prEN 12697-8

Bituminous mixtures - Test methods - Part 8: Determination of void characteristics of bituminous specimens prEN 12697-8

Scope

This European Standard describes a procedure for calculating volumetric characteristics of a compacted bituminous specimen: the air voids content (Vm) and the voids content in the mineral aggregate filed with binder (VFB) and the voids content in the mineral aggregate filed with binder and additives (VFBad) for the case of mixtures containing additives in their composition.
NOTE For mixtures with water in their composition (e.g. mixtures produced with bituminous emulsion or foamed bitumen) the volumetric characteristics determined according to the present standard refers to “dry” bituminous specimens (i.e. compacted mixtures whose voids are exclusively filled with air).
The method is suitable for specimens which are laboratory compacted or specimens cut from the pavement after placement and compacting, either by coring or sawing.
These volumetric characteristics can be used as mix design criteria or as parameters for evaluating the mixture after placing and compacting in the road.