foot tall) and (6) 2" pvc poles around it (5-6 foot tall)...or a 4" middle PVC pole (5-6' tall) and (4) 2x4's and a couple 2x2's, the same height. The 4" middle pole has 1.5" hole-saw holes alternately drilled every foot for minnows or fry!
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  7. 06-06-2012, 05:17 PM #7
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    About half sounds right, just enough to settle and sink


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  8. 06-06-2012, 06:52 PM #8
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    You don't have to put any screws or nails through the PVC to get the concrete to hold. Just rough the pipe up with 60 grit sand paper and push down into the concrete and leave it to dry for a few days. Once dry you will not pull the PVC out of the concrete. Don't get too anxious about getting the concrete out of the forms it needs to set for a few days. The moisture has nowhere to go since it's in a plastic tub so it needs longer to cure. You probably don't have to, but coating the plastic tub with non-stick cooking spray before adding the concrete works as a great release agent.
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  9. 06-06-2012, 07:28 PM #9
    resevoirdog
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    Thanks everyone!
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  10. 06-07-2012, 11:53 AM #10
    INTIMIDATOR
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    It's according to what you use as your base that will determine if you need screws or nails to hold the PVC in....I sand all of my PVC with 60 grit before I do anything else! I use a 15qt retangular base on everything for stability...the dimensions are 16"Lx13"Wx6"H....even with sanding and proper curing, the PVC WILL pull free and the wood WILL work it's way out....before, or especially in water!
    Now, if you use a 5 gallon bucket and 80lbs of 'crete, then the likelihood of the PVC coming out will be slim!
    To be able to legally do Cover "Projects" in Ohio we have to have the Blessing of the ODNR, COE, And Park Management and prove that nothing will break free and cause harm to boats or the Dam!
    A cheap screw or nail even if not needed, is just an added precaution!


    Quote Originally Posted by Slab Junkie View Post
    You don't have to put any screws or nails through the PVC to get the concrete to hold. Just rough the pipe up with 60 grit sand paper and push down into the concrete and leave it to dry for a few days. Once dry you will not pull the PVC out of the concrete. Don't get too anxious about getting the concrete out of the forms it needs to set for a few days. The moisture has nowhere to go since it's in a plastic tub so it needs longer to cure. You probably don't have to, but coating the plastic tub with non-stick cooking spray before adding the concrete works as a great release agent.
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