Basics of Concrete Science by Professor L. Dvorkin, Professor O. Dvorkin - HTML preview
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,
Р
85
+ R
s
.
c
τ
where Pc.s - quantity of cement stone in the concrete (by mass).
Elastic properties of concrete can be characterized by static modulus of
elasticity (E) and by dynamic modulus of elasticity (E ) which taking into
d
account stresses and strains in specimen at vibrations.
Relationship between dynamic modulus of elasticity (E ) and
d
compressive strength of concrete (R
) is expressed by following
cmp
formula:
4 ⋅103R
Е
cmp
=
(5.5)