PD 6682-8:2004 PDF Download

PD 6682-8:2004 is a standard that provides guidance on the use of BS EN 13450 in the UK. This standard focuses on aggregates for railway ballast, which are used in the construction and maintenance of railway tracks. The purpose of PD 6682-8 is to specify the requirements for aggregates used in railway ballast, as outlined in BS EN 13450.

BS EN 13450 itself specifies the properties of aggregates that are obtained through the processing of natural, manufactured, or recycled materials for railway ballast. These aggregates are used to provide stability and support for railway tracks, ensuring safe and efficient train operations.

In the UK, there are specific requirements for aggregates used in railway ballast, as outlined in the STBSA (Specification for Track Ballast and Stoneblower Aggregate). These requirements include dimensions (grading), flakiness, elongation, aggregate crushing value, and wet attrition value. PD 6682-8 provides guidance on how to meet these requirements using BS EN 13450, ensuring that the aggregates used in railway ballast adhere to the necessary standards for quality and performance.