Though not typical, (except for high end commerciale installs as needed per contract), I'm thinking a core sample needs to be taken of the slab and have a petrographic examination done to determine the condition of the concrete.
this analysis will discover if is any issues with this install is due to poor concrete chemistry.
That will NOT happen. I'm already to the point of stripping it, and getting my bud to polish it down. There's no point in breaking out core samples.
other questions:
a. How old was the concrete from the day of 1st coat? 109 days from when I paid the concrete guy to placed the order to AG
b. did you do a vapor barrier test for hydrostatic pressure? NO, the concrete was beyond dry, and the shop was at a relatively lower humidity than outside air so I assumed it was dry. No coloration or signs of moisture.
c. anything else you noticed about the concrete when it was poured.. temps, did they cover concrete, how did they finish or did they add more water,agents to concrete? did they runs short of concrete or was there a laps between trucks? etc. etc.
One continuous pour, vapor barrier underneath, they poured so late that they wanted to start the power screeder at 1 am. Since they had destroyed mine and my neighbors yard with a bobcat, I wasn't about to make my neighbors more mad. They had to hand smooth it, which sucked of course. No water was added or agents. I was present throughout the pour.
Prep questions:
a. as your grinded the floor with edco.. did you inspect for any other issues after wards? such as? I saw no cracks or coloration that would suggest a problem. It was a continous surface with a good texture, not rough, but not smooth
b. You rinsed with water and let dry.. what is your water hardness level and did you just leave to air dry or did you squeegee and put a fan on it?
As for the level, I have no clue. But we don't have hard water here. It was 94 degrees. By the time I had finished, one side was already drying. The places where water slightly collected a fan was used. And it was a high pressure rinse.
c. I read that you prepped a few weeks before laying down product.. did you blow out and/or do a final rinse to get all particulates off the floor before applying the base coat or did you just start laying down the epoxy?
Nope. I did a quick final rinse about a week before. But I blasted it with my backpack leaf blower. The day of. Nothing had been inside except me with barefeet since water washing.
let talk mixing/installing.. 1200 square ft.. that's a pretty big floor for a DIYer..
so did you mix all the product at one time and let sweat in or did you do the floor in batches? did you mix for the proper time and mix in separate container?
No I did it in sections. As you can see I left the expansion cuts in. This gave me a perfect 100 sq/ft measurement. I measured each batch in fresh buckets. I mixed for a minimum of 4 minutes (stopwatch) with a variable speed drill.
if mixed in batches.. are those bad areas possibly in different batched application areas? how did you stage and time your mixing?
Yes different batches. Time my mixing? As stated before, or I misunderstood your question on this one
application:
how many people on the crew? 2
I noticed that there were no cut in by the bottom plates. wondering why?
Are you referring to the edging/trim? If so, there will be framing and drywall going in, and the edco grinder couldn't get in there real good. So when the walls are done they will be well past where I stopped rolling.
how was the product applied? poured lines, in puddles, paint pan?
how was it applied? squeegeed, rolled or brushed.
I poured it out in ribbons. I'd pour a small line, step back and pour another, and so on. I used the squeegee that Wolverine provides with the ridges to spread it. Then I used an 18" 3/8 nap roller (lint free) to roll it out.
How long did it take to apply each coat. Each total coat or section? Hell to be honest I don't even remember. I started and didn't stop till I finished.
what was the temps, humidity? mid 90's, humidity in the 75-80 range I think
what was the times between coats.as answered above, don't know