: Results are used to design foundations, pavements, and other structures to withstand soil volume changes. The Three Test Methods
The chemistry of the water used in the lab should ideally mimic field conditions (e.g., tap water, groundwater, or rain), as dissolved ions strongly dictate clay expansion rates. 5. Significance and Use in Geotechnical Engineering Data derived from the ASTM D4546-21 Astm D4546-21 Pdf
Used for single-point wetting-after-loading tests on natural soil deposits. A single specimen is loaded to a specific in-situ or design pressure and then inundated to directly measure expected field heave or settlement. Test Method C Reconstituted or Intact Measures load-induced strains A Guide to ASTM D4546-21: Standard Test Methods