A3	Non-plastic fine sand
AASHTO	American Association of State Highway and Transportation Officials
ASTM	American Society for Testing and Materials
A.U.	Airy unit
CBR	California Bearing Ratio
Cc	Coefficient of curvature
Cu	Coefficient of uniformity
C-A-H	Calcium aluminate hydrate
C-S-H	Calcium silicate hydrate
C3A	Tricalcium aluminate
C4AF	Tetracalcium alumino ferrite
C2S	Tricalcium silicate
Es	Young’s modulus
D10	Grain diameter (in mm) corresponding to 10% passing
D30	Grain diameter (in mm) corresponding to 30% passing
D50	Grain diameter (in mm) corresponding to 50% passing
D60	Grain diameter (in mm) corresponding to 60% passing
D90	Grain diameter (in mm) corresponding to 90% passing
GGBFS	Ground granulated blast furnace slag
GSD	Grain Size Distribution
L	Lime
LOI	Loss on ignition
LSM	Laser-scanning microscopy
Plime	Factor of multi-level statistical analysis for lime
PVA	Factor of multi-level statistical analysis for volcanic ash
ppm	Parts per million
SP	Poorly graded sand
SP-SM	Poorly graded sand with silt
UCS	Unconfined compressive strength
USCS	Unified Soil Classification System
VA	Volcanic ash
XRD	X-ray diffraction