Table 3: Strength and deformation indicators of the three kinds of red mud.

Type of samplePeak strengthCohesion c (kPa)Internal friction angle φ(°)Elasticity modulus E (MPa)Poisson ration μ
σ3 = 100 kPaσ3 = 200 kPaσ3 = 400 kPa

Bayer red mud from wetting process280.16485.12870.4638.4934.1230.160.365
Bayer red mud from drying process489.25620.161,308.6158.0135.8028.510.334
Sintering red mud1,301.212,057.103,110.78356.4233.5815.780.345