Ballast Rear weight ballast

   / Rear weight ballast #21  
Standard 55 gallon drum dimensions are I.D. 23.375" by 36"
The radius of that is 11.68. Radius squared is 136.42
3.1417 x 136.42" x 36" (depth) is 15429.26"

Divide that by 1728(Cubic inches in a cubic foot) and you get
8.92 cubic feet

At 145lbs per cubic foot, that yields 1293lbs
 
   / Rear weight ballast #22  
It can't be any heavier than the original dry mix plus the water. The amount of added water is not that much (maybe 4 lbs) and a lot of it is not consumed in the reaction and just drys out, so its close enough (for this purpose) to just use the original mix weight.

10x 80-lb bags would be about 800 lbs.

Don't forget to add the weight of the container, hardware, and rebar.

- Rick
 
   / Rear weight ballast #23  
So what does everyone use for hardware to mate with the TPH? Specifically the lower bar.

Thanks
Jim
 
   / Rear weight ballast #25  
I actually used a 3pt drawbar, bolted to the bottom of my weight tub via threaded studs i left protruding a few inches from the bottom of the tub.

If I ever ditch the tub, i just pull 2 nuts and washers off and reclaim my drawbar..

Soundguy
 

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