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Stress strain curve of concrete is
- a)A perfect straight line upto failure
- b)Straight line upto 0.002% strain value and then parabolic upto failure
- c)Nearly parabolic upto 0.002% strain value and then a straight line upto failure
- d)Hyperbolic upto 0.002% strain value and then a straight line upto failure
Correct answer is option 'C'. Can you explain this answer?
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Stress strain curve of concrete isa)A perfect straight line upto failu...
Stress-Strain Curve of Concrete
The stress-strain curve of concrete is an important aspect to understand the behavior of concrete under different loading conditions. It provides information about the strength and elasticity of the concrete material. The stress-strain curve of concrete can be obtained by performing compression tests on concrete samples.
Nearly Parabolic up to 0.002% Strain Value
The stress-strain curve of concrete is nearly parabolic up to 0.002% strain value. This means that the curve is curved slightly upwards from the initial point of loading until 0.002% strain value is reached. This is known as the elastic region of concrete, where the material behaves elastically and returns to its original shape when the load is released.
Straight Line up to Failure
After the elastic region, the stress-strain curve of concrete becomes a straight line up to failure. This means that the material behaves in a plastic manner and does not return to its original shape when the load is released. The slope of this straight line represents the strength of the concrete material.
Factors Affecting Stress-Strain Curve of Concrete
The stress-strain curve of concrete is influenced by various factors such as the mix design, water-cement ratio, curing conditions, and loading rate. The mix design and water-cement ratio affect the strength and stiffness of the concrete material, while the curing conditions affect the rate of gain of strength. The loading rate affects the behavior of the material at different strain rates.
Conclusion
In conclusion, the stress-strain curve of concrete is nearly parabolic up to 0.002% strain value and then a straight line up to failure. This curve provides important information about the strength and elasticity of the concrete material and is influenced by various factors. Understanding the stress-strain curve of concrete is essential for designing concrete structures that can withstand different loading conditions.
The stress-strain curve of concrete is an important aspect to understand the behavior of concrete under different loading conditions. It provides information about the strength and elasticity of the concrete material. The stress-strain curve of concrete can be obtained by performing compression tests on concrete samples.
Nearly Parabolic up to 0.002% Strain Value
The stress-strain curve of concrete is nearly parabolic up to 0.002% strain value. This means that the curve is curved slightly upwards from the initial point of loading until 0.002% strain value is reached. This is known as the elastic region of concrete, where the material behaves elastically and returns to its original shape when the load is released.
Straight Line up to Failure
After the elastic region, the stress-strain curve of concrete becomes a straight line up to failure. This means that the material behaves in a plastic manner and does not return to its original shape when the load is released. The slope of this straight line represents the strength of the concrete material.
Factors Affecting Stress-Strain Curve of Concrete
The stress-strain curve of concrete is influenced by various factors such as the mix design, water-cement ratio, curing conditions, and loading rate. The mix design and water-cement ratio affect the strength and stiffness of the concrete material, while the curing conditions affect the rate of gain of strength. The loading rate affects the behavior of the material at different strain rates.
Conclusion
In conclusion, the stress-strain curve of concrete is nearly parabolic up to 0.002% strain value and then a straight line up to failure. This curve provides important information about the strength and elasticity of the concrete material and is influenced by various factors. Understanding the stress-strain curve of concrete is essential for designing concrete structures that can withstand different loading conditions.
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Stress strain curve of concrete isa)A perfect straight line upto failureb)Straight line upto 0.002% strain value and then parabolic upto failurec)Nearly parabolic upto 0.002% strain value and then a straight line upto failured)Hyperbolic upto 0.002% strain value and then a straight line upto failureCorrect answer is option 'C'. Can you explain this answer?
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