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Is eca or expanded clay aggregate highly useful for containment structures?

Is eca or expanded clay aggregate highly useful for containment structures?

Yes, Expanded Clay Aggregate (ECA ®) is a highly-useful material that can be used with steel-reinforced concrete to create nuclear containment structures. As a material, ECA ® is extremely fire-resistant and has very good insulating properties, which can help reduce the impact of waste heat on the environment. In addition, it helps lighten the weight of load-bearing concrete containment structures. This allows for more flexibility when choosing between a dome or cylindrical design for the containment structure, and can help make it safer and less likely to fail critically, in the rare event that something does go wrong with a nuclear reactor.