Bituminous mixtures. Test methods - Conditioning to address oxidative ageing
Bituminous mixtures. Test methods - Conditioning to address oxidative ageing
What is PD CEN/TS 12697-52 - Bituminous mixtures in terms of oxidative ageing about?
PD CEN/TS 12697-52 specifies two sets of procedures for conditioning bituminous mixtures in terms of oxidative ageing. Procedures A.1 and A.2 can be applied on loose bituminous mixture before compaction of specimens, procedures B.1 and B.2 on compacted specimens. Material conditioned by PD CEN/TS 12697-52 can be used for further testing to assess the effect of oxidative ageing on characteristics of bituminous mixtures and thus on their durability and recyclability. Alternatively, the binder can be extracted from a conditioned mixture to assess the effect of oxidative ageing on binder characteristics cs taking into account the potential effects of mineral aggregates on ageing. Note: PD CEN/TS 12697-52 is applicable to bituminous mixtures manufactured in the laboratory or in a mixing plant. Procedures B.1 and B.2 is applicable to specimens from laboratory production or samples taken from the field.
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