The invention of cement and concrete in the 19th century greatly increased demand for aggregates. With the boom in the construction sector, the use of raw materials from stone is growing.
Large volumes of aggregates are still used today, with France alone using 1 million tons per day!
Operations have adapted to meet the needs of customers and a wide range of applications. Today, different forms of aggregates are available:
- rock-based materials may occur naturally (e.g., sand, gravel) or result from crushing: these are referred to as "aggregates",
- "recycled aggregates" created from materials recovered from buildings, road surfaces and a range of industries.