Swell Index Calculator
Free swell index of a clay per IS 2720 Part 40: (V_water - V_kerosene) / V_kerosene * 100, comparing equilibrium volumes of equal dry specimens in distilled water versus kerosene. Volumes in mL.
Description
Free swell index of a clay per IS 2720 Part 40: (V_water - V_kerosene) / V_kerosene * 100, comparing equilibrium volumes of equal dry specimens in distilled water versus kerosene. Volumes in mL.
Swell Index Calculator: Free swell index of a clay per IS 2720 Part 40: (V_water - V_kerosene) / V_kerosene * 100, comparing equilibrium volumes of equal dry specimens in distilled water versus kerosene. Volumes in mL.
When to use Swell Index
Use this geological calculation for a transparent first-pass interpretation of measured rock, soil, fluid, well, stratigraphic, isotopic, geophysical, or seismic data under an explicitly selected model.
- Water volume
- Equilibrium volume in distilled water in mL.
- Kerosene volume
- Equilibrium volume in kerosene in mL.
How Swell Index works
Free swell index of a clay per IS 2720 Part 40: (V_water - V_kerosene) / V_kerosene * 100, comparing equilibrium volumes of equal dry specimens in distilled water versus kerosene. Volumes in mL. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.1
- Free swell index
- Free swell index in percent.
Limitations and assumptions
- Geotechnical correlations and idealized failure models depend on stratigraphy, sampling disturbance, drainage, stress history, groundwater, density, anisotropy, scale, construction sequence, and laboratory or field method. Site-specific design requires investigation and code factors.
- Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.
Alternative or Complementary approaches
Compare independent measurements and models, retain units and analytical metadata, propagate uncertainty, and validate interpretations against logs, cores, maps, laboratory data, or field observations.
References
-
Geotechnical engineering — Wikipedia contributors
Similar or alternative tools
- Cement Slurry Density Calculator
Compute neat cement slurry density and yield per tonne of dry cement from the water/cement mass ratio and cement specific gravity.
- Richter Magnitude From Amplitude Calculator
Original Richter (1935) local magnitude ML = log10(A / A0), comparing maximum Wood-Anderson trace amplitude in millimeters with the zero-magnitude reference amplitude at the same epicentral distance (0.001 mm at 100 km by definition).
- Shrinkage Limit Calculator
Compute the shrinkage limit SL in percent from the initial water content (percent), wet and dry pat volumes (cm3), oven-dry mass (g) and water density (g/cm3).