Shrinkage limit & shrinkage ratio calculator

Inputs in the worked example

The live calculator starts with these values; change any of them and every result, check and diagram updates instantly.

Worked example — results

• ✓ Shrinkage limit below initial moisture

Method, formulas and assumptions

• Initial moisture content = 100*(34.6-24.1)/24.1 = 43.568 %
• Shrinkage limit w − (Vw − Vd)ρw/Md = 43.568-100*(21.3-14.2)/24.1 = 14.108 %
• Shrinkage ratio Md/(Vd ρw) = 24.1/14.2 = 1.6972
• Volumetric shrinkage = 100*(21.3-14.2)/14.2 = 50 %

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