Deco-Crete TV. Someone asked you why did their concrete discolor (turn a darker grey or grey spots is what I’ve noticed on some concrete jobs in my neighborhood. And it looks horrible!) after a couple yrs and you sent them a video on sealing and stamping their driveway. Just curious as well because I had my large patio area did (concrete truck delivered the large amount of concrete, 40 ft wide by 16 ft from glass slider/back wall of house out to the edge. And about 1 yr 8 mnths later it is still the same light grey/white looking as the front driveway, front door and sides when the house was built/finished July 22/23. And, I had the same guy come back 2 months later (Sept/2023) and pour a small 7 ft W x 11 ft L leveled concrete slab in the rear corner of backyard. However. I noticed after a month or so some small medium to dark grey spots appeared in one area of the slab. What do you think may be the difference between what the big cement truck poured verses what the concrete guys mixed out in their mixer that was attached to their work truck? A neighbor down the street has some very large areas of that dark grey discolor in the right side of their driveway they had done over a year ago. And it looks horrible! What’s going on with these concrete guys doing such terrible jobs on homeowners driveways and small concrete jobs these days? Please help! 🤔💭
Thanks for the comment!! First off, ready-mix concrete (out of a truck) will always look a bit different than bag mixes or concrete out of a trailer mixer. That being said, even ready-mix concrete can cure out to a different color from pour to pour. Concrete plants and contractors will never guarantee the color of standard gray concrete, there are just too many variables. That's part of why colored concrete is quite a bit more expensive. As for the discoloring, that could come from a verity of reasons. A lot of it happens during the curing, and it's not really anyone's fault. The biggest mistakes that the contractor could make on this would be using water when finishing or applying sealer/cure unevenly. There are plenty of high-quality concrete contractors out there, but as in any trade, there are some that cut corners. We always recommend doing your homework before hiring a contractor. Just keep in mind that the high-quality ones will come at a higher price and you get what you pay for. The best recommendation for discolored driveways would be to thoroughly power wash the surface so you can see what you're dealing with. After that, you make a better dision on what type of sealer to use. Some will darken the color, and others will just make it water-repellant. Hopefully, this helps! Thanks for watching Deco-Crete TV!!!
@@DecoCreteTV We definitely did our homework. We also drove through our new community and noticed that most of the smaller concrete jobs had those grey surface stains in/on them. And the larger pours/driveway and backyard patio’s cured (neighborhood is only 1 1/2 yrs new) with that bright light grey finish. And then that’s when we started doing our online search RU-vid and asking around the neighborhood who did their jobs and do they remember them mixing it with bags out front on the smaller jobs. Unanimously they said they remember the small jobs were done by guys mixing bags in a small mixer. We’re having a new contractor do our 4ft wide extension on both sides of our driveway. I walked him a couple of houses over to show him our neighbors damaged extra widened driveway pours. And he assured me he would have the concrete truck deliver our concrete after seeing and commenting on that horrible job. So yeah, some people are catching on. Thanks for the advice guys.
@@Commonsense4Life You are welcome!! Sticking to ready-mix concrete is always a good idea! Here's a link to another video that may be an option for fixing the discoloration problem in your area. Thanks again for watching Deco-Crete TV! ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-H3S_LDOmSVU.html
Removing the sealer would be the first step. You can do this with chemical strippers but sandblasting is the best option. Sandblasting may remove some stain in the process.
Solvent based sealers will melt with rejuvenator, then dry back up into a hard film. Water-based sealers will act different. They generally turn into a gummy substance from rejuvenator and will never harden up again. 👍
