# Elastic Modulus of Concrete

Written by Jerry Ratzlaff on . Posted in Classical Mechanics

Elastic modulus of concrete, abbreviated as $$E_c$$, is valid for normal weight concrete.

## Elastic Modulus of concrete formula

 $$\large{ E_c = 57,000 \; \sqrt{ f_{c}{'} } }$$

### Where:

$$\large{ E_c }$$ = elastic modulus of concrete

$$\large{ f_{c}{'} }$$  = concrete specified cylinder strength 28 day (compressive strength)