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Browsing by Author "Cuadri Vega, Antonio Abad"
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A Mathcad‐based educational experience to address the design of nonisothermal plug flow reactors
Cuadri Vega, Antonio Abad
; Gallego Calvo, Rocío; Martín Alfonso, María José; Delgado Sánchez, Clara; Cortés Triviño, Esperanza; Tenorio Alfonso, Adrián; Borrero López, Antonio María; Ortega Bravo, Francisco José (Wiley, 2022)
Mathcad is a simple-to-use and intuitive mathematical software that helps students to minimize the mathematical difficulties involved in solving engineering problems. The design of nonisothermal plug flow reactors (PFR) ... -
Ageing Effects on a Softened Bitumen by the Addition of DSA (Dodecenyl Succinic Anhydride)
Ortega Bravo, Francisco José; Cuadri Vega, Antonio Abad; Partal López, Pedro; Navarro Domínguez, Francisco Javier (MDPI, 2022-06)
The softening of aged bitumen is necessary for a successful asphalt rejuvenation in road recycling operations. Thus, this study proposes a novel and successful approach by using Dodecenyl Succinic Anhydride (DSA), a ... -
Bioethanol Production and Alkali Pulp Processes as Sources of Anionic Lignin Surfactants
Álvarez Barajas, Rodrigo; Cuadri Vega, Antonio Abad; Navarro Domínguez, Francisco Javier; Martínez Boza, Francisco José (MDPI, 2021)
Lignin is an abundant biopolymer with potential value-added applications that depend on biomass source and fractioning method. This work explores the use as emulsifiers of three native lignin-rich product coming from ... -
Bitumen chemical modification by thiourea dioxide
Cuadri Vega, Antonio Abad; Partal López, Pedro; Navarro Domínguez, Francisco Javier; García Morales, Moisés; Gallegos Montes, Críspulo (Elsevier, 2011)
This 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 ... -
Bitumen modifiers for reduced temperature asphalts: a comparative analysis between three polymeric and non-polymeric additives
Cuadri Vega, Antonio Abad; Carrera Páez, Virginia; Izquierdo Rodríguez, María Ángeles; García Morales, Moisés; Navarro Domínguez, Francisco Javier (Elsevier, 2014)
This study presents three bitumen modifiers which may find successful application in the fabrication of binders for warm mix asphalt in the paving industry. In that sense, two non-polymeric additives, thiourea and thiourea ... -
Chemically modified bitumens with enhanced rheology and adhesion properties to siliceous aggregates
Cuadri Vega, Antonio Abad; Partal López, Pedro; Ahmad, Naveed; Grenfell, James; Airey, Gordon (Elsevier, 2015)
Moisture damage is one of the major premature failures that worsens the performance and shortens service life of pavements. This research assesses the effect that two chemical modifiers (thiourea and an isocyanate-functionalized ... -
The development of polyurethane modified bitumen emulsions for cold mix applications
Carrera Páez, Virginia; Cuadri Vega, Antonio Abad; García Morales, Moisés; Partal López, Pedro (Springer Verlag, 2015)
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 ... -
Effect of transesterification degree and post-treatment on the in-service performance of NCO-functionalized vegetable oil bituminous products
Cuadri Vega, Antonio Abad; García Morales, Moisés; Navarro Domínguez, Francisco Javier; Partal López, Pedro (Elsevier, 2014)
The bitumen modification through polyurethane prepolymers presents significant benefits for the manufacture of bituminous products for the paving industry. In this sense, this work explores the use, as bitumen modifier, ... -
End-performance evaluation of thiourea-modified bituminous binders through viscous flow and linear viscoelasticy testing
Cuadri Vega, Antonio Abad; García Morales, Moisés; Navarro Domínguez, Francisco Javier; Airey, Gordon; Partal López, Pedro (Spinger Verlag, 2013)
Straight-run bitumens are no longer suitable in new asphalt mixtures. Consequently, the use of modified bitumens has become more important. In order to both improve binders mechanical properties and prevent it from phase ... -
Enhancing the viscoelastic properties of bituminous binders via thiourea-modification
Cuadri Vega, Antonio Abad; García Morales, Moisés; Navarro Domínguez, Francisco Javier; Partal López, Pedro (Elsevier, 2012)
Although added in a very low concentration, bitumen controls the final properties and performance of the resulting asphalt mixture. As an alternative to classic bitumen modification with polymers, we herein propose the use ... -
