Víctor Revilla-Cuesta

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Verified

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• Ph.D.
• Professor (Assistant) at University of Burgos

The use of different types of waste in the manufacture of concrete is increasingly common, due to unabating concerns over climate change and sustainability in the construction sector. It is now widely accepted that the optimal behavior of vibrated concrete produced with the addition of certain wastes can rival the behavior of conventional products....

Recycled Concrete Aggregate (RCA) has greater elasticity than natural aggregate, due to the presence of adhered hydrated mortar in the coarse fraction, and mortar particles in the fine fraction. To evaluate this aspect under temperature variations, four Self-Compacting Concretes (SCC) made with 100 % coarse and/or fine RCA were subjected to cyclica...

Both the in-fresh behavior (slump flow, viscosity, passing ability, resistance to segregation, density and air content) and the mechanical behavior at different curing ages (compressive strength, ultrasonic pulse velocity, hammer rebound test, splitting tensile strength, flexural strength, modulus of elasticity, Poisson coefficient, stress-strain c...

The compressive strength of recycled concrete is acknowledged to be largely conditioned by the incorporation ratio of Recycled Concrete Aggregate (RCA), although that ratio needs to be carefully assessed to optimize the design of structural applications. In this study, Self-Compacting Concrete (SCC) mixes containing 100 % coarse RCA and variable am...

Indirect estimation of compressive strength through non-destructive testing is key to monitoring the strength of structural concretes used in construction and rehabilitation works. However, no models are available to perform this estimation in highly Self-Compacting Concrete (SCC) with Recycled Concrete Aggregate (RCA). To fill this gap, two indire...

Raw-Crushed Wind-Turbine Blade (RCWTB) is yielded through non-selective cutting and crushing of wind-turbine blades, which has a high content of fiberglass-composite fibers. These fibers can potentially increase the energy-absorption capacity and ductility of concrete, and even partially compensate for the higher brittleness because of the addition...

The management of end-of-life wind-turbine blades in the coming years will be necessary, as a clear solution for their recycling is yet to be found due to their complex composition. The suitability of their mechanical recycling is therefore evaluated in this paper, obtaining Raw-Crushed Wind-Turbine Blade (RCWTB) for subsequent incorporation in hig...

The glass fiber-reinforced polymer (GFRP) materials of wind turbine blades can be recovered and recycled by crushing, thereby solving one of the most perplexing problems facing the wind energy sector. This process yields selectively crushed wind turbine blade (SCWTB), a novel waste that is almost exclusively composed of GFRP composite fibers that c...

The pursuit of cement-based materials with enhanced mechanical performance in the construction industry involves formulating numerous mixtures with varied contents of raw materials. However, the scarcity or contamination of these materials demands optimization methods to minimize the number of trials required. Response Surface Methodology (RSM) is...

Wind-turbine blades pose significant disposal challenges in the wind-energy sector due to the increasing demand for wind farms. Therefore, this study researched the revaluation of Raw-Crushed Wind-Turbine Blade (RCWTB), obtained through a non-selective blade crushing process, as a partial substitute for aggregates in Self-Compacting Concrete (SCC)....

The production of raw-crushed wind-turbine blade (RCWTB) and its addition to conventionally designed self-compacting Concrete (SCC) enable us to provide a second life to wind-turbine blades. However, SCC containing RCWTB must show proper fresh behavior, an aspect evaluated in this paper both experimentally and through simulations based on computati...

End-of-life wind-turbine blades undergo non-selective crushing to produce Raw-Crushed Wind-Turbine Blade (RCWTB), which can be recycled as a raw material in concrete. RCWTB contains fibers from glass fiber-reinforced polymer that can add ductility and load-bearing capacity to concrete. Concrete mixes with percentage additions of between 0.0 % and 6...

El desmantelamiento de los parques eólicos en las próximas décadas pone de manifiesto la necesidad de establecer procesos de reciclaje que den salida al material que compone los aerogeneradores. El corte y triturado no selectivo de sus palas da como resultado la obtención de un tipo de residuo denominado Triturado de Pala de Aerogenerador (TPA). Su...

