Evangelina Atanes Sánchez

Universidad Politécnica de Madrid | UPM · Ingeniería Mecánica, Química y de Diseño Industrial

Energy efficiency and waste management are crucial for sustainability of construction sector. In this research, a new gypsum composite material is presented in which traditional raw materials have been partially replaced by thermal insulation waste from facades energy retrofitting projects, using an innovative process to recover this waste. Consequ...

The development of new environmentally friendly construction materials that incorporate waste as an alternative to traditional raw materials is becoming increasingly important and necessary for the construction sector. Gypsum plasters composites are characterised by their versatility and wide range of applications in precast construction due to the...

The construction sector generates a strong environmental impact every year as a result of the high consumption of raw materials and the large waste volumes associated with this productive activity. In this sense, the search for alternative and sustainable solutions that allow progress towards responsible economic growth has become a priority activi...

Sepiolite is an important raw fibrous material. A method to prepare red pigments based on sepiolite through the thermal treatment of sepiolite with sulfur and sodium sulfide hydrate is reported. Sepiolite was heated until 800 °C in order to remove zeolitic water, the first coordinated water, the second coordinated water, and structural hydroxyls. S...

Delays and cost overruns in turnkey projects can lead to significant economic losses, disputes and even project abandonment. These facts negatively impact the environmental, social and governance (ESG) policies of companies involved in the project. In this paper, a bibliographic review was conducted to identify the leading causes of delays and cost...

In this work, the treatment of wastewater polluted with contaminants of emerging concern is evaluated by heterogeneous photocatalysis with TiO2. Titanium plates are anodized by different experimental conditions, and the influence of these conditions on the catalytic performance is evaluated by factorial design of experiments. The formation of TiO2...

The objective of this work is to analyze the possibilities of reusing plastic waste of cables added in a plaster matrix. Firstly, the experimental process has allowed the physicochemical characterization of the raw material, plaster and plastic waste, consisting in elemental analysis, XRD and thermogravimetric analysis; Secondly, the performance of...

The goal of this work is to design and set up a new multi option photo reactor with a high compactness to remove contaminants of emerging concern from wastewater. In this reactor, different advanced oxidation processes can be conducted simultaneously, such as electrochemical oxidation, photolysis and photocatalysis with TiO2 nanotubes array, theref...

Today's society is increasingly aware of the conservation of architectural heritage and, at the same time, is committed to the use of new technologies in construction and the use of more sustainable construction materials. This work has a double objective, on the one hand, to develop new measurement equipment based on Arduino platform for the monit...

La insólita situación derivada de la crisis COVID-19, ha obligado a docentes y alumnos a reinventarse, utilizando nuevos métodos de enseñanza y aplicando tecnologías en línea que permitan un aprendizaje a distancia eficiente. Como consecuencia, en la asignatura práctica Experimentación en Ingeniería Química II, del Grado en Ingeniería Química, las...

The objective of this study was to analyze the physico-mechanical properties of gypsum boards including plastic waste aggregates from cable recycling. The plastic cable waste is incorporated into the gypsum matrix without going through any type of selection and/or treatment, as it is obtained after the cable recycling process. In the experimental p...

This paper shows the characterization of a new lightened gypsum-based material for use in buildings. A plaster material has been designed with a polymeric compound based on polyvinyl acetate, bicarbonate and a boric acid solution, which reduce the density and thermal conductivity by up to 20% and 30%, respectively. In addition, tests have been carr...

This article analyzes the effect of fire on plasterboards containing plastic cable aggregates. Before, their physical and mechanical properties have been studied and published, whose results comply with the applicable regulations. In this research, considering the plaster coating to be a passive means of trying of reduce the flammability of the agg...

Non-destructive testing can be used to determine some of the most relevant physical properties of building materials. In this work, two low-cost measuring devices were developed capable of determining the variation in real-time of the percentage of humidity that is produced in the construction of gypsum and plaster during the hardening process. For...

The objective of this research is to analyse the fire resistance of cement mortars with mineral wool from construction and demolition waste (CDW) recycling. The recycled mortars are therefore exposed to direct fire reaching a maximum temperature of 700 °C, and an experimental plan is designed to analyse thermo-mechanical behaviour before and after...

The construction and demolition waste can be used as an alternative with a lower environmental impact compared to the use of natural aggregates in the concrete and mortar manufacture. In this work, it has been performed an analysis of lime and cement mortar properties made with ceramic recycled aggregates reinforced with three types of fibers: glas...

Gypsum is a material that has been widely used since ancient times in building and industrial construction. Due to the great development of prefabricated construction in the last years, diverse authors have tried to improve the properties of plaster panels and boards through its composition variations. The aim of this study is to determine what typ...

