When do you guys use a dedicated layout guy? The layout should not be for the entire duration of the job so he/she would then be working or supervising at some point?
We can’t put pvc in slab within the footprint of building. Always a spec thing!
Must be a regional thing, they spec rigid? Some don’t want anything in the slab other than the service due frequent saw cutting for things such as theft prevention devices.
RGS and EMT. They often ask to X-ray the concrete prior to trenching/cutting of slab.
That doesn’t always work! I had a Lowes that was built on a landfill, the compaction was apparently not done very well, and they were having hollow pockets under the slab inside the store. They brought in a big drill coring through the slab at different places. They supposedly x ray everywhere they were coring, but cored through a fire pump feed about 24” down directly off the utility side of the gear! The manager said the operators shut off the machine and walked away. Had to replace the entire gear. I was able to repair the conduit and repull the feed. Big track machine like you see when they core for roadways.
Depends on the job. For a big deck job like our current 60 story building the layout man will spend a year or so working with the deck crew doing layout. In between he may do other tasks depending on the schedule and progression of the job. On other jobs the layout guy may be a sub-foreman too.
We did a LEEDS job and they specified rigid because it can be recycled and PVC can't...at least that is what the engineers told us when we submitted a value engineering cost for using PVC.
Is HDPE considered recyclable? I'm curious if on LEED buildings if it would be allowed.
I am very curious how rigid in a slab can be recycled.
Is it worth the effort, or it it just required anyway as part of disposing of the concrete?
You should take it off, as close to how you will run it as possible. Then you should estimate it with accurate pricing and labor cost. Then you should bid it to make money and trying to be as high as you can be while still getting the job. Part of my point is, you estimate a job, then you bid it base on the results of the estimate along with many other factors.
I am very curious how rigid in a slab can be recycled.
