Orientador: Marcus César Avezum Alves de Castro / Resumo: Os problemas relacionados ao gerenciamento dos Resíduos da Construção Civil (RCC) envolvem todas as etapas, desde a geração à destinação final. A quantidade de resíduos gerados, que em sua maioria são materiais volumosos, a falta de áreas de deposição adequadas, a ausência de controle do município tanto na quantidade gerada quanto no descarte dos resíduos, são alguns dos desafios enfrentados pelos gestores municipais. Desta forma, o presente trabalho teve como objetivo principal analisar as práticas de gestão de resíduos da construção civil vigente no município de Rio Claro identificando as potencialidades e vulnerabilidades do sistema, e consequentemente propor estratégias e instrumentos que sinalizem para a solução dos problemas encontrados. Para isso, foram realizadas atividades de campo através de visitas às instalações de gestão de RCC do município e aplicação de entrevistas aos responsáveis por estas, e também aos transportadores e gestores municipais. Observou-se que o município possui um amplo arcabouço legal sobre o tema de RCC, porém seu PGRCC encontra-se desatualizado; em relação a infraestrutura de gestão de RCC, possui todas as instalações de destinação consideradas necessárias, porém a capacidade de processamento (principalmente dos PEV’s e da Usina) é insuficiente para receber todo o resíduo gerado no município. Além disso, o poder público municipal não realiza nenhum tipo de controle da geração e destinação dos RCC, isto faz com que os transportadores de peque... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: The Construction and Demolition Waste (C&DW) problems involve all phases of its management, from generation to final destination. The amount of waste generated, which is mostly bulky materials, the lack of adequate deposition areas, the lack of control of the municipality in both the amount generated and the waste disposal are some of the challenges faced by municipal managers. In this way, the main objective of this work is to analyze the waste management practices of the civil construction in the city of Rio Claro, identifying the potentialities and vulnerabilities of the system, and consequently to propose strategies and instruments that signal to solve the problems encountered. With that in mind, field activities were carried out through visits to the municipal C&DW management facilities and interviews with those responsible for them, as well as to municipal transporters and managers. It was observed that the municipality has a broad legal framework on the subject of C&DW, but its PGRCC is outdated; in relation to the C&DW management infrastructure, it has all the necessary disposal facilities, but the processing capacity (mainly of the ENP's and the Plant) is insufficient to receive all the waste generated in the municipality. In addition, municipal public power does not carry out any type of control of the generation and destination of C&DW, which means that small and large volume carriers are disposed of in irregular locations. From this analysis it was concluded that ... (Complete abstract click electronic access below) / Mestre

In 2005, the Recycling Council of Ontario published a report that identified the construction industry as one sector that did not manage its waste in an environmentally appropriate manner. In this report, Let’s Climb Another Molehill, 15 case studies were executed to understand why this industry was neither handling nor disposing its waste properly in Southern Ontario. A set of generic recommendations was generated to help improve the management of this industry’s waste. Unfortunately the scope of the report was too broad to support conclusions about the management of specific types of problematic construction waste. The aim of this thesis is to narrow what was done in Let’s Climb Another Molehill to focus only on gypsum wallboard. The purpose of this research is to determine what options are the most desirable and feasible to deal sustainably with gypsum wallboard waste in Southern Ontario, both now and in the future. All recommendations offered are case specific. A number of methods have been utilized to obtain the information needed to formulate appropriate recommendations to deal with wallboard. Information learned through the literature, witnessed through the observation sessions, and acquired through the interviews led to two unique option categories: 1) alternative materials and 2) change in practices. To evaluate these options, a set of criteria was created based on the concepts of sustainability and integrated waste management (IWM). This sustainable IWM criteria set allowed for consistent evaluation of the options. To improve the recommendations, the sustainable IWM criteria were refined to better deal with each of the two categories of options. When the sustainable IWM criteria for evaluating alternative materials were applied, gypsum wallboard was found still to be the best interior wall material to use today. However, applying the sustainable IWM criteria for evaluating change in practices showed that the problem with using this product lies with its management and, therefore, the remaining recommendations focus on improving the creation, use and disposal of wallboard. Many of these recommendations can easily be adopted to help eliminate inappropriate wallboard management practices. This research was able to identify areas where problems arose and to offer feasible options to improve environmentally inappropriate behaviors associated with wallboard management. Although numerous recommendations are offered, the three fundamental recommendations that will lead to the biggest change include: 1) greater number of educational programs devoted to the construction industry; 2) stricter regulations and better enforcement; and 3) a dramatic increase in landfill tipping fees. If these three recommendations were implemented, it is believed that they will play a positive role in managing gypsum wallboard waste in a more sustainable manner.