The implementation of circular economy in the wind-energy sector can be promoted by recycling the dismantled wind-turbine blades through crushing to produce fibres. The use of those fibres in self-compacting concrete allows improving its ductility and energy absorption, behavior that is analysed in this research by evaluating its impact ballistic r...

A research experience on the construction of a pilot road section with a porous asphalt mixture incorporating Ladle Furnace Slag (LFS) as fine aggregate in its composition is reported. The pilot section consisted of overlaying this mixture on existing bituminous pavement and was intended to simulate a real application of this sustainable constructi...

The sustainability of the concrete industry is an important issue worldwide. The need for concrete increases steadily, and the natural-resource exploitation and cement manufacturing are speeding up climate change and global warming, among others. The wind-energy sector is also facing sustainability issues, as some of the first-installed wind-turbin...

Concrete is the most environmentally demanding construction material in use worldwide, so evaluating the sustainability performance of concrete is therefore essential. Fiber-Reinforced Concrete (FRC) can diminish the carbon footprint of concrete, being verified by Life Cycle Assessment (LCA). In this systematic review, using the preferred reporting...

Raw-crushed wind-turbine blade (RCWTB), a waste from the recycling of wind-turbine blades, is used as a raw material in concrete in this research. It contains not only fiberglass-composite fibers that bridge the cementitious matrix but also polyurethane and balsa-wood particles. Therefore, concrete containing RCWTB can be notably affected by moistu...

Hardened-property variations A B S T R A C T Analyzing and validating the behavior of sustainable concrete mixes under near-realistic conditions is essential to advance their use. In this research, full-scale high-workability concretes, 0.5 m 3 in volume, containing maximum amounts of sustainable raw materials and their response in cyclic wet-dry t...

El desarrollo de materiales más sostenibles para el sector de la construcción comienza con el uso óptimo de los recursos naturales y el reciclaje adecuado de los residuos producidos al final del ciclo de vida de las infraestructuras. En los próximos años, se desmantelarán muchos parques eólicos, lo que proporcionará grandes cantidades de Triturado...

Una gran cantidad de aerogeneradores tendrán que ser desmantelados y reemplazados en un corto periodo de tiempo, debido a que se están acercando al final de su vida útil. Estos aerogeneradores, en especial sus palas, tendrán que ser reciclados, para evitar los importantes problemas medioambientales que conlleva su transporte a vertedero. Sin embarg...

Introduction Engineering students should develop critical-thinking skills and insist on appropriate performance levels both from themselves and from their colleagues during their training. In doing so, they will adopt critical attitudes toward their own and others’ work. This will help them to successfully perform their future professional work wit...

Wind energy has been making its way into renewable energies until today, experiencing a continuous growth worlwide that leads to the urgent task of reflecting on and solving the issue of the recycling of the wind turbine blades. Their complex composition causes that currently there is no a widely acepted solution for it. This study evaluates the in...

The addition of Ladle Furnace Slag (LFS) to concrete modifies its compressive strength and modulus of elasticity and consequently impacts their relationship. This research evaluated both properties at 28, 90, and 180 days in concrete mixes produced with 5%, 10%, and 20% of two LFS types, both stabilized and non-stabilized. The relationship between...

Many of the first wind-turbine installations are reaching the end of their useful life, so their blades have to be replaced. Inexpensive, sustainable, and straightforward recycling solutions are therefore needed. The conversion of turbine blades into raw materials for concrete solutions is proposed in this paper, through a novel recycling process e...

In this paper, the performance of ladle furnace slag (LFS), a by-product of secondary steel refining, is evaluated as a binder to stabilize clayey soils of low bearing capacity. The aim is to define whether additions of this by-product to clayey soil can stabilize the soil in accordance with the technical specifications of Spanish standards. To do...

Muchos de los primeros aerogeneradores están acercándose al final de su vida útil. Así, sus palas deben ser desmanteladas, necesitando soluciones para su reciclaje innovadoras, por los materiales que la componen. Esta solución aborda su tratamiento mediante corte y machaqueo, generando así Triturado de Pala de Aerogenerador (TPA), válido para su in...

Industrial production of iron and steel within Spain has historically been situated in the north area of Spain. Although a major economic activity for the region, the industry also generates large volumes of waste that have hitherto been dumped in unsightly landfill sites. Over 25 years ago, a group of engineers and researchers from the same area s...

