The formula to calculate the Pipe Stretch (PS) is:
PS=F⋅L⋅12A⋅E
Where:
Concrete pressure is a measure of the total force per unit area that a column of uniform concrete exerts on the surface below it.
Let's assume the following values:
Using the formula:
PS=1000⋅20⋅122⋅30000000≈0.004
The Pipe Stretch (PS) is approximately 0.004 inches.