Page 54 - Mechanics of Asphalt Microstructure and Micromechanics
P. 54
Mechanical Proper ties of Constituents 47
Rock Anisotropy ratio R E
Rothbach sandstone 5.31
Diatomite 3.81
Bentheim sandstone 1.45
Hornfel 1.31
Adamswiller sandstone 1.26
Sandstone 1.23
TABLE 2.3 Deformability anisotropy ratio R E for different rocks (from Zhang, 2005).
Unconfined
Compressive Strength
General Description Rock c (1) (MPa)
Dolostone 33–310
Carbonate rocks with
Limestone 24–290
well-developed crystal cleavage
Carbonatite 38–69
Conglomerate 33–221
Arenaceous rocks with strong crystals Sandstone 67–172
and poor cleavage
Quartzite 62–379
Andesite 97–179
Fine grained igneous crystalline rock
Diabase 21–572
Amphibolite 117–276
Gabbro 124–310
Gneiss 24–310
Coarse grained igneous and metamorphic Granite 14–338
crystalline rock
Quartz diorite 10–97
Quartz monozonite 131–159
Syenite 179–427
Range of unconfined compressive strength reported by various investigators.
(1)
(2)
Not including oil shale.
TABLE 2.4 Typical range of unconfined compressive strength of intact rocks
(from AASHTO HB-17 2002).
