Stripping basement concrete floor and then I ran into an unknown substance
Hello,
I was stripping my concrete floor in the basement as most of the paint was coming up and we did see water (not much) during last winter's thaw through some fine cracks in the concrete. after letting the stripper sit for a couple hours I scraped and then scrubbed with a hard bristle broom designed for concrete. I had originally thought the concrete was dyed red but then in some areas, the red started to come off and it became very messy/slippery. I searched google but cannot find anything that relates to the material; it is red but when scrubbing off it is almost a metallic copper colour and it sticks to everything. I am assuming this is a concrete sealer so now my plans have changed. I was originally going to strip, etch, bonding primer then paint but now I am unsure of how to proceed as I cannot confirm what the material is. Does anyone have any idea? I have attached photos of the products I am using and the floor. Any help would be greatly apprecaited.
I can't recommend coating the floor with anything since you have known water issues. Even water vapor and/or liquid water can cause most floor coatings to fail within a few years.
Apologies if this question is better posted elsewhere, but my old man and I are new to working with concrete. We transferred a concrete countertop to a wooden counter base and a small crack formed down the middle of the countertop. The crack is barely noticable and the countertop is still structurally sound, but we only found out after the fact that the wood under it was not perfectly flat, leading to a small gap in between the concrete and the wood
[img]https://cimg3.ibsrv.net/gimg/www.doityourselft.com-vbulletin/1500x2000/img_1498_eb0a6d9322d0756be64c7454a251e8a38ac59491.jpg[/img]
[i]Note: The wedge pictured on the left isn't increasing the gap size, as that is how big the gap was before we added it.[/i]
My dad is concerned that the gaps will cause the crack in the concrete to deepen, as the crack goes all the way through. Do you guys have any ideas on how to fill the gap? I mentioned some kind of foam like DRICORE, but he is concerned that it will expand too far and push it up. Is there a better alternative that doen't involve removing the countertop for fear of damaging it further?[img]https://cimg7.ibsrv.net/gimg/www.doityourselft.com-vbulletin/1500x2000/img_1499_a83c092bd4596d5d9c8b09a5cd5c8d238e9afc4e.jpg[/img]
[i]The countertop probably weighs somewhere between 300-350 lbs[/i]
If other info is needed I can provide.
I have a small porch that I'm wanting to extend out on each side to the house. I have 2 pieces of deck walkways that are big enough to go in those areas. The decking would obviously be cheaper because I already have it. Concrete would probably look better. But I'm on a tight budget. Not sure how much that would cost. The areas are 48"×63". I'm posting pictures.
[img]https://cimg2.ibsrv.net/gimg/www.doityourselft.com-vbulletin/2000x1504/20220913_144730_b829b0440e1539c81119fa101d21c86f9c9a1637.jpg[/img]
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[img]https://cimg5.ibsrv.net/gimg/www.doityourselft.com-vbulletin/2000x1504/20220913_144743_7e981928137b2316cf8d469b2ee29f7f8c1773b3.jpg[/img]