By L. Francken
The purpose of the reports awarded during this record is the implementation of rational ideas and checking out strategies for the layout and manufacture of bituminous fabrics for functions in pavement development. sensible try approaches are instructed for binder evaluate, combine layout and function evaluate of bituminous fabrics. the 3 major subject matters addressed are binder checking out, combine layout and mechanical checking out of combinations. every one is tested via interlaboratory exams and there's a literary overview of current practices and techniques for the creation of polymer transformed binders, combination layout and the mechanical homes of combos.
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Extra resources for Bituminous Binders and Mixes (Rilem Report)
ISBN 0419 22870 5 52 LUMINARI AND FIDATO The mix design process consists of a series of procedures and/or tests followed by or executed to select aggregates, aggregate gradation, binder type and content, additive/modifier type and content to produce a bitumen-aggregate mix that satisfies specific requirements. It should be noted that the purpose of mix design is to formulate a mix of aggregates and binder which is both the most economical and at the same time has: • sufficient binder to ensure durability; • sufficient percentage of voids in the mineral aggregate, so as to minimize post-compaction by traffic, without giving rise to bleeding or flashing, loss of stability or harmful effects due to the action of air and water; • sufficient workability to permit laying the mix without risk of segregation; • sufficient performance characteristics over the service life of the pavement.
YU1: (50% acceptance on both equipments). In the low temperature range, as already mentioned, it must be noticed that all the outlying results are on the low side. Most of the tests carried out in the shear mode (DK1, El, F6, GB1, I1 and YU1d) give too low values. With the exception of S1 which remains with realistic measurements down to −25°C, it appears that the shear mode is not suitable below a given temperature. This limiting temperature is depending on the test arrangement adopted. For each set of values corresponding to a given laboratory, the difference with respect to Van der Poel’s values increases when the temperature decreases.
27, pp. 494–512. , Cogneau P. and Zwijsen M. (1991): Method for the evaluation of bitumens based on the characteristics of bitumen-polymer mixes, Proceedings of International Symposium on Chemistry of Bitumen, Rome, Vol. II, pp. 969–999. Ma. and Peralta X. (1993): Correlation between the fractionation of bitumen according to the methods ASTM D 4124 and Iatroscan, Procedings of 5th Eurobitume Congress, Stockholm, Vol. IA, pp. 203–208. J. B. L. (1992): Simple but effective, Highways, May, pp. 26–28.
Bituminous Binders and Mixes (Rilem Report) by L. Francken