In 2005, the Recycling Council of Ontario published a report that identified the construction industry as one sector that did not manage its waste in an environmentally appropriate manner. In this report, Let’s Climb Another Molehill, 15 case studies were executed to understand why this industry was neither handling nor disposing its waste properly in Southern Ontario. A set of generic recommendations was generated to help improve the management of this industry’s waste. Unfortunately the scope of the report was too broad to support conclusions about the management of specific types of problematic construction waste. The aim of this thesis is to narrow what was done in Let’s Climb Another Molehill to focus only on gypsum wallboard. The purpose of this research is to determine what options are the most desirable and feasible to deal sustainably with gypsum wallboard waste in Southern Ontario, both now and in the future. All recommendations offered are case specific. A number of methods have been utilized to obtain the information needed to formulate appropriate recommendations to deal with wallboard. Information learned through the literature, witnessed through the observation sessions, and acquired through the interviews led to two unique option categories: 1) alternative materials and 2) change in practices. To evaluate these options, a set of criteria was created based on the concepts of sustainability and integrated waste management (IWM). This sustainable IWM criteria set allowed for consistent evaluation of the options. To improve the recommendations, the sustainable IWM criteria were refined to better deal with each of the two categories of options. When the sustainable IWM criteria for evaluating alternative materials were applied, gypsum wallboard was found still to be the best interior wall material to use today. However, applying the sustainable IWM criteria for evaluating change in practices showed that the problem with using this product lies with its management and, therefore, the remaining recommendations focus on improving the creation, use and disposal of wallboard. Many of these recommendations can easily be adopted to help eliminate inappropriate wallboard management practices. This research was able to identify areas where problems arose and to offer feasible options to improve environmentally inappropriate behaviors associated with wallboard management. Although numerous recommendations are offered, the three fundamental recommendations that will lead to the biggest change include: 1) greater number of educational programs devoted to the construction industry; 2) stricter regulations and better enforcement; and 3) a dramatic increase in landfill tipping fees. If these three recommendations were implemented, it is believed that they will play a positive role in managing gypsum wallboard waste in a more sustainable manner.

The aim of this study was to determine the quantity of construction waste for several construction materials and to state the probable origins of this waste, depending on case studies in Turkey. There is a lack of documented quantitative data in Turkey on how much material waste the construction industry generates and what amount of such materials remain unused due to this waste. Although some amount of waste is accepted as unavoidable, the probable reasons for it are unclear. Therefore, the study focused on determining waste percentage values for certain materials based on several construction projects and assessing the reasons for this as stated by the professionals who were involved in the construction process of these projects. For practical reasons, it was confined to the material amounts in the bill of quantities, progress payment reports and invoices for four different construction materials / namely, ready-mixed concrete, rebar, brick and floor block, which belonged to eight different projects of two construction companies. Data compiled on these aspects were analyzed statistically via ANOVA and regression analyses. The results showed that waste percentage values displayed differences among materials. Design-related aspects, skill level and attitude of labor, incorrect calculation of material quantities, contractual clauses and material defects were the most effective reasons for waste within the projects analyzed.

