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Tesi per compendi de publicacions, The construction sector has the potential to contribute to the achievement of essential objectives of sustainable development, such as the fight against climate change, the defense of the environment or the design of cities. This sector is responsible for generating high rates of greenhouse gas emissions and construction and demolition waste, in addition to the excessive consumption of non-renewable abiotic and energy resources. In the search to mitigate these negative consequences, tools have been developed that allow these environmental impacts to be managed, one of them is the life cycle analysis (LCA). This thesis aims to assess the applicability of LCA in the construction sector. Specifically, evaluate the embodied environmental impacts in the life cycle in the housing construction and its urban environment. In this thesis were evaluated i) twenty exterior walls and the most environmentally appropriate configurations were established, as well as a system of equations that defined their environmental behavior, ii) eighteen residential streets with alternatives that prioritized non-motorized flow, and their influence on environmental impacts (both studies through an LCA from the cradle to handover) and iii) six types of housing, where the materials used in the walls and windows were varied (through an analysis of the cradle to the grave). For the latter case, the environmental challenges of the residential sector in Mexico were also addressed. The databases used were BEDEC, CYPE Latam (quantification of materials) and ecoinvent (life cycle inventory). The environmental impact methods used were CML 2001, Ecoindicator 99, IPCC 2013, and CED. In this thesis it was corroborated that LCA is a methodology applicable in construction which, with the constant updating of the regulations, has allowed the obtaining of increasingly global and transparent results, allowing the expansion of LCA to new geographies. Also, it was found that the stage of the greatest contribution, El sector de la construcción tiene el potencial de contribuir en el logro de algunos de los objetivos más importantes del desarrollo sostenible, como el combate al cambio climático, la defensa del medio ambiente o el diseño de las ciudades. Este sector es responsable de generar altas tasas de emisiones de gases de efecto invernadero y de residuos de construcción y demolición, además del consumo desmesurado de recursos abióticos y energía no renovables. En la búsqueda de mitigar estas consecuencias negativas, se han desarrollado herramientas que permiten gestionar estos impactos ambientales, una de ellas es el análisis del ciclo de vida (ACV). Esta tesis tiene como objetivo evaluar la aplicabilidad del ACV en el sector de la construcción. En específico, evaluar los impactos ambientales incorporados del ciclo de vida en la edificación de vivienda y de su entorno urbano. En esta tesis se evaluaron i) veinte muros exteriores y se establecieron las configuraciones más adecuadas para el ambiente, así como un sistema de ecuaciones que definió su comportamiento; ii) dieciocho calles residenciales con alternativas que priorizaron el flujo no motorizado, y su influencia en los impactos ambientales (ambos estudios mediante un ACV de la cuna a la mano de obra) y; iii) seis tipologías de vivienda, donde se variaron los materiales utilizados en los muros y las ventanas (mediante un análisis de la cuna a la tumba). Para este último caso, se abordaron también los retos ambientales del sector residencial en México. Las bases de datos utilizadas fueron BEDEC, CYPE Latam (cuantificación de los materiales) y ecoinvent (inventario de ciclo de vida). Los métodos de impacto ambiental utilizados fueron CML 2001, Ecoindicador 99, IPCC 2013 y CED. En esta tesis se corroboró que el ACV es una metodología aplicable en la construcción la cual, con la constante actualización de la normativa, ha permitido la obtención de resultados cada vez más globales y transparentes, permitiendo la expansión d, Objectius de Desenvolupament Sostenible::11 - Ciutats i Comunitats Sostenibles, Objectius de Desenvolupament Sostenible::12 - Producció i Consum Responsables, Postprint (published version)

Currently, few studies have compared the variations in environmental impact throughout the different stages of the life cycle of urban construction elements; and of these, only a minority approach it from the perspective of favoring mobility on a human scale and reducing the space allocated to motorized traffic flow. This study, by means of quantitative data, shows the environmental implications associated with prioritizing the non-motorized mobility of a city’s inhabitants during the design process of an urban construction element, the residential street (referring to the stages of the product and the construction process: the “cradle to handover” approach). An emerging methodology in urban themes was used in order to obtain the environmental analysis: Life Cycle Assessment (LCA). The results show that the increase in the human scale and the favoring of non-motorized mobility generate a lower environmental impact (considering the same uses of materials for the different zones of analysis). Additionally, it was possible to establish the influence that the specific use of materials employed in the construction of the streets may have, as well as the importance that an LCA acquires in the design of the urban environment., Peer Reviewed, Postprint (author's final draft)