There is a need to promote high performance and sustainable construction materials such as Self-Compacting Concrete (SCC) made from various wastes. In concrete manufacturing, there is a general tendency to worsen the workability and mechanical behavior when working with wastes instead of natural raw materials. It is therefore necessary to use multi...

The construction industry in general is, through minor low-cost processing methods, converting several of its by-products into viable materials; furthermore, some siderurgic sector by-products are likewise of use. In this context, large-scale batches (mix volumes over 0.5 m 3) of good quality structural concrete are proposed, in which two kinds of...

The use of Recycled aggregate (RA) enhances concrete sustainability. If used on an industrial‐scale, structural verification, and testing will be required to confirm that RA concrete can meet relevant industrial standards and the requirements of manufacturers, especially in the precast‐concrete industry. In this paper, an experimental campaign with...

A Service-Learning Project (S-LP) is a teaching experience through which the concepts covered during an educational course can practically be applied to address a given social problem. It is therefore a useful teaching methodology to bring courses closer to the real world. An S-LP experience is reported in this paper that was conducted with student...

El presente trabajo tuvo por objeto el diseño de un pabellón polideportivo con el fin de incrementar la oferta de ocio en la zona rural de la Sierra de la Demanda (Burgos), especialmente durante la época invernal, cuando la climatología adversa de la zona limita el ocio a zonas cubiertas. Para ello, se elaboró el proyecto técnico de un polideportiv...

Alkali-activated cementitious materials (AAMs) are a kind of green building materials compared to Portland cement components. This review considers the related research on the AAMs to systematically summarize the results on its materials composition and performance influencing factors. The precursor material is mainly industrial solid waste contain...

Ultrasonic pulse velocity (UPV) is a non-destructive measurement technique with which the quality of any concrete element can be evaluated. It provides information on concrete health and for assessing the need for repair in a straightforward manner. In this paper, the relationship is studied between UPV readings and the mechanical behavior of self-...

The COVID-19 lockdown in Spain caused abrupt changes for students following the Bachelor’s Degree in Civil Engineering at the University of Burgos when face-to-face classes switched to online teaching. The recovery of face-to-face teaching after lockdown meant that classes were taught with obligatory social distancing and the use of masks. Teachers...

This paper presents a pilot experience of applying a novel, high-performance and sustainable material for pavements: a Porous Asphalt (PA) mixture that incorporates Ladle Furnace Slag (LFS). The overlay of a thin surface layer of this material was applied to an existing bituminous pavement. The main investigative results included the validation of...

Recycled Aggregate (RA) usually increases porosity and weakens Interfacial Transition Zones (ITZs) of concrete, which favors the appearance of internal thermal damage. Four Self-Compacting Concrete (SCC) mixes with coarse and fine RA were subjected to positive and negative cyclic temperature variations to characterize their thermal damage and quant...

Adding sustainable raw materials to Self-Compacting Concrete (SCC) modifies its flowability behavior. Furthermore, the use of these raw materials may at the same time even improve one fresh property while worsening another. An accurate flowability description of SCC containing sustainable raw materials therefore requires a multi-parametric classifi...

Non-destructive tests that cause no damage to concrete components can be used in rehabilitation works to determine concrete mechanical properties, such as the modulus of elasticity. In this paper, models are presented to predict the modulus of elasticity of Self-Compacting Concrete (SCC) with Recycled Aggregate (RA) and slag cement through the hamm...

The hammer rebound index has traditionally been solely and exclusively used to estimate the compressive strength of vibrated concrete. Its use has recently been extended to the prediction of the compressive strength of Self-Compacting Concrete (SCC) and concrete produced with Recycled Concrete Aggregate (RCA). The conventional use of the hammer-reb...

Four high-workability (pumpable and self-compacting) concrete mix designs are presented that incorporate steelmaking slags with additions of both metallic and polymeric fibers. Electric arc furnace slag (EAFS) as aggregate, and ladle furnace slag (LFS) and ground granulated blast furnace slag (GGBFS) as supplementary cementitious material (SCM) are...

