Methodology for the Design of Lightweight Concrete with Expanded Clay Aggregates

Figure 1— Examples of Precast Products Made with Lightweight Concrete In Portugal, lightweight expanded clay aggregates (LECA) are typically used in the production of vibrantcompressor lightweight concrete, which presently represents 10% of the total volume of vibrant-compressor concrete produced in Portuguese factories. The use of LECA aggregates has increased since it was introduced in 1990’s, after the acquisition of the Portuguese factory by the industrial word leader of LECA production [Melo (2000)].