08-08-2011, 11:12 AM
(This post was last modified: 08-08-2011, 11:31 AM by eaadams.)
Does anyone know how to properly patch a cold expansion joint with a metal rod in it to receive a high moisture vinyl floor moisture system? I'm afraid the active joint will push up any patching compound I put in there.
Edit: I can't honor it all the way through the floor as it will be a game court and kids will be playing over it. (aka would be a tripping hazard)
Hmmmm. Thanks for the visual! What's with the meandering? That's what I meant when I said you may need a slip sheet or cut the joint a bit straighter. If you put that wavy thing in the floor the owner will freak!
Owner's rep walks into meeting. She is a tilt up concrete engineer in silicon valley. SWEET. They all came to sences.
Now the rH..... See how dark that slab is. Testing came in from low 80's to 99%. I think the pH is like 12. UGH. So annoying.
For some reason with this one tester every time I get some super high test results. He uses putty to seal the wagner 'cap' to the sleeve / concrete. Might that throw results off?
The Wagner reads at the bottom of the hole. The sealing fins on the side of the barrel assure it is just reading from the bottom of the hole. Sealing the cap to the top of the barrel should have no impact on the sealed sensor.
Maybe your readings are always high because he drills straight through the cement into the ground below!
One thing I have always admired about testing with Wagner probes is they are so consistent. If you are reading between 80 and 90 I would look for an answer to that discrepancy.... Is the slab of uniform thickness and are the holes at uniform depth?
Holes are uniform. Slab is 4" from where they have seen. It is a remodel tilt up. (as are most projects in south sf bay area)
I'll have his report tomorrow. $170+ per probe but he does a lot of follow up consulting.
Slab had VCT and conductive tile on it for years. I suspect cutback adhesive. Did cutback ever NOT have asbestos?
Me thinks the newer cutbac adhesives do not have asbestos. Why would they? How old was that last flooring installed
Lost the job. RH came in at 99% and customer decided to go elsewhere instead of doing it right. We refused to do it wrong.