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Abstract
In continuation of a previous ring analysis in which six different weathering tests on modified bitumen products were compared, two durability tests as proposed by CEN TC 116 WG 3 "Durability" were studied. This paper deals with the first phase of the investigation, set up in cooperation between the BDD (German Association of Roofing Manufacturers) and BDA, with the main objective to see if the proposed aging methods are useful in distinguishing "bad" mixtures from "good" mixtures. Several comparitive tests, such as ring and ball, penetration, viscosity, permanent set and low-temperature flexibility, were executed on fresh laboratory-made mixtures and also on samples that, for this first phase of the test program, were aged during a relatively short period.
In continuation of a previous ring analysis in which six different weathering tests on modified bitumen products were compared, two durability tests as proposed by CEN TC 116 WG 3 "Durability" were studied. This paper deals with the first phase of the investigation, set up in cooperation between the BDD (German Association of Roofing Manufacturers) and BDA, with the main objective to see if the proposed aging methods are useful in distinguishing "bad" mixtures from "good" mixtures. Several comparitive tests, such as ring and ball, penetration, viscosity, permanent set and low-temperature flexibility, were executed on fresh laboratory-made mixtures and also on samples that, for this first phase of the test program, were aged during a relatively short period.
Date
0/1989
0/1989
Author(s)
Nico Hendriks; Dakadvies Buro;
Nico Hendriks; Dakadvies Buro;
Page(s)
86-97
86-97
Keyword(s)
CEN TC 116 WG 3; Ring & Ball; durability test; modified bitumen; VDD; BDA; penetration; viscosity; permanent set; flexibility
CEN TC 116 WG 3; Ring & Ball; durability test; modified bitumen; VDD; BDA; penetration; viscosity; permanent set; flexibility