Sustainable Low-Temperature Asphalt Mixtures with Marginal Porous Volcanic Aggregates and Crumb Rubber Modified Bitumen

Franesqui García, Miguel Ángel and Yepes Temiño, Jorge and García González, Cándida and Gallego Medina, Juan (2019). Sustainable Low-Temperature Asphalt Mixtures with Marginal Porous Volcanic Aggregates and Crumb Rubber Modified Bitumen. "Journal of Cleaner Production", v. 207 ; pp. 44-56. ISSN 0959-6526. https://doi.org/10.1016/j.jclepro.2018.09.219.

Description

Title: Sustainable Low-Temperature Asphalt Mixtures with Marginal Porous Volcanic Aggregates and Crumb Rubber Modified Bitumen
Author/s:
  • Franesqui García, Miguel Ángel
  • Yepes Temiño, Jorge
  • García González, Cándida
  • Gallego Medina, Juan
Item Type: Article
Título de Revista/Publicación: Journal of Cleaner Production
Date: 10 January 2019
ISSN: 0959-6526
Volume: 207
Subjects:
Freetext Keywords: Low-Temperature Mixture, Warm Mix Asphalt (WMA), Volcanic Aggregate, Vesicular Basalt, Asphalt-Rubber (AR), Reclaimed Tyre Rubber, End-of-Life Tyre (ELT), Surfactant Additive
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ingeniería Civil: Transporte y Territorio
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

This study presents the results of the principal engineering properties of asphalt-rubber warm mixtures (AR-WMA) with waste crumb rubber from used tyres and highly-vesiculated basalt of scoriaceous nature, also considered a residual or marginal aggregate according to standard specifications. The temperature reduction was carried out using a liquid surfactant chemical additive, of easier dosage than granular solid products and in a reduced proportion (0.5% by weight of bitumen). The results were compared both to asphalt-rubber hot mixtures and to hot mixtures with conventional bitumen, all of them with the same aggregates. With the surfactant additive it is possible to lower the production temperatures by up to a maximum of 5–10 °C complying with all the technical specifications for surface courses of pavements, and by up to 25–30 °C for inferior layers or in case of more lenient requirements. Even in the first case, it may compensate for the increase of energy and emissions due to the higher viscosity of the asphalt-rubber binder. With a temperature reduction of 40 °C, certain properties such as the moisture damage strength ratio, rutting resistance and stability were even superior compared to conventional mixtures without rubber (produced at 170 °C). The results obtained may be extrapolated to other volcanic regions both insular and continental areas where this type of aggregates are commonly found and with rigorous environmental requirements.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainBIA2013-47987-C3-3-RVolcanic BC-WarmUnspecifiedSustainable development and production of warm-mix asphalt using recycled crumb rubber from end-of-life tyres and volcanic aggregates from the Canary Islands
Government of SpainBIA2017-86253-C2-2-RMW-VolcAsphaltUnspecifiedSustainable self-healable perpetual asphalt pavements with volcanic aggre-gates using microwaves and additions of metallic wastes and nonoparticles

More information

Item ID: 63930
DC Identifier: http://oa.upm.es/63930/
OAI Identifier: oai:oa.upm.es:63930
DOI: 10.1016/j.jclepro.2018.09.219
Official URL: https://www.sciencedirect.com/science/article/pii/S0959652618329524
Deposited by: Memoria Investigacion
Deposited on: 21 Sep 2020 15:19
Last Modified: 10 Jan 2021 23:30
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