Pool Demolition - Contractor Talk - Professional Construction and Remodeling Forum

tgeb · 04-27-2009, 08:35 PM

I am bidding a pool demo, well bidding it again.

My first proposal was to demo the walls to about 2 feet below grade, bust up the bottom, fill it with the demo debris, cover with geo fabric and compact soil over the area.

This is how we usually demo in ground pools here.

On this one the owner wants to completly remove the entire pool and all debris. I am having trouble figuring the cubic yards of debris that will come from this pool.

The pool is 20' X 42' with a depth of 8' to minimum depth of about 3.5 feet. It appears to be a typical gunite construction.

How much material would have been used to construct a pool like this?

How many yards of gunite would I be looking at? Any other advice or tips on getting rid of this thing?

stampcrete · 04-28-2009, 08:03 PM

Maybe try finding out how thick it is and approx sq ft and use a concrete volume estimator that most producers have on there website. It may be way off or it may give you a idea about how much material you have. Now for the steel that will be attached to all of the concrete chunks, find out if you can dispose of them together. Good luck

tgeb · 04-28-2009, 08:22 PM

Thanks, Stampcrete.

That's just it, I can't go drill holes in it or do any exploration work to figure the thickness.

I can't even remove the cover enough to get a real good look at it.

My customer has a contract to purchase this home and wants the pool gone, but is not the owner yet.

I just thought the guys who build pools would know in pretty short order how many yards of gunite this type of pool would typically need.

I could then make some calculations on what the volume of debris would be, disposal is will be the biggest cost on this project.

I can include the rebar with the debris, but might be able to bust the steel out and keep it strictly rubble, a hammer on an excavator does a nice job of freeing the rebar.

Poolman · 05-01-2009, 08:51 PM

Hi Tom,

Figure 45-50 yards of gunite. Depends on how they shot it. Here in Conn. most contractors shoot a minimum of 6" for the floor, 8" for the wall up to about 12-18" from the top of the wall. At this point the bond bean around the top is 10-12" thick to accomodate more and larger rebar to withstand the frost we get in winter.

We typically shoot our walls full thickness to the floor.

Down were you are do you get heavy frost? in climates without frost the pool can be built much lighter and less expensively.

tgeb · 05-02-2009, 10:37 AM

Thanks Poolman

That's just the type information I needed.

They do similar construction for frost protection here, probably just not as deep.