Table T13. MAD property determination methods.
Property
Formula
Method A
Method B
Method C
Method D
Material
Soft, saturated Saturated Saturated Unsaturated
Use recommended
No No Yes Yes
Measurements
Total mass (Mt)
Mt Mt Mt
Dry mass (Md)
Md Md Md Md
Total volume (Vt)
Vt (fixed) Vt *
Vt (geometry)
Dry volume (Vd)


Vd* Vd*
Method-specific calculations for Mt, Mpw, Vt, and Vpw :
Mass of pore water (saturated, Mpw1) (MtMd)/(1 – s/1000) Mpw1 Mpw1 Mpw1
Volume of pore water (saturated, Vpw1) Mpw1/Dpw Vpw1 Vpw1 Vpw1
Total volume (Vt) VdVsalt + Vpw1

Vt
Dry volume (Vd) Vs + Vsalt Vd Vd

Volume of pore water (unsaturated, Vpw2) Vw = VtVd


Vpw2
Mass of pore water (unsaturated, Mpw2) Mpw2 = Vw x Dpw


Mpw2
Total mass (Mt) Md + Mw = Md + (VtVd) x Dw


Mt

Note: * = pycnometer.