Expanded Clay Aggregate (ECA®) is a round pellet structure produced by firing natural clay at temperature of 1200°C. They are classified as a fully non-combustible material Euro Class A1.
ECA® Blocks and walls made of Expanded Clay Aggregate (ECA®) have characteristics of being non-combustible and fire resistant with high water absorption capacity. This exceeds the statutory requirements of Standard Building Code and provides a significant level of life and property protection against fire.
The fire resistance will depend on the element type, thickness, and type of joints, connection and finish applied. In comparison to alternative construction systems such as timber frame, clay brick and heavy concrete elements of a similar size, the use of Expanded Clay Aggregate (ECA®) walls and panels offers a significant improvement in fire resistance due to its inherent properties.