Made available in DSpace on 2016-06-02T20:09:20Z (GMT). No. of bitstreams: 1 5883.pdf: 4918848 bytes, checksum: be74a4a1c85de8e4a97d1f9e3deff58f (MD5) Previous issue date: 2014-02-25 / Financiadora de Estudos e Projetos / The civil construction is responsible for generating a lot of waste and the lack suitable for waste treatment can cause many environmental and social problems. Brazil is the world s largest producer in the sugar and alcohol sector. During the processing of sugarcane is generated the ash sand of the sugarcane bagasse (ASSB), resulting from the burning of bagasse in boilers. The ASSB is usually released in the environment inappropriately. This study aimed to verify the possibility of using the ASSB to partially replace river sand and the construction waste (CW) to partially replace crushed stone in concretes. The ASSB samples were standardized by manual sieving and deagglomeration. The CW samples were standardized by manual screening and automated screening. The ASSB and CW were subjected to physical and chemical characterization, by its chemical composition, sieve analysis, powdery material, absorption, bulk density and true density. The ASSB was used in concretes with 30% substitute level and the CW was used with 30%, 50% and 100% substitution levels, it were produced seven concretes recipe (REF, 30ASSB, 30CW, 50CW, 30ASSB30CW, 30ASSB50CW and 100CW). The concretes were submitted to tests of compressive and tensile strength, elastic modulus, void index, absorption, density and carbonation. The concretes produced with the isolated use of 30 % of ASSB (30ASSB) and 30 % and 50 % of CW (30CW and 50CW) presented similar mechanical properties to the reference concrete. The concretes produced with 30% of ASSB and 30% and 50 % of CW ( 30ASSB30CW, 30ASSB50CW) presented similar progression of carbonation to the reference concrete, however, the combined use of the ASSB and CW resulted in the achievement of concrete with a reduction of 17%, 12% and 8% in compressive strength at 7, 28 and 91 days, respectively. Thus it is possible to indicate the combined use of the ASSB and the CW as a partial substitute natural aggregates in concrete, since the decrease in resistance can be considered low against the possibilities of using concrete containing these wastes. / A construção civil é responsável por gerar uma grande quantidade de resíduos, sendo que a falta de tratamento adequado para tais resíduos pode ocasionar diversos problemas ambientais e sociais. O Brasil é o maior produtor mundial no complexo sucroalcooleiro. Durante o processamento da cana-de-açúcar gera-se a areia de cinza do bagaço da cana-de-açúcar (ACBC), resultante da queima do bagaço em caldeiras. Essas, geralmente são lançadas ao meio ambiente de forma inadequada. Essa pesquisa objetivou verificar a possibilidade do uso da ACBC e do resíduo da construção civil (RCC) em concretos, sendo que a ACBC foi utilizada como substituta parcial do agregado miúdo natural e o RCC como substituto parcial do agregado graúdo natural. As amostras de ACBC foram padronizadas através de peneiramento manual e desaglomeração das partículas. As amostras de RCC foram padronizadas por meio de triagem manual e peneiramento mecanizado. A ACBC e o RCC foram caracterizados quanto à composição granulométrica, absorção, massa específica, massa unitária e propriedades químicas. Após a caracterização, foi realizada a dosagem e moldagem de corpos de prova de concreto com teores de substituição de 30% de ACBC e 30%, 50% e 100% de RCC e foram produzidos sete traços (REF, 30ACBC, 30RCC, 50RCC, 30ACBC30RCC, 30ACBC50RCC e 100RCC). Foram realizados ensaios de resistência à compressão, resistência à tração, módulo de elasticidade, índice de vazios, absorção, massa específica e carbonatação. Os concretos produzidos com a utilização isolada de 30% de ACBC (traço 30ACBC) e de 30% e 50% de RCC (traços 30RCC e 50RCC) apresentaram propriedades mecânicas similares ao do concreto referência (REF). Os concretos produzidos com 30% de ACBC em conjunto com 30% e 50% de RCC (traços 30ACBC30RCC, 30ACBC50RCC) apresentaram evolução na frente de carbonatação similar ao concreto referência, porém, a utilização conjunta da ACBC e do RCC resultou na obtenção de concretos com redução de 17%, 12% e 8% na resistência à compressão aos 7, 28 e 91 dias, respectivamente. Desse modo é possível indicar o uso conjunto da ACBC e do RCC como substitutos parciais de agregados naturais em concretos, pois a redução da resistência pode ser considerada baixa frente às possibilidades de utilização dos concretos contendo esses resíduos.

