Concrete Ballast box

[nato674]

Hi everyone. Wondering if anyone knows how to calculate the measurements to make a box of concrete to around the 700lb mark?

Nathan

 

[s219]

These are approximate numbers based on typical sack mix:

Concrete dry mix density is about 162-164 lb/cu.ft (not counting air).

Cured density is about 145 lb/cu.ft

For 700# of cured concrete, you will need about 4.8 cu.ft of volume.

 

[xrjohndeere]

Hi everyone. Wondering if anyone knows how to calculate the measurements to make a box of concrete to around the 700lb mark?

Nathan

2 foot x 2 foot x 14 inches will get you 700 lbs. Do a quick net search for concrete slab weight and you will be able to find a calculator to plug your dimensions into to come up with the weight you need.
Length(feet)x width(feet)x thickness(inches)/12x 150= weight in pounds. Approx 150 lbs per cubic foot. Hope this helps.

 

[WranglerX]

Numbers I used was 150 pounds per cubic foot, so my 2x2x1 steel box is 4 cubic ft and should be right at 600 lbs...

Handy Concrete Weight Calculator | Dumpsters.com



Spray can caps cover 2 inch ABS pipes for tool holders...


Dale

 

[nato674]

Thanks for the reply guys.

 

[CalG]

Be mindful of too much weight out back.

I put on the "big ballast" out back (650#), and broke the front axle casting while digging stumps using curl on the loader.

With a lesser rear weight, the rear end lifted before the "CRACK".

Oh well, a $thousand here, a $thousand there. Live and learn.

 

[SmallChange]

I put on the "big ballast" out back (650#), and broke the front axle casting while digging stumps using curl on the loader.

Ow! ow! ow!

I put an 800# ballast on back, and wouldn't have hesitated to curl the loader working on a stump (though I haven't happened to do it yet). I don't want that to happen to my machine -- what tractor did this happen to, if I can ask?

 

[newbury]

Be mindful of too much weight out back.

I put on the "big ballast" out back (650#), and broke the front axle casting while digging stumps using curl on the loader.

With a lesser rear weight, the rear end lifted before the "CRACK".

Oh well, a $thousand here, a $thousand there. Live and learn.

On what? A Kubota B7200?

Ow! ow! ow!

I put an 800# ballast on back, and wouldn't have hesitated to curl the loader working on a stump (though I haven't happened to do it yet). I don't want that to happen to my machine -- what tractor did this happen to, if I can ask?

Again - on what?

My preferred ballast for my B7810 is a 850 lb backhoe.

 

[CalG]

Hurlimann 435

 

[CoyPatton]

Hi everyone. Wondering if anyone knows how to calculate the measurements to make a box of concrete to around the 700lb mark?

Nathan

There are differing weight ratings for concrete. A generally accepted weight is around 150lbs per cubic foot of dry concrete.
To achieve your 700lbs desired weight, you need approximately 4 2/3 cubic ft. This weight factor will be influenced by the amount of steel you add to the mix. The 4 2/3 cu ft is raw concrete weight.

The size of your frame is conditional upon how you want the box to sit on the back of your tractor.
Do you want it to set as much as possible inside your lower arms? Or the opposite, as much as possible behind your lower arms? Do you want tubes within the ballast to hold tools (shovels, rakes, chains, chainsaw, whatever)?