RO
SR EN 12697-11:2020
Bituminous mixtures - Test methods - Part 11: Determination of the affinity between aggregate and bitumen
This document 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 not appropriate for aggregates that are hig
Status :
Valid
Approval date : 4/30/2020
Number of pages : 28
ICS : 93.080.20 Road construction materials
Technical Committee : 187 - Roads
- Replaces SR EN 12697-11:2012
- Normative reference SR EN 58:2012
- Normative reference SR EN 1426:2015
- Normative reference SR EN 12697-2+A1:2019
- Normative reference SR EN 12697-35:2016