Hardness of Material given CSI evaluator uses Hardness Figure = ((20*Composite Sleeper Index)-Strength Figure)/10 to evaluate the Hardness Figure, Hardness of Material given CSI is figure for general hardness for both green and dry timber at 12 per cent moisture content. Hardness Figure is denoted by H symbol.
How to evaluate Hardness of Material given CSI using this online evaluator? To use this online evaluator for Hardness of Material given CSI, enter Composite Sleeper Index (CSI) & Strength Figure (S) and hit the calculate button.