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dc.contributor.authorCuadri Vega, Antonio Abad 
dc.contributor.authorPartal López, Pedro 
dc.contributor.authorNavarro Domínguez, Francisco Javier 
dc.contributor.authorGarcía Morales, Moisés 
dc.contributor.authorGallegos Montes, Críspulo 
dc.date.accessioned2016-05-17T07:19:03Z
dc.date.available2016-05-17T07:19:03Z
dc.date.issued2011
dc.identifier.citationCuadri Vega, A.A., Partal López, P., Navarro Domínguez, F.J., García Morales. M., Gallegos Montes, C.: "Bitumen chemical modification by thiourea dioxide". Fuel. 2011, vol. 90, n. 6, págs. 2294–2300, (2011). DOI: 10.1016/j.fuel.2011.02.035en_US
dc.identifier.issn0016-2361
dc.identifier.issn1873-7153 (electrónico)
dc.identifier.urihttp://hdl.handle.net/10272/12098
dc.description.abstractThis work evaluates a novel bitumen modification through the use of a chemical agent, thiourea dioxide, substance which has been traditionally used as a reducing agent. Thermogravimetric analysis demonstrated the formation of new chemical compounds, most probably originated through reactions between products from thiourea dioxide thermal decomposition and some highly polar bitumen molecules. As a result of these reactions, which continues even after 60 days, bitumen permanent deformation resistance at high temperature is enhanced, as indicated by a significant increase in its viscosity and elastic features. On the other hand, thiourea dioxide addition produces changes in the bitumen colloidal nature, which improve its flexibility at low in-service temperatures, and consequently its resistance to thermal cracking under loading. In fact, dynamic bending tests indicated a remarkable decrease in the value of binder glass transition temperature, which was further corroborated by differential scanning calorimetry. As a conclusion, thiourea dioxide can be seen as a promising modifiying agent, which can extend the in-service temperature range at which bitumen would present a satisfactory performance.en_US
dc.description.sponsorshipThis work is part of a research project sponsored by a MEC-FEDER Programme (Research Project MAT2007-61460) and by a Junta de Andalucía Programme (TEP6689). The authors gratefully acknowledge its financial support. A.A.Cuadri also acknowledges the concession of MEC FPU research fellowship (AP2008-01419).en_US
dc.description.sponsorshipThis work is part of a research project sponsored by a MEC - FEDER P rogramme (Research Project MAT2 007 - 61460) and by a Junta de Andaluc í a Programme (TEP6689). The authors gratefully acknowledge its financial support. A.A.Cuadri also acknowledges the concession of MEC FPU research fellowship (AP2008 - 01419).
dc.description.sponsorshipThis work is part of a research project sponsored by a MEC-FEDER Programme (Research Project MAT2007-61460) and by a Junta de Andalucia Programme (TEP6689). The authors gratefully acknowledge its financial support. A.A. Cuadri also acknowledges the concession of MEC FPU research fellowship (AP2008-01419).
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.otherBitumenen_US
dc.subject.otherThiourea dioxideen_US
dc.subject.otherModificationen_US
dc.subject.otherRheologyen_US
dc.subject.otherProduct designen_US
dc.titleBitumen chemical modification by thiourea dioxideen_US
dc.typeinfo:eu-repo/semantics/articleen_US
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.fuel.2011.02.035
dc.identifier.doi10.1016/j.fuel.2011.02.035
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessen_US
dc.relation.projectIDinfo:eu-repo/grantAggreement/MEC [MAT2007-61460]
dc.relation.projectIDinfo:eu-repo/grantAggreement/Junta de Andalucia Programme [TEP6689]
dc.relation.projectIDinfo:eu-repo/grantAggreement/MEC FPU [AP2008-01419]


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