Expanded Clay Aggregate (ECA), Road and Railway Embankment,

Road and Railway Embankment

Highways and Railways serve as lifelines of any developed or developing country. To build and to construct roads, highways and railways, Expanded Clay Aggregate (ECA) or Lightweight Expanded Clay Aggregate (LECA) is being used as a light fill material to reduce subgrade settlement or loose soil and to improve stability of structure and the surrounding slope area. Expanded Clay Aggregate (ECA) or Lightweight Expanded Clay Aggregate (LECA) is also used for the purpose of development of pedestrian and bicycle tracks, rail yards and railway platforms.

Expanded Clay Aggregate (ECA) or Lightweight Expanded Clay Aggregate (LECA) is applied to construct or to repair settlement defects, to increase levelling and to improve bearing capacity on highways, expressways and railways including metro or tube and high speed trains including bullet train.

In structures that protects roads or railways below slopes where there is a risk of falling rocks, Expanded Clay Aggregate (ECA) is preferred as a landing bed for boulders. These will tend to sink into it and will be absorbed without re-emerging.

Compared to other traditional aggregates like gravel, Expanded Clay Aggregate (ECA) imposes a significantly lower static load and due to its efficient energy dissipation it reduces the dyanamic action transmitted to supporting structures enabling concrete roofs to be thinner with less reinforcement.