RT info:eu-repo/semantics/article
T1 Bitumen modified with recycled polyurethane foam for employment in hot mix asphalt
T2 Betún modificado con espuma de poliuretano reciclada para empleo en mezclas bituminosas en caliente
A1 Salas García, Miguel Ángel
A1 Pérez Acebo, Heriberto
A1 Calderón Carpintero, Verónica
A1 Gonzalo Orden, Hernán
K1 Polyurethane foam
K1 Waste product
K1 Bitumen modifier
K1 Hot mix asphalt
K1 Polymer modified bitumen
K1 Espuma de poliuretano
K1 Residuo
K1 Modificador de betún
K1 Mezcla bituminosa en caliente
K1 Betún modificado con polímeros
K1 Ingeniería civil
K1 Civil engineering
K1 Materiales
K1 Materials
K1 Materiales de construcción
K1 Building materials
AB A wide variety of modifiers have been applied to bitumen in order to enhance their properties and performance. Among them,polymers have been mainly used. The aim of this paper is to assess the use of polyurethane foam waste as a bitumen modifier for hotmix asphalts. The polyurethane foam is a by-product of the manufacturing of polyurethane for thermal insulation. From a bitumenwith a penetration grade of 50/70, various samples with percentages of waste material in weight ranging from 1% to 5% wereproduced and tested. Samples with 5% of waste material or more became rough and were refused due to their poor workability. Abituminous mixture with modified bitumen with a 4% of polyurethane was manufactured and compared with a sample with the sameaggregates and original bitumen. Results in Marshall test showed that a mix with polymer modified bitumen yielded improvementsin stability and a lower deformability. This result suggests that the employment of polyurethane foam waste is a promising bitumenmodifier, contributing also to recycle waste materials.
PB Universidad Nacional de Colombia
SN 0120-5609
YR 2018
FD 2018-01
LK http://hdl.handle.net/10259/8931
UL http://hdl.handle.net/10259/8931
LA eng
DS Repositorio Institucional de la Universidad de Burgos
RD 16-may-2024