Im sure you have realized when walking down a side walk there are separations in the concrete. That is because without the separations there would be alot of perssure on the big piece of concrete, the land shifts causing the concrete to crack. Once the concrete has cracked water that freezes in it also causes the cracks to expand.
To answer this question we must first differentiate between concrete and cement. Concrete is the finished product when cement is used. Analogous to bread is the finished product when flour is used. Got it? As to how many cups in a pound of powder, consider that there are 16 ounces to the pound, and eight ounces to a cup. That makes it two cups to the pound of cement. How much concrete that would make is another matter.
No, concrete is entirely artificial.
Concrete is a heterogeneous mixture.
They are the foundations of natural concrete
Abstract
When someone asks a question like that.
it your mun
It's concrete with chopped-up fiberglass in it, which makes it stronger.
Limit state design is designed a concrete member for its various damage limit states, concrete sover spalling, steel yielding all the way up to the crushing of the concrete core, with this you can control how you want the concrete member to fail.
reinforced concrete is better than unreinforced concrete for one major reason. concrete is an extremely strong material when it is put under pressure. however, when tension forces are introduced it will tend to fail without reinforcement. short answer: unreinforced concrete will handle a lot of weight, but it is very brittle. source: carpenter
Go down to the shops and buy around 40 tubs of moisturiser and smother on concrete. This should make the concrete feel nice and get rid of all wrinkles.
My mom
because it makes you fail in life
An open.A short to ground. Resistance.
Yes. I've used it before. However it has a tendency to make the concrete slightly more porous. But, it makes for much lighter concrete.
What size bags of concrete and how big are the bricks? Makes a difference.
60 pound of concrete bag makes 1/2 cubic foot of concrete