Over deze norm
This document provides a framework for specifying the properties and relevant test methods for hard paving grade bitumens which are suitable for use in the construction and maintenance of roads, airfields and other paved areas. This framework covers three essential characteristics according to the mandate M/124: EU Construction Products Directive 89/106/EEC : - "Consistency at intermediate service temperature"; - "Consistency at elevated service temperature"; - "Durability" of the above. This document is closely related to EN 12591. This introduction gives information on the basis for selection of the grades defined in this document, the status of certain of the properties and test methods, and proposed development of this document. The general principle adopted in the development of EN 12591 was to provide a range of grades suitable for the manufacture of the materials for road construction and maintenance used, and the climatic and traffic conditions encountered, in all the Member States. This document extends the range of grades specified in EN 12591 following the wider use of materials for road construction and maintenance having very high modulus values. This standard can be read in conjunction with National Guidance Documents, where they exist, which have the opportunity to identify the appropriate grade in the territory of use.