3.EMERGENCE OF UNSATURATED SOIL MECHANICS IN PAVEMENT ENGINEERING ..... 14 3.1.
S
OIL MATRIC SUCTION MEASUREMENT
....................................................................................................... 15
3.2.
A
XIS TRANSLATION TECHNIQUE
................................................................................................................. 15
3.3.
S
OIL
-
WATER CHARACTERISTIC CURVE
........................................................................................................ 16
4.MOISTURE INFLUENCE ON PAVEMENT PERFORMANCE AND BEARING CAPACITY ..... 17 4.1.
M
ECHANISM OF MOISTURE RELATED MATERIAL DETERIORATION AND DEGRADATION
................. 17
4.2.
S
EASONAL
V
ARIATION IN
T
HIN
F
LEXIBLE
P
AVEMENTS
S
TRUCTURAL
S
TIFFNESS
............................ 18
5.MECHANICAL BEHAVIOUR OF UNBOUND MATERIALS AND SUBGRADE SOILS ............. 20 5.1.
L
ABORATORY INVESTIGATION AND MEASUREMENTS
............................................................................. 20
5.2.
R
ESILIENT MODULUS OF UNBOUND MATERIALS
...................................................................................... 20
5.3.
P
ERMANENT DEFORMATION OF UNBOUND MATERIALS
......................................................................... 28
6.MOISTURE EFFECTS ON UNBOUND MATERIALS AND SUBGRADE SOILS .......................... 31 6.1.
L
ABORATORY
-
BASED INVESTIGATION AND MEASUREMENTS
................................................................ 31
6.2.
F
IELD
-
BASED INVESTIGATION AND MEASUREMENTS
............................................................................. 33
