Anchor Pots

I installed two in a new addition floor for my existing shop.

My "pots" are 12 feet apart, so I placed a 14' section of 2" x 2" angle iron on the ground from pot to pot before the rebar was installed. I then cut 2 12" long sections of 6" black PVC (DWV) and notched them so they would set on top of the angle iron vertically. I then dropped a 2' piece of large log chain down thru the DWV, wrapped it around the angle iron, and bolted the chain together above the angle iron.

Stuff the bottom of the pipes with newspaper to keep the concrete from coming up into the pipe and drop the chains back in. Stuff more newspaper on top.

Before the pour and while the transit was set up, I cut off the DWV 1/4" below the finished floor height and fabricated two 8" square steel 1/4" thick plates and duct taped them to the top of the DWV. Spray the bottom of the plates with PAM before you mount them to keep the concrete from sticking.

Do your pour, and trowel the concrete so it is level with the top of the plates. After the concrete has set up a bit, remove the plates and clean up the area where the plates sit so there aren�t any raised edges and everything is flush.

After all was said and done, I drilled a 2" hole in the center of each plate so I could stick my finger in and remove the plates. Pull out the chain to winch, pull etc. whatever is needed, and drop the chain back in and replace the plates when not in use. With the plates in, I have no problem rolling over them with a cart, creeper etc. and they keep crap from filling in the chain pot.

Sorry for the long reply, but it worked well for me.

Scott

The reason for the 2"x2"x14' angle was to give a good solid base for the chain to wrap around. If the DWV is notched tightly around the angle, the concrete won't flow around the chain and you can still reach in the hole to change the chain if need be.

The DWV is surrounded by concrete, so I'm not to worried about chipping it. The top plate covers up the DWV and an additional 2" when not in use, so everything looks nice and tidy.

My pour only dropped about 1/8", so I flush cut the DWV after everything was good and set. The pipe and the recess where the plate fits dropped with the rest of the floor, so the plates fit no matter what the elevation of the concrete is as long as you trim the DWV.Leave the plate in while the concrete sets up, and the plate ledge will keep its same dimension (+-).

I'd rather trim plastic pipe than try to grind concrete!

Scott