This European Standard specifies test procedures for determiningThe resilient and permanent behaviour of unbound mixtures under conditions that simulateThe physical conditions and stress states of these materials in pavement layers subjected to moving loads.These procedures allow to determine mechanical properties that can be used for performance ranking of materials and for calculatingThe structural responses of pavement structures.The test is applicable to cylindrical specimens of unbound mixtures prepared by laboratory compaction, with an absolute maximum particle size smaller than one fifth of the specimen diameter.ForThe loading of the specimen, two methods are provided :— Method A:The Variable Confining Pressure method in whichThe cell pressure is cycled in phase withThe axial load.— Method B:The Constant Confining Pressure method in which only cyclic axial loading and constant confining pressure are performed
EN 13286-7:2004 history
2004EN 13286-7:2004 Unbound and hydraulically bound mixtures - Part 7: Cyclic load triaxial test for unbound mixtures