Table 2.

Summary of description of experiment types and conditions.

Experiment typeNumber of experimentsMaterialsDimensionsHydrationT (°C)Time
Medium cells2Concrete CEM-I-SRCylindrical 70 × 30 mmClayey saline solution Na+-SO42− dominantGradient
100°C at bottom (bentonite)
∼40°C at the interface
4.5 and 6.5 y
FEBEX bentonite
1.65 g/cm3 dry density
70 × 71.5 mm
Small cells3Lime mortar 2:1 quartz-sand/CaO mixture50 × 6 mmConstant
60°C
18 months
Natural FEBEX bentonite
Pre-treated FEBEX (Mg-depleted)
1.65 g/cm3 dry density
50 × 25 mm
Batch experiments8FEBEX bentonitePowderPortlandite solution Ca(OH)2 at molar ratios of 2:1 and 3:1 for mont/portl.60 and 120°C2 months
FEBEX bentonite <2 μm (montmorillonite)