Used search w/o results. Radius cuts on 12"X 12" concrete patio stone. Full circle w/o gap. Looking for pic/formula.

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Aquaeye

Aquaeye

Member
Jul 16, 2021
13
Texoma
Pool Size
18
Surface
Vinyl
Chlorine
Liquid Chlorine
As title suggest.
18' by 42" Intex AGP.
Have pad @ each support but like the optics of totally encompassing stone placement w/o gaps. Also, the advantage of retaining the sand & preventing washout.
I saw a pic of a member that incorporated this into a AGP with good results last year but now unable to find pic/formula.
Please help if you can, locate or provide a pic.
 
Aquaeye said:
As title suggest.
18' by 42" Intex AGP.
Have pad @ each support but like the optics of totally encompassing stone placement w/o gaps. Also, the advantage of retaining the sand & preventing washout.
I saw a pic of a member that incorporated this into a AGP with good results last year but now unable to find pic/formula.
Please help if you can, locate or provide a pic.
Click to expand...
Sometimes a blind squirrel will find a nut.
Found it, never mind4D7F22FC-7067-4E7E-83ED-D4AEFAD594C7.jpeg.
 
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If I was to do it, that'd be how. I'd have a fair shot at getting a circle within tolerance of level. 24 individual stones ? Pfffffft. Zero chance.

You want 4 inch thick stones that are paver like instead of stepping stone like. The 2 inch stepping stones are actual 1.5 and are prone to cracking under load. Dig the ring down, minus the thickness of the sand base under the pool. (1 inch ?)
 
If you want the stones to fit perfectly, you can cut off the sides at the correct angle.

For example, if you have 60 stones, each needs to be cut by 6 degrees (360/60 = 6) or 3 degrees per side.

For 57 stones, the angle is 6.31579 degrees or 3.1579 per side.

For 57 stones, the gap would be 1.32”



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As you can see, the stones have a gap unless you cut the sides, but that's a lot of work and not really necessary unless you don't want the gaps.

If the stones are 12” wide and the inside diameter is 16’ and the outside diameter is 18’, then the difference in circumference is 56.5487 feet - 50.2655 feet = 6.2832 feet.

If you have 60 stones, then the gap is 1.257”.

For 57 stones, the gap would be 1.32”

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57 cut stones (12" x 12") will give you an outer circumference of 57 feet with no gaps, an inner circumference of 50.717 feet, an outer diameter of 18.1437 feet and an inner diameter of 16.1437 feet.

If you don’t cut the stones, you will have 51 stones with an inner circumference of 51 feet, an inner diameter of 16.2338 feet, an outer diameter of 18.2338 feet and an outer circumference of 57.283 feet including the gaps, which will be 1.478”.

Note, these are just examples.

You need to do your own calculations based on your own design, engineering and architecture plans.
 
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JamesW said:
If you don't cut the stones, the gap at the outside between the blocks will be 1.324
Click to expand...
Ooof. That brings up a good point. Where do the legs line up on said gaps ? You just KNOW that 3 of them are gonna straddle 2 stones 75/25 and the one without alot of meat below it is going to want to settle or crack.
 
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If you dig into the ground 4” deep and the inner diameter is 16 feet and the outer diameter is 18 feet, the surface area is 53.4 square feet.

At 4” deep, that’s 17.8 cubic feet (0.659 cubic yards) of concrete.

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You can also have concrete delivered, but they probably won't deliver less than a full cubic yard.

The surface is an annulus and the three dimensional object is a toroidal ring.

If you choose to go with this method, you should probably put a ring of copper bond wire in the concrete for bonding purposes.

Note: I do not know about installing above ground pools and you should confirm all plans with a qualified professional before deciding on a final design, engineering and architectural plan.



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Here we go. Suggestions to a common AGP problem in several ways. That's what I like about TFP. One post can result in numerous helpful responses.. Even before the OP has a chance to respond!! Nicely done gentlemen. Your responses to my posts over the years have been instrumental to the success of rigid PVC plumbing my little INTEX and in helping me answer my may pump/filter questions. Keep up the good work....:goodjob:
 
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