Social Housing (SH) in Mexico has a potentially important role in reducing both the emission of greenhouse gases and the use of non-renewable resources, two of the main challenges facing not only Mexico but the planet as a whole. This work assesses the environmental impact generated by the embodied stages of a typical SH throughout its life cycle (cradle to grave), by means of a Life Cycle Assessment (LCA). Two types of envelope and interior walls and three types of windows are compared. It was found that SH emits 309 kg CO2 eq/m2 and consumes 3911 MJ eq/m2 in the product stages (A1 to A3) and construction process (A4 to A5); the most important stages are those referring to the products, namely, A1 to A3, B4 (replacement) and B2 (maintenance). Additionally, benefits were found in the use of lightweight and thermal materials, such as concrete blocks lightened with pumice or windows made of PVC or wood. Although the use of LCA is incipient in the housing and construction sector in Mexico, this work shows how its application is not only feasible but recommended as it may become a basic tool in the search for sustainability., Peer Reviewed, Postprint (published version)

This study presents a comparative analysis of the housing indicators used by the single-family housing rating systems (SHRSs), in which the residential urban environment (RUE) influences buildings’ certification scores, emphasizing the relationships of six systems developed by middle-income countries (MICs)—BEST, CASA, GBI, BERDE, Green Homes, and LOTUS—and the two most-recognized rating systems, BREEAM and LEED. The aim is to provide new housing indicators that are capable of bringing the concept of sustainability into the cities of MICs. The results reveal that the percentage of influence that single-family housing (SFH) can achieve in the metric established by each system is relatively low. However, considering all of the identified indicators, this influence could increase to 53.16% of the total score in multi-criteria evaluations. Furthermore, a significant lack of indicators for mandatory criteria evaluations was found, with CASA being the only system that considers their inclusion. This paper identifies 37 indicators for multi-criteria assessments and two for mandatory-criteria assessments, providing new perspectives on several topics. Furthermore, the methodology established to obtain the indicators could be useful for other researchers in the identification of new sustainable indicators., Peer Reviewed, Postprint (published version)

Recycled concrete aggregate (RA) from pavement demolition was used to make concrete. Ten concrete mixtures with different replacement percentages of RA (coarse and fine) were made. The corrosion rate of steel and the electrical resistivity of concrete were determined on reinforced concrete specimens subjected to wetting-drying cycles (3.5% solution of NaCl). Corrosion rate was determined using the electrochemical technique of linear polarization resistance, while the electrical resistivity was measured by electrochemical impedance spectroscopy. The results show that the use of RA introduces more interfaces in concrete, which accelerates the steel corrosion process because the porosity increases and the electrical resistivity decreases. However, steel corrosion and the electrical resistivity in concrete are not significantly influenced by replacing a maximum 30% of coarse aggregate or 20% of fine aggregate with RA., Peer Reviewed, Preprint

El Análisis de Ciclo de Vida (ACV), es un proceso para evaluar las cargas ambientales asociadas a un producto, proceso o actividad, identificando y cuantificando el uso de materia y energía así como los residuos generados. El presente artículo tiene como objetivo, la aplicación de la metodología del ACV en el sector de la construcción, mediante un ejercicio comparativo de infraestructura educativa, con el cual se ejemplifica su uso en la construcción y muestra sus ventajas y beneficios., Peer Reviewed, Postprint (published version)

This research focuses on a comparison of 20 external wall systems that are conventionally used in Spanish residential buildings, from a perspective based on the product and construction process stages of the life cycle assessment. The primary objective is to provide data that allow knowing the environmental behavior of walls built with materials and practices conventionally. This type of analysis will enable promoting the creation of regulations that encourage the use of combinations of materials that generate the most environmentally suitable result, and in turn, contribute to the strengthening of the embodied stages study of buildings and their elements. The results indicate that the greatest impact arises in the product stage (90.9%), followed by the transport stage (8.9%) and the construction process stage (<1%). Strategies (such as the use of large-format pieces and the controlled increase in thickness of the thermal insulation) can contribute to reducing the environmental impact; on the contrary, practices such as the use of small-format pieces and laminated plasterboard can increase the environmental burden. The prediction of the environmental behavior (simulation equation) allows these possible impacts to be studied in a fast and simplified way, Peer Reviewed, Postprint (published version)

