corium

The initial situation is characterized by a molten corium pool in the lower head.

Regarding the corium stabilization outside reactor vessel, there are two preferred methods used for the operating Light Water Reactors: pouring water on top of the melt pool which is discharged from the failed vessel into the normally dry cavity and discharging melt into the wet cavity which is flooded with water before the arrival of the melt.

For the advanced reactor, a concept of core catcher is employed to cope with the corium stabilization outside reactor vessel.

This mechanical "dipping" system is proprietary to Corium and provides a high-strength facade that offers a level of design flexibility difficult to attain with hand laid bricks.

Corium suits a wide range of substrates, including tight-gauge steel framing, concrete, structural steel, masonry, wood frame, continuous insulation systems, and insulated metal panels.

The Corium Cladding System has passed testing for AAMA 501.1 Water Penetration, AAMA 501.5 Thermal Cycling, ASTM E283-04 Air Leakage, ASTM 331-00 Water Penetration, ASTM 330-02 Structural Performance, Air Pressure Differences and BCRL BM1:1993 Freeze/ Thaw testing at 100 Cycles.