Formulation and processing of novel non-aqueous polyethylene glycol-in-silicone oil (o/o) phase change emulsions
Delgado Sánchez, Clara; Cuadri Vega, Antonio Abad; Navarro Domínguez, Francisco Javier; Partal López, Pedro (Elsevier, 2021-03)
Oil-in-oil phase change emulsions, composed of phase change materials (PCMs) dispersed in a continuous oily medium, have never been reported in the literature. The current study involves the formulation, stabilisation ... -
Hybrid Rubberised Bitumen from Reactive and Non-Reactive Ethylene Copolymers
Senise, Simona; Carrera Páez, Virginia; Cuadri Vega, Antonio Abad; Navarro Domínguez, Francisco Javier; Partal López, Pedro (MDPI, 2019-11)
Hybrid modification is a relatively new concept of incorporating two or more polymeric modifiers of different nature to a bitumen, in order to take advantage of their complementary features. Aiming to this, in this paper, ... -
Influence of polymer melting point and melt flow index on the performance of ethylene-vinyl-acetate modified bitumen for reduced-temperature application
Yuliestyan, Avido; Cuadri Vega, Antonio Abad; García Morales, Moisés; Partal López, Pedro (Elsevier, 2016)
The paving industry is currently demanding polymer modified bitumens (PMBs) with enhanced in-service performance and low enough viscosity at lower application temperatures. With this aim, this study focuses on the use of ... -
Influence of the prepolymer molecular weight and free isocyanate content on the rheology of polyurethane modified bitumens
Carrera Páez, Virginia; Cuadri Vega, Antonio Abad; García Morales, Moisés; Partal López, Pedro (Elsevier, 2014)
Isocyanate-based modification is lately gaining acceptance as a successful way to give added value to bitumen, a crude oil refining by-product. In order to study the influence of prepolymer type on the rheological properties ... -
Isocyanate-functionalized castor oil as a novel bitumen modifier
Cuadri Vega, Antonio Abad; García Morales, Moisés; Navarro Domínguez, Francisco Javier; Partal López, Pedro (Elsevier, 2013)
The use of biomaterials from renewable sources in the synthesis of polyurethane-derived polymers is lately receiving great attention from social, environmental and economic standpoints. In this work, prepolymers having ... -
Phosphogypsum as additive 1 for foamed bitumen 2 manufacturing used in asphalt paving
Cuadri Vega, Antonio Abad; Pérez Moreno, Silvia María; Altamar, C.L.; Navarro Domínguez, Francisco Javier; Bolívar Raya, Juan Pedro (Elsevier, 2021-02)
The aim of this work was to use phosphogypsum (FY) waste in a sustainable paving practice involving the production of FY-foamed bitumen for road applications. For this proposal, three FY types coming from different fertilizer ... -
Physico-chemical modification of asphalt bitumens by reactive agents
Cuadri Vega, Antonio Abad (Universidad de Huelva, 2013)
Bitumen, a by-product from crude oil distillation, has long been used in numerous engineering applications that range from the construction of road pavements to waterproof membranes for the roofing industry. On account of ... -
Processing of bitumens modified by a bio-oil-derived polyurethane
Cuadri Vega, Antonio Abad; García Morales, Moisés; Navarro Domínguez, Francisco Javier; Partal López, Pedro (Elsevier, 2014)
Castor oil (CO) functionalized by isocyanate groups (–NCO) is proposed as a novel bio-based reactive polyurethane (PU) for bitumen modification. This work presents a comparative analysis conducted on blends of bitumen and ... -
Promising Chalcogenide Hybrid Copolymers for Sustainable Applications as Bio-lubricants and Metal Adsorbents
Cubero Cardoso, Juan; Cuadri Vega, Antonio Abad; González Fermoso, Fernando; Martín Alfonso, José Enrique; Urbano Baena, Juan (American Chemical Society, 2022)
Inverse vulcanization has emerged as a reaction to achieve hybrid inorganic–organic polymeric materials, which allows us to use the high amount of sulfur produced during refining crude oil as a raw material. In this study, ... -
Rheological behaviour of polymer-modified bituminous mastics : a comparative analysis between physical and chemical modification
Shivokhin, Maxim; García Morales, Moisés; Partal López, Pedro; Cuadri Vega, Antonio Abad; Gallegos Montes, Críspulo (Elsevier, 2012)
Mastic, a bitumen/filler blend which naturally forms when bitumen is mixed with aggregates is the actual product used to bind coarse mineral particles in the asphalt mixtures. As a result, the characterisation of mastics ...
