benwah
Well-known member
Well, it happened. I am doing a couple exterior patios for a customer, using polyaspartic and quartz, and the bottom slab cracked.
After I installed the 2nd broadcast I left for the weekend, and after returning on Monday I saw the slab had cracked and it was very noticable thru the quartz system.
Luckily, the customer had previously chosen to change the color, so it's not a total loss..
This is how I went about fixing the cracks.
I ground the quartz back to bare concrete in most areas. I opened up the cracks and then filled them with a flexible polyurea joint filler.
I then embedded 2oz woven fiberglass over the cracks with 85% solids fast-cure polyaspartic. While the coating was still wet I did a light quartz broadcast (in the new color) to bring the floor height back up, or close to the original.
The next day I spent about 90 minutes with a rough stone knocking down the high areas, which were mostly the hard looped edge of the fiberglass. After a good vacuum I will apply the first of 2 additional broadcasts in the new color.
Will the slab crack again? Probably
Will it be noticable? Hopefully not
Does the customer care how much is costs to re-do it? Nope.
This is the system they want, no matter what they're told, so this is what we are doing.
Here are some pics of the fiberglass process, the new color change and the tools I used to repair it. I'll post final results when complete.
After I installed the 2nd broadcast I left for the weekend, and after returning on Monday I saw the slab had cracked and it was very noticable thru the quartz system.
Luckily, the customer had previously chosen to change the color, so it's not a total loss..
This is how I went about fixing the cracks.
I ground the quartz back to bare concrete in most areas. I opened up the cracks and then filled them with a flexible polyurea joint filler.
I then embedded 2oz woven fiberglass over the cracks with 85% solids fast-cure polyaspartic. While the coating was still wet I did a light quartz broadcast (in the new color) to bring the floor height back up, or close to the original.
The next day I spent about 90 minutes with a rough stone knocking down the high areas, which were mostly the hard looped edge of the fiberglass. After a good vacuum I will apply the first of 2 additional broadcasts in the new color.
Will the slab crack again? Probably
Will it be noticable? Hopefully not
Does the customer care how much is costs to re-do it? Nope.
This is the system they want, no matter what they're told, so this is what we are doing.
Here are some pics of the fiberglass process, the new color change and the tools I used to repair it. I'll post final results when complete.
