.

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)