DIN EN 12697-11-2005 沥青混合物.热混沥青用试验方法.第11部分:集料和沥青间亲和力的测定
Bituminous mixtures - Test methods for hot mix asphalt - Part 11: Determination of the affinity between aggregate and bitumen; English version of DIN EN 12697-11:2005
This European Standard specifies procedures for the determination of the affinity between aggregate and
bitumen and its influence on the susceptibility of the combination to stripping. This property is intended to be
of assistance to the designer for mixture design rather than as a type test. Susceptibility to stripping, as
determined by these procedures, is an indirect measure of the power of a binder to adhere to various aggregates,
or of various binders to adhere to a given aggregate. The procedures can also be used to evaluate the effect of
moisture on a given aggregate-binder combination with or without adhesion agents including liquids, such as
amines, and fillers, such as hydrated lime or cement.
In the rolling bottle method, the affinity is expressed by visual registration of the degree of bitumen coverage
on uncompacted bitumen-coated mineral aggregate particles after influence of mechanical stirring action in
the presence of water.
NOTE 1 The rolling bottle test is a simple but subjective test and suitable for routine testing. It is net appropriate for
aggregates that are highly abrasive.
In the static test method, the affinity is expressed by visual registration of the degree of bitumen coverage on
uncompacted bitumen-coated mineral aggregate particles after storage in water.
NOTE 2 The static test is a simple but subjective test that is less precise generally but can cope with high PSV-
aggregates.
In the boiling water stripping test method, the affinity is expressed by determining the degree of bitumen-
coverage on uncompacted bitumen-coated aggregate after immersion in boiling water under specified
conditions.
NOTE 3 The boiling water stripping test is an objective test and has a high precision. However, it is a more specialist
test because it requires greater skill of the operatives and uses chemicals as reagent. The latter point may also imply extra
health and safety considerations.
NOTE 4 The boiling water stripping test procedure can be used for any binder-aggregate combinations in which the
mineral aggregate is calcareous, silico-calcareous or siliceous by nature.