A surface layer of permeable bituminous mixture has been laid on an existing pavement section. This layer, in addition to providing the pavement with draining characteristics and acoustic comfort, incorporates a residue that is difficult to apply, the ladle furnace steel slag. The tests carried out show that the designed mixture meets the requireme...

Steelmaking industry generates a large volume of by-products that not always can be reintroduced into production processes, such as the steelmaking process itself or the production of cement. This is the case of ladle furnace slag (LFS), whose potential use is limited and usually ends up in landfill. This work investigates the feasibility of using...

Numerous test results at laboratory scale confirm the utility of Recycled Aggregate (RA) for the development of concrete that demonstrates durability and adequate in-fresh and mechanical behavior. However, feasibility evaluations of the use of RA in real industrial applications are necessary, before any large-scale industrial application of these p...

With the development of marine resources, coral-based cement compositions have broad application prospects in coastal infrastructure construction such as island reef construction, flood control embankment, airport, and road, etc. Waste coral powder (CP) was used to prepare high-volume CP mortar (HVCM), and its multiscale characteristics and environ...

The modulus of elasticity of a concrete depends on the elastic stiffness of both the cementitious matrix and the aggregate–ITZ system, which includes any slippage mechanisms under loading between the aggregate and the cementitious matrix within the interfacial transition zone (ITZ). A procedure is presented in this paper to estimate the elastic sti...

The high fine-aggregate content of Self-Compacting Concrete (SCC) means that its deformational behavior differs from that of vibrated concrete. SCC performance is further altered when industrial by-products are used as raw materials in those fractions. In this paper, the aim is to analyze and to model the deformational behavior under compression an...

Any variation in temperature alters the dimensions of a concrete structure and provokes thermal stress. Moreover, the propagation of micro-cracking decreases the strength of concrete that is exposed to sub-zero temperatures (freezing), to heat phenomena (heating), or to cyclical thermal variations, especially when prepared using Recycled Concrete A...

La presente revisión bibliográfica profundiza en cómo las características del Árido de Hormigón Reciclado (AHR) afectan al comportamiento resistente del Hormigón AutoCompactante (HAC) y cómo el efecto esperado del AHR puede alterarse por cambios en la composición del HAC. Se demuestra que, si la trabajabilidad del HAC se mantiene constante, la resi...

The behavior of Self-Compacting Concrete (SCC) is very sensitive to the use of by-products in replacement of conventional cement or finer aggregate fractions. The high proportions of these raw materials in SCC can in great part explain this performance. 18 SCC mixes of slump-flow class SF3 were prepared for a thorough evaluation of different sustai...

Estimating the shrinkage of structural concrete is essential to calculate, at the design stage, the stresses that a structure may experience due to this phenomenon. Nevertheless, changes in composition, as well as the use of wastes as raw materials, alter the shrinkage behaviour of concrete and render invalid shrinkage-prediction models from the st...

The environmental conditions to which a concrete may be exposed will condition its real range of use. Thus, concrete behavior must, at all times, be verified under a wide variety of environmental conditions, in order to ensure its real applicability. In this study, the real strength development and durability behavior of a fiber-reinforced self-com...

The high strength and durability of high-performance concrete (HPC) may be significantly reduced by shrinkage cracking. The use of reactive magnesium oxide (MgO) can reduce shrinkage of cement-based materials due to its expansive properties. This study intends to analyse the validity of MgO as shrinkage-reducing agent in recycled aggregate HPC. To...

Hammer rebound index is an indirect measure that has traditionally been used to estimate the compressive strength of concrete through the use of statistical models. It is especially useful in the quality control performed during the construction of a concrete structure, as well as in rehabilitation works. The high content of fine aggregate and aggr...

We live in a consumer society that generates excessive amounts of waste. Innovative techniques to reduce these volumes of waste are therefore important lines of research in engineering. The Electric Arc Furnace steelmaking industry in the Basque Country produces almost 1% of global electric-arc-steel production. Although driving the economy, it als...

The specific physical properties of each byproduct added to a concrete mix significantly condition its in-fresh behavior. Its hardened performance, mainly a function of its compressive strength, is also affected by such aspects as porosity and interfacial transition zones (ITZs). A mix design that includes industrial residues must therefore be prop...

