How to Calculate Composite Sleeper Index?
Composite Sleeper Index calculator uses Composite Sleeper Index = (Strength Figure+(10*Hardness Figure))/20 to calculate the Composite Sleeper Index, The Composite Sleeper Index, which evolved from a combination of the properties of strength and hardness, is an index used to determine the suitability of a particular timber for use as a sleeper from the point of view of mechanical strength. Composite Sleeper Index is denoted by CSI symbol.
How to calculate Composite Sleeper Index using this online calculator? To use this online calculator for Composite Sleeper Index, enter Strength Figure (S) & Hardness Figure (H) and hit the calculate button. Here is how the Composite Sleeper Index calculation can be explained with given input values -> 783 = (1200+(10*1446))/20.