Concrete saw permits?

[ItsHot]

Any areas that you know that require "concrete slab saw premits"? Similiar to maybe a burn permit for hot work required for plumbers, welders etc. Seems that this would be a good requirement to prevent damage to inground raceways and conductors.

[brian john]

To heck with feeders, structural integrity, I can fix a feeder, damage the structure and the cost would break most contractors.

[tyha]

To heck with feeders, structural integrity, I can fix a feeder, damage the structure and the cost would break most contractors.

the last company i worked for before i started on my own had an office in texas and the story was that on an airport expansion the foreman needed 2 cores in the parking deck. he called to have them x-rayed and they came and marked what to drill which he had to move the holes over but one of his field foreman misread what was written on the slab and drilled right through a post tension wire on the 4th floor of this parking deck. I dont know exactly what they had to do to fix it but we had to switch insurance companies because it run the other one out of business.

[LarryFine]

. . . one of his field foreman . . . drilled right through a post tension wire . . . Don't ask me how I know, but those cables make quite a noise when they're cut. :roll: You can hear it throughout the building.

[ItsHot]

Don't ask me how I know, but those cables make quite a noise when they're cut. :roll: You can hear it throughout the building. How do you know?:grin: :D

[mdshunk]

Anybody that's doing coring or sawing inside an existing building without getting it x-rayed is potentially getting exactly what they asked for. In my area, the people you call to x-ray also sawcut and core drill, so it's a one stop shop for me. I normally just sub out the whole shebang.

[ItsHot]

Marc is the x-ray thing becoming more common? I have yet to see this done. I saw masonry walls being x-rayed once. The reason I ask is that you hear more and more about damage from cutting to electrical systems. A friend of mine that owns a cutting business told me way back years ago they were cutting a slab and the saw hit a 480v line! The guy running the saw had his knee cap blown out!!:confused:

[mdshunk]

Marc is the x-ray thing becoming more common?Man, I have no idea. I know that pretty much every coring and sawing specialist sub I've ever seen on a jobsite when I was coming up x-rayed. The x-ray used to be a sub of its own, but now the coring/sawing subs seem to have their own x-ray stuff. You see the x-ray requirement in specs a lot.

[macmikeman]

Im' like Marc, I sub out all core's now. I own a coring drill and all the bits up to 6" but I haven't used it at all in years. Seems like our local concrete coring and sawcutting companies can do the work for cheaper than I would wan't to anyway, so its a no brainer to use them.

[mdshunk]

I was just trying to read a little about this topic, and I noticed that the Concrete Sawing and Drilling Association has a free magazine called "Openings". I think I'll subscribe.

http://www.csda.org/displaycommon.cfm?an=2

[ItsHot]

I was just trying to read a little about this topic, and I noticed that the Concrete Sawing and Drilling Association has a free magazine called "Openings". I think I'll subscribe.

http://www.csda.org/displaycommon.cfm?an=2
Sounds like a good idea!:)