is there a special dye that i can use on my concrete drive to give it some colour?

Check with Porter paints. They have a very in-expensive stain that you apply with a garden sprayer. They have lots of colors, and you can blend them too. Non-toxic also. Works great. Try it on a small area [...]

Concrete Countertops are Cool!
If you’re unfamiliar with concrete countertops, you are probably feeling a little amused with the whole idea of having a sidewalk where your kitchen counter top or bathroom vanity should be.
I can assure you that this comical vision is far from the stylish, warm and natural look of this surface. Concrete countertops [...]

What can you use to remove sealer out of concrete?

How can you get sealer out of cement or concrete?

Why would you want to get sealer out? Muriatic acid is the normal product for etching concrete. Are you going to paint it?

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will rust on iron bars stop if put under cement mixture?

i know tru experience that rust continue under paint, will it be different under concrete?

Yes, it will virtually stop; as said above, the bars will continue to rust but at a very slow rate. Cement dries out fast, and once it is set, neither oxygen [...]