Characterisation and Design of Hot-Recycled Bituminous Mixtures

Title: Characterisation and Design of Hot-Recycled Bituminous Mixtures
Author(s): Recasens
Paper category : conference
Book title: International RILEM Conference on the Use of Recycled Materials in Building and Structures
Editor(s): E. Vázquez, Ch. F. Hendriks and G.M.T. Janssen
Print-ISBN: 2-912143-52-7
e-ISBN: 2912143756
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 23 - 30
Total Pages: 8
Nb references: 6
Language: English

Abstract: The procedure usually used for the design of conventional hot bituminous mixtures is the
Marshall test. Although this method is a feasible procedure to design hot recycled bituminous
mixtures, it is important to analyse the effect of the new bitumen added to the mixture. For
this reason two new procedures are proposed: the UCL method and the BTD test.
The UCL method allows the assessment of the cohesion that the mastic provides to a
standard mixture, measuring the resistance to abrasion by means of the Cántabro test.
By means of the BTD test it is possible to evaluate several parameters: tenacity,
deformability and breaking energy of the mixtures, all these properties being the most critical
in the aged mixtures.By combining these three methodologies, that evaluate different properties, hot recycled
bituminous mixtures can be designed which have a similar performance to conventional
mixtures.

Online publication: 2004-09-29
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143756.003