In the last decade, Mexico has been prominent among the Upper-middle-income countries (UMC) due to the application of its Funding Program for Housing Solutions (FPHS) in dealing with social housing. This paper shows the results of the evaluations carried out, through the internationally recognized Building Sustainability Rating Systems (BSRS), on different housing units built under this program. It was necessary to carry out a normalization criteria process (NCP) due to the particular characteristics of each BSRS and the complexity they presented in carrying out a comparative analysis. Case studies indicate that housing developed by the FPHS obtained low qualifications according to internationally focused BSRS, with significant deficiencies concerning materials, energy efficiency, indoor environmental quality, and management. However, this study provides indicators of its possible integration in the social housing of countries with characteristics analogous to those of Mexico. Among all indicators, that those referring to the urban environment are capable of being integrated into the social housing. Among the findings, some aspects of the FPHS evaluation process impede the integration of sustainable characteristics in Mexican social housing. On the other hand, the FPHS evaluation model, which gives priority to urban environment aspects above all else, may represent a new paradigm towards the achievement of the sustainable social housing (SSH)., Postprint (author's final draft)

El hormigón es un material fundamental en la construcción civil, arquitectónica y de edificios; sin embargo, su producción convencional no corresponde a un desarrollo sostenible. En la actualidad, el prescindir de su uso es complejo por los requerimientos de las normativas, los códigos y las técnicas constructivas, que se basan en su utilización casi exclusiva así como en su exitosa aplicación. Por tanto, es necesario el estudio de hormigones alternativos que sean más amigables con el medio ambiente a partir de propuestas que permitan su aplicación. Los objetivos de esta investigación son: caracterizar las propiedades de los áridos reciclados de desechos de demolición (pavimentos), analizar su factibilidad técnica y económica actual y verificar el comportamiento mecánico básico de un hormigón estructural reciclado (HER) contenedor de los mismos. Los resultados indican que los áridos reciclados que provienen de pavimentos son más ligeros, porosos y absorbentes que los áridos naturales (más acusante en los áridos finos). A pesar de este decremento en la calidad de sus propiedades, estos pueden ser considerados como una opción aceptable en su uso como árido para hormigón estructural (pérdidas poco significativas de resistencia con contenidos de hasta 60%) _____ Concrete is an essential material in the civil, architectural and buildings construction; however, its conventional production does not correspond to sustainable development. Today, dispense with its use is complex due to the current requirements of regulations, codes and construction techniques, which are based on its use almost exclusively, as well as by its successful implementation. Therefore, the study of alternative concretes that are more environmentally friendly with proposals to allow its application, is necessary. The aims of this research are the characterization of basic properties of aggregates originating from recycled demolition waste concrete pavements and analyze its feasibility in the use of re, Postprint (published version)

n el actual trabajo de final de máster, se analizan, comparan y cuantifican los residuos generados de la construcción de las fachadas usando como casos de estudio las bibliotecas de Hospitalet del Llobregat. El trabajo se divide en seis apartados. En el primero de ellos se establece los objetivos y alcance del proyecto además de la metodología que se usará y el marco normativo empleado. A continuación se pasa a explicar el estado del arte introduciendo los términos de medioambiente y sostenibilidad, los residuos de la construcción y demolición (RCD), la gestión de RCD. Además en el estado del arte se pasa a describir los diferentes sistemas de simulación de residuos y otros proyectos y artículos científicos que se han tenido en cuenta para elaborar este proyecto. El siguiente apartado es la descripción de los edificios a estudiar para obtener una primera aproximación. Luego se pasa al análisis de fachadas para conocer el sistema constructivo utilizado, detalles, rendimientos, etc. Posteriormente se hace el análisis de la gestión de residuos que el primer paso es explica la herramienta de gestión de residuos en línea Net Waste Tool (NWT) que es el software utilizado para obtener información. A continuación se analizan los resultados que se han obtenido y al final se desarrollan unas tablas que permiten el estudio y comparación de la información obtenida a fin de poder elaborar las conclusiones de este proyect.En el software NWT se introdujo las diferentes partidas de obra de fachada de los diez sistemas de fachada analizadas así como parámetros medioambientales y de gestión de residuos, como por ejemplo densidades, porcentaje de reciclados, mermas, etc. Cuando ya se han introducido todos los datos, el programa genera diversas tablas para cada una de las fachadas analizadas en las que destacan las toneladas y volúmenes de residuos, el coste de estos y el porcentaje reciclado. Después se pasa a analizar los diferentes resultados a través de parámetros de homogenización, In this work of final master, is analyzed, compared and quantified the waste generated from the construction of facades using as a case study the libraries of Hospitalet de Llobregat.The work is divided into six sections. In the first of them is stablished the objectives and scope of the project and the methodology to be used and the regulatory framework established. Then is explained the state of the art by introducing the terms of environment and sustainability, construction and demolition waste (CDW) and the CDW management. Also in the state of art is described the different waste simulation systems and other projects and scientific papers that have been taken into account for developing this project. The next section is the description of the study buildings for a first approximation. After is passed to analyze the facades for know the construction system used, details, yields, etc. Later is analyzed the waste management and the first step is explain the Net Waste Tool (NWT) that is the software used for obtain the information. The results obtained are analyzed and in the end are developed tables that allow the study and comparison of the information obtained in order to draw the conclusion of this project. In the NWT software are introduced different works of the ten facades analyzed and other environmental parameters like density, percentage of recycled, wastage, etcWhen is introduced all the data, the program generates various tables for each facades analyzed where the highlight are the tons and volumes of waste, the cost of these and the recycling percentage. After is analyzed the different results through homogenization parameters.When the ten facade system of Hospitalet libraries are compared, is observed which are more efficient and which materials generate more waste.When the ten systems facade Hospitalet libraries are compared, it is observed which are more efficient and which materials instead generate more residues are.

