What is BS EN 13108-8 - Classification and description of reclaimed asphalt about?

BS EN 13108-8 discusses bituminous mixture.

BS EN 13108-8 is the eighth part of the BS EN 13108 series of standards that specifies requirements for the classification and description of reclaimed asphalt as a constituent material for asphalt mixtures. BS EN 13108-8 only specifies reclaimed asphalt with bituminous binders, such as: paving grade bitumen, modified bitumen, or hard grade bitumen.

Note1: Reclaimed asphalt contaminated with coal tar or other additives, or components above hazardous levels is not covered by BS EN 13108-8 and will need to be considered under Member State Environmental, and Health and Safety Regulations.

Note2: BS EN 13108-8 is not a standard for compliance.

Who is BS EN 13108-8 - Classification and description of reclaimed asphalt for?

BS EN 13108-8 on classification and description of reclaimed asphalt is useful for:

Manufacturers and suppliers of bituminous mixtures
Construction industry
Civil engineers and contractors
Road, pavement, and highway construction companies
Repair and maintenance companies
Local authorities
Testing laboratories

Why should you use BS EN 13108-8 - Classification and description of reclaimed asphalt?

Site-won asphalt comprises asphalt taken by milling of asphalt road layers, slabs ripped up from asphalt pavements and asphalt from reject and surplus production. The processing of site-won asphalt results in reclaimed asphalt, suitable and ready to be used as constituent material for asphalt, after being tested, assessed and classified according to BS EN 13108-8. Reclaimed asphalt (RA) may be used as a constituent material for bituminous mixtures manufactured in an asphalt plant, in accordance with the specifications for those mixtures. The use of recycling in asphalt production makes it necessary to specify reclaimed asphalt as a constituent material in a way similar to that of aggregates and binders.

BS EN 13108-8 contains requirements for reclaimed asphalt with respect to binder and aggregate properties and foreign matter that apply in all cases of usage of reclaimed asphalt.
Additionally, BS EN 13108-8 indicates which properties of the reclaimed asphalt and its constituent materials need to be declared and documented if a description of a feedstock is necessary.

BS EN 13108-8 The particle size and properties of the aggregate, the binder content, the properties of the binder and foreign matter in the reclaimed asphalt are relevant to the quality of the product, i.e. the fresh asphalt in which it is mixed. The level of homogeneity of the material in practice determines the maximum amount of reclaimed asphalt that may be used.

What is changed since the last update?

BS EN 13108-8:2016 supersedes BS EN 13108-8:2005 which is withdrawn. BS EN 13108-8:2016 includes some technical changes with respect to BS EN 13108-8:2005. These include:

Update for consistency with other parts of BS EN 13108 series and CPR requirements
Introduction of term “site-won asphalt” and differentiation from feedstock
Note exclusion of contaminated materials
New table for minimum test frequencies for feedstock
Enhanced requirements for traceability of delivered feedstock

BS EN 13108-8:2016

Bituminous mixtures. Material specifications - Reclaimed asphalt

Current

Published:

30 Jun 2016