BS EN 12697-31 is the 31st part in the multi-series of documents on bituminous mixtures.
BS EN 12697-31 is applicable to bituminous mixtures for specimen preparation by a gyratory compactor. The method is used for:
BS EN 12697-31 applies to bituminous mixtures (both those made up in laboratory and those resulting from work site sampling), with an upper aggregate size not larger than 31,5 mm.
BS EN 12697-31 on specimen preparation by a gyratory compactor is relevant to:
Bituminous mixtures, also known as asphalt mixtures, are widely used as construction materials, that impart durability and structural strength to the end-application. Meanwhile, a gyratory compactor of bituminous mixture is used to simulate and reproduce real compaction conditions under actual road paving operations, thus determining the compaction properties of the asphalt. In this regard, the BS EN 12697-31 walks you through the specimen preparation procedures by a gyratory compactor, the results of which can allow you to determine and improve compressive strength. Moreover, you can avoid challenges arising from inconsistent strength and layer interface barriers. The acquired results are also employed in the investigation of volumetric and mechanical characteristics of the asphalt mix.
Overall, by adopting specimen preparation by a gyratory compactor with BS EN 12697-31 guidelines, you can achieve compaction of asphaltic paving material as per your target mixture density or void content. As a result, you can ensure that the bituminous mixture used for your engineering needs has only the required levels of void content so as to prevent intrusion of air and water, which can compromise on the structural integrity of your projects.
BS EN 12697-31:2019 supersedes BS EN 12697-31:2007, which is withdrawn. BS EN 12697-31:2019 including some technical changes with respect to BS EN 12697-31:2007. These include:
EN 12697-31:2019