Why is modulus of elasticity important in concrete?
Why is modulus of elasticity important in concrete?
The higher the value of the modulus, the stiffer the material is. Thus, comparing a high performance concrete to a normal strength concrete, it is seen that the elastic modulus for high performance concrete will be higher, thereby making it a stiffer type of concrete.
What are the material properties of concrete?
Hardened concrete has a number of properties, including:
- Mechanical strength, in particular compressive strength. The strength of normal concrete varies between 25 and 40 MPa.
- Durability.
- Porosity and density.
- Fire resistance.
- Thermal and acoustic insulation properties.
- Impact resistance.
What are the 6 properties of concrete?
The following are the properties of concrete in its hardened state, used by the designer during design process of reinforced concrete structure.
- Compressive Strength.
- Tensile Strength.
- Modulus Elasticity.
- Shrinkage of Concrete.
- Creep of Concrete.
- Coefficient of Thermal Expansion.
What is the modulus of elasticity of the material?
Modulus of Elasticity – is a measure of stiffness of an elastic material. It is used to describe the elastic properties of objects like wires, rods or columns when they are stretched or compressed.
What is the use of modulus of elasticity?
The applications of modulus of elasticity are: It measures the stiffness of the material. It defines the relationship between stress and strain in a material. It specifies the material that how much it can extends under tension or shortens under compression.
What is the modulus of concrete?
The elastic modulus of hardened cement paste is around 10 to 30 GPa and that of aggregate is between 45 to 85 GPa. Concrete generally have an elastic modulus varying between 30 to 50 GPa.
How do you find the modulus of elasticity of concrete?
Calculation
- Initial tangent modulus = stress/strain.
- Tangent modulus at working stress= stress/strain.
- Secant modulus = stress/strain.
