lightened embankments
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Please explain in short the use of eca or expanded clay aggregate for lightened embankments?

Please explain in short the use of eca or expanded clay aggregate for lightened embankments?

In areas where a traditional, earth-only embankment may be impractical or dangerous – such as in landfills, embankments made on the softened ground, and embankments on potentially-unstable slopes – Expanded Clay Aggregate (ECA) can be used to create special, lightened embankments.

ECA is naturally incompressible and is able to drain large quantities of water without absorbing it, due to the highly porous, air-filled structure of the aggregate. This means it will not settle or move, unlike compacted soil. In addition, the lighter weight of the embankment makes it less prone to shifting and improves the soil dynamics of the project.