EN 12697-22:2003+A1:2007

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Principle
6 Apparatus
   6.1 Large size devices
   6.2 Extra large Devices
   6.3 Small size devices
   6.4 Small-size devices for use with cores
7 Sampling and sample preparation
   7.1 Sampling and manufacture
   7.2 Thickness and surface regularity
   7.3 Transport and storage of unmounted specimens
   7.4 Sample preparation
8 Procedure for carrying out a single measurement
   8.1 Large size devices
   8.2 Extra-large size device
   8.3 Small size devices
9 Calculation and expression of results
   9.1 Large size devices
   9.2 Extra-large size device
   9.3 Small size devices
10 Test report
   10.1 Obligatory information
   10.2 Complementary information
11 Precision
   11.1 General
   11.2 Laboratory prepared samples, proportional rut depth,
        large size devices
   11.3 Samples cored from a pavement and laboratory prepared
        samples, wheel-tracking rate, small-size devices,
        conditioning in air
Bibliography

This European Standard describes test methods for determining the susceptibility of bituminous materials to deform under load. The test is applicable to mixtures with upper sieve size less than or equal to 32 mm.The tests are applicable to specimens that have either been manufactured in a laboratory or cut from a pavement; test specimens are held in a mould with their surface flush with the upper edge of the mould.The susceptibility of bituminous materials to deform is assessed by the rut formed by repeated passes of a loaded wheel at constant temperature. Three alternative types of device can be used according to this standard: large-size devices, extra large-size devices and small-size devices. With large-size devices and extra large-size devices, the specimens are conditioned in air during testing. With small-size devices, specimens are conditioned, in either air or water.NOTELarge-size and extra large-size devices are not suitable for use with cylindrical cores.