The thermal expansion coefficient α of steel is:a)13 × 10-...
The thermal expansion coefficient of steel (αsteel) is equal to thermal expansion coefficient of concrete αconcrete.
αsteel = αconcrete = 12 × 10-6/oC
That’s why RCC is widely used in civil engineering practise.
View all questions of this test
The thermal expansion coefficient α of steel is:a)13 × 10-...
The thermal expansion coefficient is a measure of how much a material expands or contracts when its temperature changes. It is denoted by the symbol α and is typically expressed in units of per degree Celsius (or per Kelvin).
The thermal expansion coefficient is a property that is specific to each material and can vary depending on factors such as composition, structure, and crystallographic orientation. It is an important consideration in engineering and design, as it can affect the dimensional stability and integrity of structures and components that are exposed to temperature variations.
The thermal expansion coefficient is defined as the fractional change in length (or volume) of a material per unit change in temperature. Mathematically, it is given by the equation:
α = (ΔL / L) / ΔT
where α is the thermal expansion coefficient, ΔL is the change in length of the material, L is the original length, and ΔT is the change in temperature.
Different materials have different thermal expansion coefficients. For example, metals generally have higher coefficients compared to non-metals. This is because the arrangement of atoms or molecules in a solid lattice determines how much it can expand or contract with temperature changes.
Understanding the thermal expansion coefficient of a material is crucial in various applications, such as in the design of bridges, buildings, and pipelines, where changes in temperature can cause significant dimensional changes. It is also essential in the manufacturing of precision instruments, where temperature-induced expansion or contraction can affect the accuracy and reliability of the equipment.
To make sure you are not studying endlessly, EduRev has designed Civil Engineering (CE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Civil Engineering (CE).