Question

your reading
Concrete
Concrete is stonelike material made by mixing sand, gravel, and water with cement. It has
emerged as the most popular building material in the world. In fact, it is so widely used all
over the world that it is virtually impossible to pass through a city or town without seemg
bridges and buildings built with it.
Concrete has become the most popular building material because it is strong, cheap,
and resistant to fire and water. It hardly ever needs repairs. One could say with some
justification, Concrete buildings are built for ever".
There are three different kinds of concrete. The first kind is called mass concrete. This
is the kind used for highways and foundations of buildings. It is poured and allowed to stand
undistrurbed until it hardens. It needs no special treatment. The second kind is reinforced
concrete. It is used where heavy weights and other strains are expected. Remforced concrete
is extremely strong because it has steel rods running through it. The third kind of concrete is
performed concrete. This is concrete made into slabs or tiles ready to use. This third type
saves the builder the trouble of making his own concrete.​

Answer 1

your reading

Concrete

Concrete is stonelike material made by mixing sand, gravel, and water with cement. It has

emerged as the most popular building material in the world. In fact, it is so widely used all

over the world that it is virtually impossible to pass through a city or town without seemg

bridges and buildings built with it.

Concrete has become the most popular building material because it is strong, cheap,

and resistant to fire and water. It hardly ever needs repairs. One could say with some

justification, Concrete buildings are built for ever".

There are three different kinds of concrete. The first kind is called mass concrete. This

is the kind used for highways and foundations of buildings. It is poured and allowed to stand

undistrurbed until it hardens. It needs no special treatment. The second kind is reinforced

concrete. It is used where heavy weights and other strains are expected. Remforced concrete

is extremely strong because it has steel rods running through it. The third kind of concrete is

performed concrete. This is concrete made into slabs or tiles ready to use. This third type

saves the builder the trouble of making his own concrete.