Hot answers tagged concrete
While you probably could, this wouldn't be a good way to try and match a color. It would likely effect the setting performance of the concrete and you'd never match the color of the paint. On top of everything else, it would be much more expensive than the alternatives - all you really need is the pigment and everything else that makes up the paint is ...
That is Efflorescence. Harmless, just looks bad. It's not a spill, just minerals from the concrete crystallizing on the surface of the concrete. This is very normal and when it is humid, not much can be done about it. Just wash it off when you notice it.
Will the drylok work? Maybe with minimal water. What you need to do though is get gutters on your house or regrade your landscape. Or both. If water is draining under your slab there is nothing you can do to keep it from coming up through the floors.
Steel shims if shimming steel and concrete - either with holes that you bolt through, or tack weld them in place. To the extent that you can use "fewer, thicker" shims rather than more thinner ones, do that. Paint, galvanizing, or "cold galvanizing" (zinc-loaded paint) may be advisable to limit/reduce rusting over time. The other solution, though it's not ...
It is virtually impossible to specify the proportion of water in a concrete mix due to the wide range of moisture content in the sand used, Regarding "old" cement powder - if kept completely and utterly dry it will work fine after literally years. The only downside of using old cement is that the Chromium additives change from relatively harmless to ...
Rent a concrete saw, make cuts more than halfway through it (preferably within an inch of the wooden floor) in a grid pattern, insert prybar in cuts, break chunks loose. Once you get the first chunk out, pry towards the hole.
You are really brave to finish a basement with a known moisture issue. I for one wouldn't spend a penny on finishing my basement until I have seen it go through a wet season without failing. Not telling you to stop but would warn to slow down. Get your framing/electric/plumbing/whatever done and let it go through at least 4-5 months before finishing ...
That is a major issues, especially on a new home. Call the developer. They have a right to repair it before you pursue legal options.
Cured concrete is a chemical brew. When concrete is setting, it doesn't just dry out. There is an exothermic chemical reaction going on. Go put your hand on it. It'll be warm (or hot, depending on how thick the pour is). My point is that if you were to mix latex (rubber) into the concrete mix to color it, you would be interfering with the chemistry and ...
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