Table 11 Physical properties of bentonite, backfill materials, and host rock

Density of solid particles (kg m^-3)

2740

2680

2650

Porosity

0.41

0.40

0.01

Dry thermal conductivity (W·m^-1K^-1)

0.72

1.09

2.85

Saturated thermal conductivity (W m^-1K^-1)

1.20

2.15

3.17

Specific heat of solid (J·Kg^-1K^-1)

966

981

820

Intrinsic permeability (m²)

1.5E-20

1.6E-13

1.0E-18

Tortuosity

0.67

0.67

0.80

van genuchten parameter λ_van

0.3

0.5

0.6

van genuchten parameter N

1.9

1.9

3.0

Klinkenberg parameter (Pa^-1)

1.0E9

1.0E8

6.9E5

Initial pore pressure (Pa)

-1.2E7

-4.1E6

-3.3E3

Chemical species

HS^-

Cl^-

O₂

Diffusion coefficient at 25 °C (m² s^-1)

5.0E-10

2.0E-9

2.4E-9

Activation energy (kJ mol^-1)

15

15

15