firestorm

Close. The numbers are right, but he got 5 'Cows' , not pigs . I am deducting 5 points for the mistake. Next time, read the question.
Math has always been my strong point.

jfpointer

Yeah, I got that far. But then I gave up and came up with a better answer.

richard

If you figure compaction numbers into it, let's say about 1.2 inches.
2826 s.f. x .1= 282.6 s.f divided by 27 = another 10.5 yards
you were close on your guesstimate at 65.
This project is getting expensive now.

Chrisreyn

My question just got better.. the excavator deals in "tons" not cubic yards....

so how many tons is 65 cubic yards? I'd guess the weight to be around 5 lbs a square foot........

65cubic ydsX 3= cubic feet right? then times 5lbs, then the result divided into 2000?
When i said I stink at math, i realy meant it.....

jfpointer

I always have to stop and think when I get ready to deal with cubic whatevers: Cubes are three-dimensional. So a cubic foot is a cube 1x1x1 feet, cubic yard is a cube 3x3x3 feet, so a cubic yard = 27 cubic feet. 65 cubic yards x 27 = 1755 cubic feet. 5 lbs/cubic foot x 1755 cubic feet = 8775 lbs / 2000 = ~4 1/2 tons.

c172driver

Prolly have to talk to HOSS on that one. He's the concrete pad expert

12valve@heart

Chrisreyn,
5lbs per cubic foot may be a bit light. I looked around on the 'net a bit and as per http://www.diydata.com/materials/cement/cement.htm , Sand -> 1 cubic yard = 25 cwt.

I take that to mean 2500lbs per 27 cubic feet, that comes out to 92.59lbs per cubic foot or 92.5 lbs for a cube of sand that measures 1'x1'x1'. You probably need to ask your sand supplier what figure they use since it will vary a lot depending on how wet the sand is but based on the 92.5lbs per cubic foot or 2500lbs per cubic yard, your 65 cubic yards is now 65 * 2500lbs per yard = 162500lbs/2000lbs per ton = 81.25 tons. I hope that you don't have to level all of it by hand.

I'm sure that someone else will recheck my math and let us know if I overlooked something.

Beamwalker

so how deep would concrete be in full size bed in 92 to give me 738 extra pounds of weight for traction?

hotdram

Portland or fibered

~Rob

IA_James

I just never liked math. And I've got this streak in me where if I don't like it, it doesn't get much effort out of me. And since I would vastly rather read a book, run a lathe, work on a car, weld something, move the teacher's car between 2 dumpsters, than do math, it just didn't get much effort from me.

Chrisreyn

Naw I got a blade on teh tractor for that.......Thanks for the info guys....


spenttomuchtimeindetentionandnotenoughtdoinghomewo rk.........CD

Begle1

So if you are filling up a 30 foot tall, 5 foot radius grain silo at a rate of 5 bushels per minute, then how fast is the grain level increasing when there are 300 bushels in the silo?

(That's an easy one...)

firestorm

Simple, 5 bushels per minute.

Begle1

The grain level, in feet per minute.

In other words, if Hoss stuck my feet in the concrete at the bottom of the silo, and I'm standing in the middle of the silo watching grain pour into it, how fast will the grain level be raising from my point of view.

It is a watered down Calculus question, but you could answer it using geometry and algebra.

A real "Calculus" Calculus question would ask how fast the grain level was raising in a cone-shaped silo...

jthorpe

I'm not sure how a math thread can lead to a post being removed, but nontheless, it has happened. Please keep your posts clean folks, and re-check the rules every now and then so you don't forget

Thank you for your time. Carry on...