Bitumen and bituminous binders - Determination of the resistance to hardening under influence of heat and air - Part 1: RTFOT method; German version FprEN 12607-1:2024
Abstract
This document specifies a method for measuring the combined effects of heat and air on a thin moving film of bitumen or bituminous binder simulating the hardening which most bituminous binders undergo during mixing in an asphalt mixing plant. The method described is not applicable to some modified binders or to those where the viscosity does not allow to provide a moving film. In some cases the sample may creep out of the glass container and flow on the heating elements of the oven during testing. The method is suitable for other bituminous binders than paving grade bitumen, but the reference temperature might give excessive hardening that do not resemble real conditions during mixing at the plant. The method may not represent the hardening that occurs during mixing of warm mix binders. The method is referred to as RTFOT, i.e. Rolling Thin Film Oven Test. If there is a likelihood of volatile components being present in a binder, this procedure should not be used. It should not be used for cutback bitumen or bituminous emulsions before these products have been stabilized, e.g. in accordance with EN 13074-2.
Begin
2022-06-20
WI
00336210
Planned document number
DIN EN 12607-1
Project number
06235977
Responsible national committee
NA 062-03-32 AA - Bitumen; test methods and specifications of binders
Responsible european committee
CEN/TC 336/WG 1 - Bituminous binders for paving
draft standard
Bitumen and bituminous binders - Determination of the resistance to hardening under influence of heat and air - Part 1: RTFOT method; German and English version prEN 12607-1:2023
2023-04
Order from DIN Media
