Reinforced Concrete Design
Reinforced Concrete Design Book By George F. Limbrunner
Concrete consists primarily of a mixture of cement and fine
and coarse aggregates (sand, gravel, crushed rock, and/or
other materials) to which water has been added as a necessary
ingredient for the chemical reaction of curing. The bulk
of the mixture consists of the fine and coarse aggregates. The
resulting concrete strength and durability are a function of
the proportions of the mix as well as other factors, such as
the concrete placing, finishing, and curing history.
The compressive strength of concrete is relatively high.
Yet it is a relatively brittle material, the tensile strength of
which is small compared with its compressive strength.
Hence steel reinforcing rods (which have high tensile and
compressive strength) are used in combination with the
concrete; the steel will resist the tension and the concrete the
compression. Reinforced concrete is the result of this combination
of steel and concrete. In many instances, steel and
concrete are positioned in members so that they both resist