Lightweight aggregate has been used in construction since Roman times, valued for its combination of low weight and high strength. The variability of natural lightweight aggregate remained a challenge for almost 2,000 years until the advent of industrial production processes.

Argex started the production of expanded clay in the early 1950s. Today, expanded clay is a well-established lightweight aggregate suitable for a wide range of applications. It has proven to be a durable and safe material able to withstand different climates all over the world: from the Mediterranean to Scandinavia and the US to the far East. The expanded clay industry is a sustainable industry. It is resource efficient and contributes to a competitive low carbon economy. The industry is committed to continuously reducing the impact of production and developing the properties and applications of the material to improve its sustainability.

Expanded clay is produced with the maximum care for employees, environment, climate, neighbours and local communities. Over the last few decades, the industry has considerably reduced both its energy consumption and CO2 emissions and there is a commitment to delivering further CO2 emissions under the EU Emission Trading Scheme. Using waste that cannot be recycled or reused as substitutes for fossil fuels not only reduces fossil fuel consumption and contributes to a true circular economy, it also reduces CO2 emissions. For every cubic metre of natural and abundant clay, up to five cubic metres of expanded clay is produced. Using expanded clay saves energy and reduces CO2 emissions in the construction and transport sectors. Its low weight means fewer trucks and fewer journeys, thus reducing the carbon impact of transportation. The thermal insulation properties of expanded clay materials used in construction, improve the energy performance of the buildings, significantly contributing towards reducing energy consumption and related CO2 emissions.

Argex  is a high quality, durable lightweight expanded clay aggregate, that has been used for over half a century. The main characteristic of Argex is low density combined with high strength. In addition, the aggregate holds many other important characteristics, and it can be described as an “all-in-one” product, providing a huge range of properties vital for sustainable construction.