Concrete has undergone rapid and phenomenal development in recent
decades. Today, new classes of concretes (i.e., high strength, very high
strength and ultra high strength concretes) has been manufactured and
transferred from laboratory research to practical application. These
concretes are used increasingly and replaced normal strength concrete in
many structural applications. Although the mechanical properties and
durability of normal strength concrete has been well evaluated, these
properties of the new classes of concretes as well as the relationship < br />between the compressive strength and other mechanical properties as well
as the durability of concrete are not well identified.
In this paper, different classes of concrete with a wide range of
compressive strength (250 to 1000 kg/cm2) are manufactured using local
materials and their mechanical properties as well as their durabilityrelated
properties are determined. Furthermore, the mathematical
relationships between the compressive strength and other properties are
developed using statistical methods.
The experimental results showed that it is possible to produce concrete
with compressive strength in excess of 1000 kg/cm2 using local materials
in Egypt. Furthermore, the suggested mathematical equations can be used
to derive the properties of concrete based on its compressive strength.