publication . Article . 2014

The development of polyurethane modified bitumen emulsions for cold mix applications

V. Carrera; A. A. Cuadri; M. García-Morales; P. Partal;
Open Access English
  • Published: 02 Sep 2014
  • Publisher: Springer Verlag
  • Country: Spain
Abstract
Bitumen emulsions stand for an alternative paving practice to the traditional hot-mix asphalts. In addition, modified bitumen emulsions show a better performance than unmodified ones. This work studies the feasibility of obtaining polyurethane modified bitumen emulsions, in which an isocyanate-functionalized polyol constitutes the bitumen modifier (in varying concentration from 1 to 4 wt.%). Storage stability and high in-service performance are evaluated by means of evolution of droplet size distribution (DSD) and rheology tests, respectively. Regarding the emulsion stability, the key factor seems to be the bitumen modifier concentration used to prepare the modi...
Subjects
free text keywords: Bitumen, Emulsion, Foam, Isocyanate, Polyurethane, Product design, Polyol, chemistry.chemical_classification, chemistry, Materials science, Asphalt, chemistry.chemical_compound, Composite material, Rheology, Emulsified fuel, Polymer
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publication . Article . 2014

The development of polyurethane modified bitumen emulsions for cold mix applications

V. Carrera; A. A. Cuadri; M. García-Morales; P. Partal;