EN 12697-26:2012

Foreword
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Principle
5 Sample preparation
6 Checking of the testing equipment
7 Test methods
8 Temperatures
9 Expression of results
10 Test report
11 Precision
Annex A (normative) - Two point bending test on
        trapezoidal specimens (2PB-TR) or on prismatic
        specimens (2PB-PR)
Annex B (normative) - Three point bending test on
        prismatic specimens (3PB-PR) and four point
        bending test on prismatic specimens (4PB-PR)
Annex C (normative) - Test applying indirect tension to
        cylindrical specimens (IT-CY)
Annex D (normative) - Direct tension-compression test
        on cylindrical specimens (DTC-CY)
Annex E (normative) - Test applying direct tension to
        cylindrical specimens (DT-CY) or to prismatic
        specimens (DT-PR)
Annex F (normative) - Test applying Cyclic indirect
        tension to cylindrical specimens (CIT-CY)
Annex G (informative) - Derivation of the master curve

This European Standard specifies the methods for characterising the stiffness of bituminous mixtures by alternative tests, including bending tests and direct and indirect tensile tests. The tests are performed on compacted bituminous material under a sinusoidal loading or other controlled loading, using different types of specimens and supports.The procedure is used to rank bituminous mixtures on the basis of stiffness, as a guide to relative performance in the pavement, to obtain data for estimating the structural behaviour in the road and to judge test data according to specifications for bituminous mixtures.As this standard does not impose a particular type of testing device the precise choice of the test conditions depends on the possibilities and the working range of the used device.For the choice of specific test conditions, the requirements of the product standards for bituminous mixtures should be respected.The applicability of this document is described in the product standards for bituminous mixtures.