reinforced concrete
Steel reinforced concrete is concrete with rods of steel running through it.
X-ray is used to see inside concrete and is often used to test for cracks in high stress applications.
Depending on what kind of sealer you use, the concrete should be completely dry and firm enough to walk on. However, I know of at least one concrete sealer (Concrete Treat) that can be applied immediately after the concrete has been placed -- with no wait at all for curing. Check out the products as you go and see what might work best for you. See the attached link.
cover it
Sunglasses are a concrete noun- you can touch them. They are, of course, not made out of concrete. They would be very hard to see through. And rather heavy.
Recent technology allows them to see right through walls of concrete and steal using microwaves.
Concrete noun.because whe can see it touch it
Concrete. You can see and touch a typewriter.
things that are opaque are things that we cannot see through
Concrete repair quotes can be made through most concrete companies that offer home service. There are estimates that can be made over the phone but to get the most accurate price a foreman would have to see what needs repaired.
reinforced concrete
Concrete. (You can see it, feel it, bite it!)
Steel reinforced concrete is concrete with rods of steel running through it.
Concrete. You can see and touch a typewriter.
radio and tv beams can pass through concrete as x-rays pass through the body
No