.
d
1 + 0.07Rcmp
92
d
, E/E
, d
es
E
odul
ticity
as
e mh
MPa3
n t
of el
10
ee
us
etw
odulM
Strength of concrete, MPa
o b
Rati
Strength of concrete, MPa
Fig. 5.3. Relationship between the
dynamic modulus of elasticity (E
Fig. 5.4. Ratio between static modulus of
d) and
compressive strength
elasticity (E) and dynamic modulus of
elasticity (Ed) for different strength of
concrete
93
Relative deformation (ε ) is a ratio between tensile strength (R ) and
r
t
dynamic modulus of elasticity (E ):
d
ε
R / Е
(5.6)