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An Analytical Approach to Evaluate the Performance of Cold Recycled Asphalt Mixtures



Title: An Analytical Approach to Evaluate the Performance of Cold Recycled Asphalt Mixtures
Author(s): Giuliani
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: 13 - 22
Total Pages: 10
Nb references: 5
Language: English


Abstract: Road construction is a field of civil engineering, more than others, where is potentially
possible to put into practice an effective policy of environmental protection, including
significant technical-economic benefits.
Considering just the huge quantity of materials employed in embankments and pavements
constructions, it should be considered the opportunity to recycle waste products from
industrial process or from demolition of civil buildings, which would be otherwise defined
"waste". According to this purpose, already existing from several years, in-place and in-plant
recycling of road pavements is a very interesting technique. Indeed, it is one of the rare
example of cheap regeneration of a structure, without implying charges of transport and
disposal of milled material out of the road plant.The demolition product of bituminous layers of aged road pavements in the form of milled
particles, usually called RAP (Reclaimed Asphalt Pavement), is re-employed, at present, to
realize new base courses or binder courses of asphalt pavements by means of a cold
stabilisation process, using cement or bituminous emulsion.The state of practice of in-place cold recycling is extremely active in Europe, particularly incountries where there are fair climatic conditions (i.e. Italy and Spain). Instead the mix design
has not been perfected yet and many design aspects have to be quite defined (RAP grading
curve, wetting condition, binder quantity and compactive effort), especially in bituminous
emulsion stabilisation.Scientific research contributions are essential to fill the current distance between practice in
construction and design. With this purpose, the present memory summarizes the results of an
experimental study about performances of cold recycled asphalt mixtures with bituminous
emulsion and cement, highlighting the specificity of interaction between RAP and binding
phase.


Online publication: 2004-09-29
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143756.002