Made available in DSpace on 2015-03-26T13:28:06Z (GMT). No. of bitstreams: 1 texto completo.pdf: 5185510 bytes, checksum: 9e48ae943a1c416c13753927b8125c85 (MD5) Previous issue date: 2011-11-17 / Intense population growth brings with it environmental concerns, since exploitation of natural resources, makes it essential to adopt recycling policies in order to achieve sustainable development. Therefore, this study sought to define a new application for recylcling construction and demolition waste (CDW-R). Two size distributions that could be readily prepared in the field were defined for two different samples of recycled waste materials, one basically concrete and other basically ceramic. Tests were performed to simulate conditions of actual use of the materials in the field, and included vertical permeability, confined compression in a hydraulic press, particle size distribution (before and after the confined compression test) and evaluation of clogging by leachate from an existing landfill. The results showed that the CDW-R from concrete are about 80% less deformable than ceramic, indicating that their use in drainage systems is more suitable in this respect. Between samples of the same type, the variation of the modulus of deformability as a function of particle size distribution was 32% for the ceramic waste and 28% for concrete residue, indicating that the deformability of the waste from concrete is less influenced by particle size distribution. It was observed that All samples tested presented a decrease in particle size distribution after the confined compression test. In the leaching test can not be found that there was No clogging by leachate was observed during the evaluation period, but this study should be continued to produce more conclusive results. / O intenso crescimento populacional traz consigo uma preocupação ambiental, já que, diante da necessidade de exploração dos recursos naturais, a adoção de políticas de reciclagem faz-se fundamental para alcançar o desenvolvimento sustentável. Diante disso, neste trabalho procurou-se definir uma nova aplicação para os Resíduos de Construção e Demolição Reciclados (RCD-R). Foram definidas duas distribuições granulométricas facilmente desenvolvidas em campo com duas amostras distintas de materiais reciclados, uma de resíduos oriundos, basicamente, de concreto e outra de resíduos oriundos, basicamente, de cerâmica. Foram caracterizadas suas propriedades geotécnicas como materiais de construção e verificados seus desempenhos como elementos de camadas drenantes, principalmente em aterros de resíduos sólidos. Visando expor os materiais às condições reais de uso foram realizados ensaios de permeabilidade vertical, compressão confinada em uma prensa hidráulica, distribuição granulométrica (antes e após o ensaio de compressão confinada) e avaliação de colmatação com lixiviado de um aterro sanitário existente. Os resultados obtidos demonstraram que os RCD-R oriundos de concreto são cerca de 80% menos deformáveis que os de cerâmica, indicando que seu uso em sistemas de drenagem é mais adequado, sob este aspecto. Entre amostras de mesmo tipo, a variação do módulo de deformabilidade em função da distribuição granulométrica foi de 32% para o resíduo de cerâmica e 28% para o resíduo de concreto, indicando que a deformabilidade dos resíduos oriundos de concreto é menos influenciada pela distribuição granulométrica. Foi observado que todas asamostras ensaiadas apresentarem uma quebra dos grãos, verificada nos ensaios de distribuição granulométrica feitos antes e depois do ensaio de compressão confinada. No ensaio com lixiviado não se pode constatar que houve colmatação no período avaliado, mas recomenda-se a continuação do ensaio para que se tenham resultados mais conclusivos.

Esta dissertação focou na análise do sistema de gerenciamento de transporte e destinação dos RCC gerados na cidade de São Paulo e na elaboração de uma descrição funcional para um programa tutorial futuro que possibilite a aproximação dos usuários geradores de RCC às soluções mais adequadas de coleta, transporte e destinação fornecidas pelo município. Para tanto, foram coletados dados das empresas de transporte e receptoras de RCC e foi feito o mapeamento destas na região metropolitana de São Paulo. Foram analisadas as informações disponibilizadas pelo poder público quanto ao seu acesso e à participação dos usuários no processo, assim como o papel do Estado, não só como agente fiscalizador, mas também como motivador e educador. A infraestrutura do sistema de transporte e destinação dos RCC foi avaliada e o fluxograma do processo foi montado, considerando essa análise e a sequência de fluxos. O fluxo delineado demonstra vários caminhos em consequência das quantidades geradas de RCC e das suas classes, que determinam os tipos de transporte e os locais de destinação. Quanto às informações disponibilizadas pela prefeitura, as mesmas não são adequadas, pois seu acesso não está claro nos sites oficiais e faltam elementos que facilitem a compreensão dos usuários geradores para a integração efetiva no processo / This dissertation has focused on the analysis of the management system of transport and destination of RCCs generated in the city of São Paulo and on the elaboration of a functional description for a future tutorial program that will allow an approximation of the RCC generating users to more adequate solutions for collection, transport and destination offered by the municipality. For this purpose, data were collected from the RCC transport and receiver companies and a mapping of the metropolitan region of São Paulo was made. The information provided by the public authority was analyzed as to its access and the participation of users in the process, as well as the role of the State both as a fiscal agent and as a motivator and educator. The infrastructure of RCC transport and destination system was evaluated and the flowchart of the process was created considering this analysis and the sequence of flows. The outlined flow demonstrates several paths as a result of the quantities of RCC generated and of their classes, which determines the types of transport and the locations of destination. The information made available by the town hall is not adequate though, because its access is not clear on the official sites and the elements that facilitate the understanding of the generating users for an effective integration in the process are missing

