Cracked floor removal

[ct03911]

I am committed to removing a substantial part of my floor due to cracks.
The original contractor is not going to cooperate so I'm beyond that.

For example sake let's say I want to remove my 24' width floor and go into the garage a good 18' to cut that whole square out.

The rental center has a diamond saw of course but the blade is centered in the tool. I would not be able to get to the floor-wall joint or wall edge, but I'd be making a cut a few inches into the floor.

Anyone know of options without making this a whole lot harder than it will already be?

Just make the cut all on all four sides and start jackhammers get it up?

The only downside I see to the cut being in a few inches from the wall is my lift will have to be another 6+ inches in from that so I'm effectively moving my lift over a little.

 

[gregtwojeeps]

Along with a good concrete saw... like the walk behind machine to assure good straight cuts and to save the back.... you will also need a hand held 14 " diamond tip bladed concrete saw to get the cuts close to the walls. ....

Or if you have a good back and are removing the total floor and no need for straight cuts, you could just use the hand held and make slices in cubed fashions and break it out with a electric jack hammer or if you are a triathlon/muscle bound person... use a 12 lb. sledgehammer and get a GOOD workout. JMO

 

[ct03911]

Local rental joint has the 14" hand held version. It only gets to within a few inches of the wall.
I'm wondering if anyone has seen one that cuts closer or does it really matter.
Maybe that's good enough.
They recommend a 90lb jackhammer that runs on some silly cfm to break up a 5-6" floor. It is a compressor on wheels that you tow to your site.
The saw is $125 a day and the compressor/jackhammer about $150/day.
Then, I'd need a dumpster. On site to throw chunks into.
Probably it would cost me $500 or so and a new back.

 

[LegacyIndustrial]

10-4. Take it out in chunks/sections that you can handle.
A small bobcat would make this much easier.

 

[joes169]

Every gas powered concrete saw I've owned has had a provision to flip the guard to the other side to get withing 1" or so of walls. It's kind of a pain to switch ot over (twice), but it can be done...........

 

[boobag]

concrete breaks suprisingly easy when its lifted a bit, and hit with a sledge hammer.

the easiest way to take out old concrete is to use a bobcat to lift a section while another with a sledge hammer to hit it which will break it apart. then repeat.

or make several cuts, then use a long strong board and leverage a section up at a time, and hit it with a sledge.
concrete breaks suprisingly easy when its lifted a bit.
now if you have steel or rebar, then thats another battle...