BS EN 13055:2016 specifies the properties of lightweight aggregates and fillers, as well as mixtures of these for bituminous applications and surface treatments, for use in concrete, mortar and grout. The British Standards Institution has adopted this standard, making it a key reference for engineers, specifiers and material producers.
The standard consolidates previous separate norms—BS EN 13055-1:2002, which focused on lightweight aggregates for concrete, mortar and grout, and BS EN 13055-2:2004, which covered lightweight aggregates for bituminous mixtures, surface treatments and unbound or bound applications. The 2016 revision supersedes both earlier documents, providing a single comprehensive specification.
BS EN 13055:2016 is structured to provide clear specifications for aggregate properties, including particle size distribution (grading), bulk density, loose bulk density and water absorption. Testing methods are either referenced from existing European standards or defined within the document itself, ensuring reproducibility and comparability of results across laboratories and manufacturing sites.
For architects and engineers, referencing BS EN 13055 in project specifications ensures that supplied lightweight aggregates meet defined performance thresholds. The standard's ISBN (9780580875069) and publication year facilitate unambiguous citation in tender documents and material datasheets. The standard is available through the British Standards Institution and construction information services such as NBS.
