Class 1 (Chief Engineer) Engineering Management 📅 Sep 2022

Exam Question

Several casualities have been reported involing ships carrying Bauxite as cargo. Discuss the causes of such casualties and the specific care and action to be taken, taking into account the provisions of relavant IMO instruments, when handling and carrying Bauxite in bulk.

Reference Answer

### Introduction
Casualties involving vessels carrying Bauxite, such as the tragic loss of the M/V Bulk Jupiter, have highlighted the severe risks associated with this cargo, which were previously underestimated. The primary hazard is not chemical but physical, relating to the potential for certain types of Bauxite to behave like a liquid under specific conditions, leading to a catastrophic loss of stability. The International Maritime Solid Bulk Cargoes (IMSBC) Code provides the regulatory framework to mitigate these risks.
### Causes of Casualties: The Phenomenon of Liquefaction
The principal cause of Bauxite-related casualties is a rapid loss of transverse stability due to cargo liquefaction or dynamic separation.

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