The construction sector affects the environment through CO2 emissions generated by the use of massive quantities of materials, energy, and wastes during the construction and demolition processes. Moreover, current technology offers a wide variety of materials, products, and systems that could be used for a similar solution; however, the decision to select one or other element lies with the price and then by regulatory requirements and availability (ignoring the issue of sustainability). In a building, the pavements are one of the elements with major representativeness and with more possibilities of alternative variables in their materials; accordingly, this research exposes three different types of pavements with similar prices, comparable functions, and normative compliance, but providing a new sustainable perspective: The construction and demolition waste (C&DW) analysis. The results show the differences between the waste generated from each type of pavement, stressing that the application of sustainable management criteria can be significant for sustainable buildings construction. This research shows a new criterion applicable to the construction sector that could improve the selection (with equal requirements) of one type of pavement into a more environmentally friendly pavement; allowing the achievement of profits for builders., Peer Reviewed, Postprint (published version)

The construction industry is facing great challenges: reducing the levels of pollution, high consumption of energy and natural resources, solid waste generation and emissions of greenhouse gases (GHGs). The life-cycle assessment can help mitigate these damages, so the aim of this work is to analyze two systems of typical enclosures in the Spanish construction, in order to determine which option is more convenient to implement. The steps considered were extraction and production of materials, and construction of the enclosures; it was used as a functional unit m2 of enclosure. For the analysis of life cycle inventories and analysis of environmental impacts BEDEC and ECOINVENT were used, and as a method of environmental impact, Ecoindicator 99. Enclosures consists of two sheets of outer and inner wall and intermediate insulation. The enclosure 1 (C1) is composed of an outer sheet of perforated ceramic brick of high density (Cer), an intermediate insulation of expanded polystyrene (EPS) and an inner sheet partition large format (TGF), and the enclosure 2 (C2) consists of an outer sheet of mortar block (Mor), an intermediate insulation of projected polyurethane (PP) and an inner sheet of double hollow ceramic brick of low density (HD). The results indicate that the construction stage accounts for less than 1% of the general damages, which should not be considered as a general parameter in the building, since the process of building walls tends to be largely manual. Figure shows the impact of elements individually in each zone of protection; the most affected area by the process is the depletion of natural resources, followed by damage to human health, and ultimately the ecosystem quality. It is appreciated that the walls made from ceramic pieces are the most affected, being this more evident for the smaller and denser pieces; for its part the outer wall formed by block mortar turned out to be the most beneficial, however this benefit must be analyzed with low thermal ef, [CASTELLÀ] La industria de la construcción se enfrenta a grandes retos: la disminución de sus índices de contaminación, su alto consumo de energía y de recursos naturales, su generación de residuos sólidos y sus emisiones de gases de efecto invernadero (GEI). El Análisis de Ciclo de Vida puede contribuir a mitigar estos daños, por lo que el objetivo de este trabajo es analizar dos sistemas de cerramientos típicos en la edificación española, con el fin de definir qué opción es más conveniente para llevar a la práctica. Las etapas consideradas fueron la extracción y producción de los materiales, y la construcción de los cerramientos; se utilizó como unidad funcional el m2 de cerramiento. Para el análisis de los inventarios de ciclo de vida y el análisis de los impactos ambientales se utilizaron las bases de datos BEDEC y ECOINVENT, y como método de impacto ambiental, el ecoindicador 99. Los cerramientos consisten en dos hojas de muro (exterior e interior) y un aislamiento intermedio. El cerramiento 1 (C1) está compuesto por una hoja exterior de ladrillo cerámico perforado de alta densidad (Cer), una aislamiento intermedio de poliestireno expandido (EPS) y una hoja interior de tabique de gran formato (TGF), y el cerramiento 2 (C2) consta de una hoja exterior de bloque de mortero (Mor), un aislamiento intermedio de poliuretano proyectado (PP) y una hoja interior de ladrillo cerámico hueco doble de baja densidad (HD). Los resultados indican que la etapa de construcción representa menos del 1% de las afectaciones generales, lo cual no debe considerarse como un parámetro general en la edificación, dado que el proceso de construcción de cerramientos tiende a ser manual en gran medida. La gráfica muestra la repercusión que tienen todos los elementos de forma individual en cada zona de protección; la zona más afectada por el proceso es el agotamiento de los recursos naturales, seguido de los daños a la salud humana, y por último la afectación a la calidad del ecosistema. Se a, Peer Reviewed, Postprint (published version)