On behalf of Skanska, the goal is to develop proposals for improving the work environment around the waste management to improve the sorting of construction waste to ultimately reduce costs and improve the order of the workplace. The study involves comparing two construction stages erected by Skanska with Riksbyggen contracting Sandåkern in Umeå. Why was there more residue in the second stage than in the first? What can be useful for future projects and what opportunities should we create in order to reach a continuous improvement on both the working environment and sorting of waste? Interviews are the basis for some of the conclusions about the differences in the amounts of waste at the two stages and are included as appendices, at the end of this thesis. A combined result from the questions asked during the introduction has resulted in an "Easy to do right" - template. Where the idea is that the template is to become a poster at the workplace in size A3. The poster will contain small, simple tips on how waste can be reduced and the work environment could be improved. This can be achieved by sorting through the materials available on site and keep the necessary things, which will improve the overview of what is available and fewer materials would break or disappear due to a messy environment. It is good to use both breaks and lunches to dispose of materials with the “feed-cart” and bring the cart back after the break. Let everyone participate in how to developing the workplace and what kind of daily routines it should have. It makes everyone become more committed to keep on doing it. A cable that hangs down from the ceiling or the floor could cause an injury, this need to be taken care of by securing it so no one will get hurt. Holes that may exist should also be covered so that no one will trip and fall. Sorting out the fractions will save money since then the waste company doesn’t have to charge extra for their sorting of the recycled materials. When everyone keeps a high level of cleanliness it reduces the spread of dust, clutter in the workplace and prevents materials from getting destroyed which would result in an increased amount of waste. The management of construction waste can be improved with simple and sound means, which will create a safer work environment and a quieter life. Through these small, simple means there is both the environment and money to save and a sense of coming home healthy and happy to ones family at the end of the work day. It is something that we all want to achieve, not only construction companies, but also individual to be happy with their work. Let's put our heads together and build a better and safer future for both nature and the individual. / Examensarbetet är utfört efter ett förslag från Skanska Hus med målsättningen att ta fram förslag till förbättringar av arbetsmiljön kring avfallshanteringen och med den kunna förbättra sorteringen av byggavfallet för att i slutändan kunna minska kostnader och få en bättre ordning på arbetsplatsen. Studien handlar om att jämföra två etapper som utfördes av Skanska med Riksbyggen som byggherre på Sandåkern i Umeå. Varför blev det mer avfall på den ena etappen än den andra? Vilka delar kan vi ta med oss till kommande projekt och vilka möjligheter bör vi hitta för att nå en ständig förbättring kring både arbetsmiljö och sortering av avfall? Intervjuer ligger till grund för några av de slutsatser kring skillnaderna i avfallsmängderna på de båda etapperna och finns med som bilagor. (Bilaga 1, 5, 6) Resultatet från de frågeställningar som ställs under inledningsdelen ligger till grund för ”Lätt att göra rätt” – mall. Tanken att mallen ska kunna bli en poster ute på arbetsplatsen i A3 storlek. Där presenteras små enkla tips om hur avfallsmängder kan reduceras och arbetsmiljön förbättras. Avfallsmängden kan minskas genom att sortera materialet på plats och endast försöka ha det mest nödvändiga kvar. Det ger en bättre överblick över vad som finns och material som går sönder eller minskas. Det är bra att använda tiden runt raster och luncher att frakta bort material i fodervagn Starke Arvid och ta med vagnen tillbaka efter rasten. Alla ska vara delaktiga i hur arbetsplatsen utformas och vilka rutiner som bör finnas. Det gör att alla blir mer engagerade för för gjorda överenskommelser. Att vara noga med säkerheten och arbetsmiljön, t.ex. genom att hänga upp kablar från golv och tak och täcka eventuella hål för undvikande av fallolyckor. Genom att sortera upp fraktioner väl sparar det pengar på eftersortering men även återanvändning av återvunnet material. Om alla håller städningen på en bra nivå minskar dammspridningen, oreda på arbetsplatsen och materialförstörelse som resulterar i ökad avfallsmängd. Hanteringen av byggavfall kan förbättras med enkla och sunda medel, vilket skapar en tryggare arbetsmiljö och en lugnare arbetsdag. Genom dessa enkla små medel finns det både pengar att hämta, en miljö att rädda och en känsla av att komma hem hel och glad till sin familj i slutet av arbetsdagen. Det är något som vi alla vill uppnå, inte bara byggföretaget utan även individen som ska trivas med sitt arbete. Om vi slår våra kloka huvuden ihop så bygger vi en bättre och tryggare framtid för såväl naturen som individen.

