DIN EN 12697-12-2008 沥青混合料.热混沥青的试验方法.第12部分:含沥青试样的水敏感性的测定
Bituminous mixtures - Test methods for hot mix asphalt - Part 12: Determination of the water sensitivity of bituminous specimens; English version of DIN EN 12697-12:2008-10
This European Standard describes three test methods for determining the effect of saturation and accelerated
water conditioning.
These methods can be used to evaluate the effect of moisture with or without anti-stripping additives including
liquids, such as amines, and fillers, such as hydrated lime or cement:
-- method A uses the indirect tensile strength of cylindrical specimens of bituminous mixtures;
-- method B uses the compression strength of cylindrical specimens of bituminous mixtures;
-- method C defines the bonding value of soft asphalt mixtures 1 h after mixing, where the bonding of
bitumen and aggregate can be equated to a bonding value.
Method A and method B give the same result on average. However, if the slenderness of the specimens is
less than 0,5, method B is not suitable.
Method C is suitable for soft asphalt mixtures with bitumen of viscosity at 60 ℃ of 4000 mm2/s or less, for
which methods A and B are not suitable.
NOTE Methods A and B are suitable for soft asphalt mixtures with bitumen of viscosity at 60 ℃greater than
4000 mm2/s.