In the field of construction materials, the requirement of Fire Resistance tries to reduce the chances of an uncontrolled fire starting or spreading. This not only affects the danger involved in the destruction of the element of which the construction material is part, but also the risk that arises from the production of flue gases during the fire....

The aim of this article is to analyse the water-resistant properties of gypsum compounds with plastic cable waste added in order to determine the suitability of their use as an alternative to combat moisture problems in buildings. In the experimental process, test samples were made and subjected to capillary water absorption, water vapour permeabil...

This work presents the results of a treatment process of municipal solid waste incineration (MSWI) fly ash using a solution of sodium carbonate as a stabilizing agent. The effectiveness of the treatment was evaluated by means of leaching test for waste characterization according to European Standard, with special focus on soluble chlorides and heav...

Organic contaminants, specifically contaminants of emerging concern (CECs), have a great environmental impact, since the removal of these pollutants is of great difficulty by conventional treatments and the presence of these pollutants in the aquatic medium, even at low concentrations, is extremely hazardous to human health. Advanced oxidation proc...

The design of greener materials is of great interest to develop eco-efficient construction systems, causing less environmental impact and following circular economy criteria. Accordingly, the current study aimed to analyze the viability to incorporate glass waste- from construction and demolition-in gypsum composites, promoting a circular economy i...

Mineral wool is currently the most used insulation in the European Union, and quantities of this waste have increased alarmingly in the last decade, making it essential to recycle or reuse the material, which is not current practice. This study aims to verify the feasibility of compounds of a cement base with additives of insulating mineral fibre r...

The presence of hazardous chemicals in wastewater produced by industrial activities and human metropoles is threating the availability of safe drinking water. The development of a multifunctional material coupling adsorption and photocatalytic activity is hereby particularly promising for the removal of pollutants. We have proved the adsorption and...

This article summarises the first phase of a research project that analyses the feasibility of re-using plastic cable waste (pellets) as a means of reducing the environmental impact of buildings. The aim is to find a use for this plastic waste in construction materials, specifically gypsum matrices, by characterising the physical and chemical prope...

This research analyzes the feasibility of recycling fibers from mineral wool from construction and demolition waste, by incorporating them into a cement mortar matrix. The aim will be to find a new more sustainable cement mortar with improved mechanical and thermal properties. The experimental procedure starts with a preliminary study on the viabil...

Heavy metal cation mixtures constitute a critical issue facing water treatment. Among available technologies, adsorption is here presented as a selective and effective technology. With this purpose, two adsorbents have been prepared by chemical activation of discarded tires, which in turn, constitutes the valorization of a residue from the automoti...

Waste tires have been upgraded as activated carbon by chemical activation with KOH at different KOH:tire ratios, 0:1, 0.5:1, 1:1 and 4:1, namely AC-0, AC-0.5, AC-1 and AC-4 and characterized in terms of elemental and proximate analyses, nitrogen adsorption/desorption, acid/base and Boehm titrations. An increase in activating agent:tire ratio result...

Two activated carbons have been prepared by chemical activation of deinking paper sludge with K2CO3, with further carbonization in N2 (AC-N2) or CO2 (AC-CO2) and characterized in terms of proximate analyses, adsorption/desorption of N2, skeletal and bulk pycnometry, acid/base and Boehm’s titrations, X-ray diffraction and scanning electron microscop...

The methodological aspects required for evaluating the risks associated to the synthesis of chemical products is presented. The study is part of the efforts done at the universities Polytechnic of Madrid and of Valladolid in Spain. Chemical risk assessment, such as estimating the inputs of contaminants, their environmental fates and impact indexes,...

Three activated carbon samples have been prepared by thermal (ACchar), physical (with CO2, ACCO2) and chemical (with KOH, ACKOH) activation of waste cork powder. Cork was characterized by thermogravimetric, elemental and proximate analyses, and activated carbons were characterized by elemental and proximate analyses, adsorption–desorption of N2, ac...

Hydrogen has attractive features for energy integration, primarily on account of its multi-functionality: it acts as an storable 'energy carrier' that can be either converted back into electricity -thus providing a balancing service to power generators and suppliers- or it can be used as a 'zero emissions' fuel for other applications, such as trans...

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Polycrystalline LnAg(WO4)(MoO4) powders, with Ln=La to Lu and Y, have been obtained by ceramic method. Rietveld refinement for all compounds reveals that they present tetragonal symmetry, space group I41/a (No. 88), where the Ln3+/Ag+ ions are located in the 4a atomic positions, since the W/Mo are randomly distributed into 4b crystal sites.In these...

Synthesis and characterization of UV emmiting phospor for application in photocatalytic degradation of contaminants.