DIN EN 14770-2006 沥青和沥青粘合剂.复合剪切模量和相位角的测定.动态剪切流变仪(DSR)
Bitumen and bituminous binders - Determination of complex shear modulus and phase angle - Dynamic Shear Rheometer (DSR); English version of DIN EN 14770:2006
This European standard covers a number of methods using a dynamic shear rheometer (DSR) capable of measuring the rheological properties of bitumen and bituminous binders. The procedure involves determining the complex shear modulus and phase angle of binders over a range of test frequencies and test temperatures when tested in oscillatory shear. From the test, the norm of the complex shear modulus, IG; I, and its phase angle, d, at a given temperature and frequency can be calculated, as well as their components G', G'', J' and J''. This method is applicable to unaged, aged and recovered bituminous binders, cut backs and bituminous binders recovered from emulsions. It is not applicable where the rheometer cannot control both plates at the test temperature. This method is also applicable to modified binders.