The construction sector affects the environment through CO2 emissions generated by use of massive quantities of materials, energy, and waste during the construction and demolition process. Moreover, current technology offers a wide variety of materials, products and construction systems that could be used for a similar solution; however, the decision to select one or other element lies with the price and then by regulatory requirements and availability (ignoring the issue of sustainability). In an apartment building, the pavements are one of the elements with major representativeness and more possibilities of alternative variables in its materials; so, this research expose three different types of pavements with similar prices, comparable functions, and normative compliance, but providing a new sustainable perspective: The construction and demolition waste (C&DW) analysis. The results (simulation of waste) evidence the differences between the wastes generated from each type of pavement, pointing that the application of sustainable management criteria can be significant for sustainable buildings construction. This research shows a new criterion applicable to the construction sector that could improve the selection (with equal requirements) of one type of pavement into a more environmentally friendly pavement, allowing the achievement of profits for the builders. ______________ El sector de la construcción afecta al medio ambiente a través de las emisiones de CO2 generadas por el uso de cantidades masivas de materiales, energía y residuos durante el proceso de construcción y demolición. Además, la tecnología actual ofrece una amplia variedad de materiales, productos y sistemas de construcción que podrían utilizarse para una solución similar; Sin embargo, la decisión de seleccionar uno u otro elemento radica en el precio y luego en los requisitos reglamentarios y la disponibilidad (ignorando la cuestión de la sostenibilidad). En un edificio de apartamentos, las aceras, Postprint (published version)

El sector de la construcción se encuentra en un proceso de mejora al respecto de la protección medioambiental, por lo cual se han desarrollado metodologías que permiten evaluar sus implicaciones en el desarrollo sostenible; y de ellas, el Análisis del Ciclo de Vida (ACV) es la que se está consolidando como la más adecuada, no obstante de ser una técnica de uso reciente en el sector constructivo. El objetivo de este trabajo es verificar la efectividad del ACV en la evaluación comparativa de sistemas de cerramientos habituales del ámbito español actual. El alcance de este análisis se ha limitado a las etapas de extracción y producción de los materiales, y de la construcción de los cerramientos, para lo cual se utilizó ECOINVENT Y BEDEC como inventarios y LCA Manager 1.3 como programa informático para determinar los impactos ambientales. Fue posible verificar que el ACV es una herramienta eficiente y flexible que tiene aplicación en el sector de la construcción. (Anglès) The construction sector is in a process of improving respect to environmental protection. As part of this initiative have developed methodologies to assess their implications for sustainable development; and of these, the Life Cycle Assessment (LCA) is being consolidated as the most appropriate, despite its recent use in the construction sector. The aim of this work is to verify the effectiveness of LCA in the benchmarking of enclosures construction systems of the current Spanish ambit. The scope of this analysis is limited to the extraction and production of materials and the construction phase of the enclosures. As inventories have been selected the database Ecoinvent and the BEDEC (Institute of Construction Technology of Catalonia); which were used to determine the environmental impacts using the LCA Manager 1.3 software. It was possible to verify that the LCA is an efficient and flexible tool that has application in the construction sector. Key Words: Life Cycle Assessment, Building Enclosures, Inv, Peer Reviewed, Postprint (published version)

