![An isolated concrete pavement slab of length L is resting on a frictionless base. The temperature of the top and bottom fibre of the slab are Tt and Tb, respectively](https://www.gkseries.com/blog/wp-content/uploads/2023/07/An-isolated-concrete-pavement-slab-of-length-L-is-resting-on-a-frictionless-base.-The-temperature-of-the-top-and-bottom-fibre-of-the-slab-are-Tt-and-Tb-respectively.jpg)
Q. An isolated concrete pavement slab of length L is resting on a frictionless base. The temperature of the top and bottom fibre of the slab are Tt and Tb, respectively. Given: the coefficient of thermal expansion = ฮฑ and the elastic modulus = E. Assuming ๐๐ก > ๐๐ and the unit weight of concrete as zero, the maximum thermal stress is calculated as
![](https://www.gkseries.com/blog/wp-content/uploads/2023/07/Screenshot-420.png)
Ans: Zero