The intention of this study was to identify the elements that engineering students consider fundamental for successful learning on engineering courses. The aim was to provide generic guidelines suitable for any engineering course with which the teaching may be adapted in the light of comments from students, while student learning improves. The abru...

The feasibility of manufacturing fiber-reinforced concretes of high workability through additions of high volumes of electric arc furnace steel slag is evaluated in this paper, using sustainable binders with ground granulated blast furnace slag and ladle furnace slag as a supplementary cementitious material. An extensive experimental plan is develo...

Electric Arc Furnace (EAF) slag can be reused as aggregate in Portland cement concrete mixes. The addition of EAFS and other waste co-products (fly ash, blast furnace slag) will modify the binding properties and will, importantly, enhance the global sustainability of such concretes. These mix designs offer acceptable pumpability and self-compaction...

Predicting the mechanical properties of Self-Compacting Concrete (SCC) containing Recycled Concrete Aggregate (RCA) generally depends, in great part, on the RCA fraction in use. In this study, predictive equations for estimating SCC mechanical properties are developed through SCC porosity indices, so they are applicable to any RCA fraction and amou...

Replacing natural raw materials with industrial by-products can increase the sustainability of Self-Compacting Concrete (SCC), although its fresh and hardened behavior will usually worsen. The benefits of increased sustainability must therefore outweigh any reduction in concrete flowability and strength. These aspects can be analyzed through Multi-...

The high cement content of high-performance concrete (HPC) results in improved strength, but also in large shrinkage. The substitution of natural aggregates (NA) with recycled aggregates (RA) notably affects these properties in conventional concrete. This study intends to analyse the effect of the content of RA and their maturity (time elapsed betw...

The environmental impact of the building sector is especially relevant during the construction phase. Both the materials and the construction methods that are currently in use must be reconsidered, in order to minimize the environmental impact of concrete-based structures. This research is therefore focused on achieving greener concrete-based build...

Plastic strain behavior in the transversal direction to the axis of loading has often been underestimated in concrete design and its strength performance. However, as this article demonstrates, it is fundamental to define the viability of using concrete of a certain composition in real applications. In this study, 15 Self-Compacting Concrete (SCC)...

The addition of by-products, such as recycled concrete aggregate and ground granulated blast furnace slag, modify the in-fresh flowability of ordinary self-compacting concrete both initially and over time. A detailed study is presented in this paper of 18 mixtures (SF3 slump-flow class) containing 100 % coarse recycled concrete aggregate, two types...

The high wear resistance and toughness of electric arc furnace slag (EAFS) means that this industrial by-product can successfully replace natural aggregate in hydraulic or bituminous concretes that withstand vehicle traffic. This article validates the use of concrete made with large amounts of EAFS for rigid pavements. Accordingly, three EAFS–concr...

The major impacts of the COVID-19 pandemic are still affecting all social dimensions. Its specific impact on education is extensive and quite evident in the adaptation from Face-to-Face (F2F) teaching to online methodologies throughout the first wave of the pandemic and the strict rules on lockdown. As lesson formats changed radically, the relevanc...

Precast companies produce high amounts of waste due to the excess of fresh concrete not used during the manufacturing of the pieces or the rejection of elements with aesthetic or geometric defects. In recent years, because of the increased environmental awareness and to get a greater sustainability in the precast factories, this waste has not been...

The use of waste enables to reduce the consumption of natural resources and CO2 emissions released into the atmosphere because of the extractive activity, as well as to reduce potential landfills, thus contributing to a circular economy. According to this, this paper explores the development of self-compacting concrete made from recycled concrete a...

In recent years, it has been common to use recycled aggregates as substitute of natural aggregates in different engineering applications in order to decrease the consumption of natural resources and thus, reduce the environmental impact generated by building and civil engineering sector. In this research, an exhaustive characterization of aggregate...

Formative Assessment and Cooperative Work (FACW) is a teaching methodology that promotes student learning based on peer support, both in solving problems and identifying the mistakes made through feedback. The perceptions of 49 mechanical engineering students at the University of Burgos are analyzed in this article with regard to their first practi...