Nowadays, in the construction sector, some methods are being investigated to detect and minimize their environmental impact. The Life Cycle Assessment (LCA) is a tool that allows the evaluation of the environmental burden of a product or process, with a scientific recognition increment; and therefore the aim of this work is to verify the feasibility of the use of LCA in the construction sector. For this purpose, the environmental impacts of the use of conventional reinforced concrete (RC) columns, and Glulam (G) as an alternative material, were compared. The scope of the LCA included the extraction and manufacture of materials and construction of the columns; the software tools used were LCA Manager 1.3 and database Ecoinvent 2.0. The study showed that the most critical stage is the production of materials. RC reports 3.5 times more damage to ecosystem quality, requires a 32% more extraction of natural resources, and produces effects on human health 53% higher than G; while G generates 108 times more damage to land occupation; however, considering environmental measures, this effect can be mitigated, since it is a material 100% renewable. Finally, it was verified that LCA is a feasible option to use in the construction field and, it provides a wide range of results., Peer Reviewed, Postprint (published version)

In this paper, it analyzes and compares the use of three different materials (Reinforced Concrete -R. C.-, Steel and Wood) usable for the building, and construction processes that this entails. The analysis aimed to investigate which of the three materials is the most appropriate from the perspective of sustainability in order to propose alternatives that minimize the impact they have on the environment. Today, concrete is the material most commonly used in construction, and therefore must be environmental objective for reflection, that after analyzed, we can propose other typologies or alternative materials. The analysis included projects single-family housing for each of the materials and building systems proposed, these cases involved comparable properties within their specific environments (rules and context Spanish) and process variables normalization that validate the analysis. The work was developed using the software tool for managing, scheduling and forecasting of construction waste Net Waste Tool (NWT) Waste & Resources Action Programmer, in which, it proceeded entering data, characteristics, volumes, consumption and emissions of each entry or supplies described in the study variables, and in this way, determine and quantify the pollutants vectors generated by these. The analysis of the results obtained have been able to argue a selection of materials for building sustainable new approach to waste generation, understanding that at the end of a life cycle, process or matter that pollutes less is best, Peer Reviewed, Postprint (published version)

Con el fin de participar activamente en la sustentabilidad de la industria de la construcción, se ha propuesto mejorar la durabilidad de las estructuras de concreto y el reemplazo parcial o total de sus componentes por materiales reciclados, de tal modo que sea factible reducir el insostenible impacto que ésta representa en la naturaleza. En el presente estudio se evaluó el comportamiento elástico del concreto fabricado con agregado reciclado. Se sabe que el comportamiento elástico del concreto está íntimamente ligado con las características propias del agregado: forma, tamaño, porosidad, módulo de elasticidad, mineralogía, entre otros. Por ello, es de suponerse que el comportamiento mecánico del concreto con agregado reciclado es diferente al convencional, por tal motivo se estudió el comportamiento elástico que presenta el concreto reciclado por medio del ensayo de frecuencia de resonancia por impacto y del ensayo a compresión en probetas cilíndricas y prismáticas rectangulares, Postprint (published version)

Due to the significant environmental impact that the concrete production causes, and as a contribution to sustainability of this industry; presently sorne of the concrete constituents are replaced with alternative recycled materials. Chloride ingress into concrete is one of the main causes of electrochemicaJ corros ion of reinforcement. Although there is an interest to use Recycled Concrete Aggregate (RCA) in concrete, its use is limited due to its detrimental effect on durability. Therefore in this research RCA and Supplementary Cementing Materials (SCM), such as Fly Ash (FA) and Silica Fume (SF), were used to produce durable and environmentally friendly concretes. They were evaluated based on Iheir compressive strength, porosity, electrical resistivity and chloride-induced reinforcement corrosion when Ihey were exposed lo accelerated chloride conditions. The corrosion rates of steel embedded in these concretes were measured by the electrochemical impedance spectroscopy technique. The results indicaled that concrete manufactured with 100% RCA are inferior to conventional concretes, but their performance can be improved by replacing Portland cement by 30% FA ev'lO% SE, Peer Reviewed, Postprint (published version)