Inom byggbranschen omsätts stora mängder byggavfall. Avfallet är svårt att hantera för att det består av så stora mängder. Restavfall som kommer från en byggarbetsplats källsorteras. Avfall från byggnation och rivning innehåller många olika typer av miljöfarliga ämnen, vilket förorsakar miljöföroreningar. Farliga ämnen riskerar att läcka ut i marken och ut i naturen. Branschen har funderat på om kakel och klinkers verkligen deponeras på rätt sätt idag från byggavfall och rivning. Syftet med arbetet var att undersöka om kakel och klinkers innehåller metaller som kan vara miljöfarliga. Halterna i ytskikten uppmättes och genom att utföra laktester kunde vi analysera avgivningen från materialen i olika miljöer. Det visade sig att kakel och klinker innehåller höga halter av metaller som kan läcka ut till omgivningen vid lågt pH-värde. Slutsatsen från laktesterna är att om kakel och klinker hanteras på rätt sätt i neutral eller basisk miljö är det inte miljöfarligt, eftersom samtliga utlakningsvärden vid pH åtta till tio låg inom gränserna. Men vi ser en fara om kakel och klinker hamnar i en sur miljö som har ett lågt pH runt fem till sex. Då är kakel och klinker inte inert avfall och skall alltså inte hanteras som det. Detta gör att kakel och klinker inte bör användas som till exempel fyllnadsmassor, utan att det bör deponeras som det görs idag. Arbetet bygger till stor del på diskussioner och samtal med Structor i Örebro och MTM på Örebro Universitet. / The construction industry deals with large quantities of construction waste. The waste is difficult to manage because of large amounts. Residual waste that comes from a construction site is recycled. Waste from construction and demolition includes many different types of pollutants causing environmental pollution. Hazardous substances likely to leach into the soil and into the wild. Structor have been thinking about if tile and clinkers tiles really are deposited in the right way today from construction waste and demolition. The purpose of this work is to investigate whether tile and clinker contains metals that can be harmful to the environment. The contents in the surface layers were measured and by performing leaching tests, we could analyze the leakage from materials in different surroundings. The samples proved that tile and clinker have high level of metals in the materials that can be given off to the environment at low pH. The conclusion from the leaching tests is that if the tiles are handled properly in the neutral or alkaline environment, it is not harmful to the environment because all results of leaching tests at pH values between eight and ten were within limits. But we see a danger if tiles end up in an acidic environment that has a low pH of around five to six. Then the tiles are not inert waste and therefore should not be handled like that. Tiles should thus not be used to such as aggregate, but it should be deposited as is done today. The work is largely based on discussions and conversations with Structor in Örebro and MTM at Örebro University.

El presente trabajo de investigación para optar el título en Ingeniería Civil, con énfasis en la rama de construcción, tuvo como finalidad evaluar y comparar el comportamiento del concreto con diferentes proporciones de sustitución de agregado grueso natural (AN) por agregados de concreto reciclado (ACR) con el fin obtener un diseño de concreto que permita la disminucion y uso de agregados naturales, y asi disminuir la depredacion de canteras. El comportamiento se evaluó mediante el análisis de las propiedades mecánicas y durabilidad de los tipos de mezclas realizados con el objetivo de obtener una proporción de sustitución óptima de AN por ACR para que las propiedades se encuentren dentro de los parámetros que indican las normas. Por otro lado, se realizó un modelo de una estructura aporticada para hacer una Evaluación de Impacto Ambiental mediante el uso de la metodología Life Cycle Assessment (LCA) en el programa Athena y, posteriormente, se comparó los resultados obtenidos en dicho programa. / The present research work to choose the degree in Civil Engineering, with emphasis in the construction branch, had the purpose of evaluating and comparing the behavior of concrete with different proportions of substitution of natural coarse aggregate (AN) by aggregates of recycled concrete (ACR ) in order to obtain a concrete design that allows the reduction and use of natural aggregates, and thus reduce the depredation of quarries. The behavior was evaluated by analyzing the mechanical properties and durability of the types of mixtures made with the objective of obtaining an optimal substitution ratio of AN by ACR so that the properties are within the parameters indicated by the standards. On the other hand, a model of a contributed structure was made to make an Environmental Impact Assessment by using the Life Cycle Assessment (LCA) methodology in the Athena program and, subsequently, the results obtained in said program were compared. / Tesis