A cadeia produtiva da madeira gera uma grande quantidade de resíduos sólidos em todos os seus níveis, desde o plantio até as subsequentes etapas de produção. Esses resíduos recebem destinos diferentes de acordo com fatores ligados à regionalidades, existência de mercado para absorvê-los, quantidade gerada, porte da empresa ou estabelecimento que os gera, e outras variáveis; existem no cenário nacional, duas tendências observadas na pesquisa para lidar com os resíduos de madeira: uma delas é o descarte ao ar livre ou a queima sem fins energéticos; e outra tendência é a queima para produção de energia. Apesar de se tratar de uma alternativa bastante usual, a queima desse material libera o carbono de volta para a atmosfera e não se adequa a ordem de prioridade de gestão de resíduos sólidos estabelecida por lei (12.305/2010), além de encerrar o ciclo econômico da madeira, que poderia ainda ser reciclada e comercializada sob a forma de novos produtos. Com isso, decidiu-se utilizar a maravalha, que é um dos resíduos mais comuns do processamento da madeira, como base para a produção de painéis de partículas. Além disso, suprimiu-se a etapa de homogeneização das mesmas, ou seja, elas foram utilizadas de forma integral, conforme recolhidas do chão da serraria, sem passar por um moinho e peneira. Foram utilizadas duas resinas poliuretanas de baixo impacto ambiental, e uma resina de ureia-formaladeído, e os painéis foram produzidos em alta e média densidade, com maravalhas provenientes da madeira de Pinus Elliottii, Pinus Taeda, e também de Eucalyptus urograndis. Além dos ensaios exigidos por norma, foram realizados ensaios de colorimetria, rugosidade, condutividade térmica, porosimetria por intrusão de mercúrio e microscopia eletrônica de varredura. Os resultados comprovaram a viabilidade técnica dos painéis, e mostraram que com alguns ajustes é possível melhorar as propriedades dos mesmos para que eles fiquem de acordo com as exigências de sua aplicação final. / Wood processing generates huge amounts of solid residues throughout its commercial cycle from silviculture to sawn-wood production, and the destination given to such residues is influenced by: the existence of a local market capable of absorbing it; existence of a recycling culture; technology available to transform the material into other products or energy to be imputed back to the production process; and other factors. The main trend in Brazil follows two distinct lines, in which the residues are sometimes discarded in natura or even burned without any regards to energy that is being wasted, or the residues are used to energy production. Besides being a good alternative, incinerating the residues to produce energy may not be the best way to deal with them since the carbon stored in the wood is released back to the atmosphere, and this action doesn\'t conform to the national policy on solid residues which prioritizes recycling of the material. Raw wood shavings from Pinus taeda, Pinus elliottii and Eucalyptus urograndis were used to produce the particleboards, they were collected from the sawmill floor and used without any processing to regulate the particle dimension, they were only divided into Pinusand Eucalyptus; two polyurethane and one urea-formaldehyde resin were chosen to be part of the experiment. Besides the usual tests suggested by the standards, this research also evaluated the particleboards on surface roughness, spectrophotometry, heat conduction, percentage of pores and electronic microscopy. Technical viability of the particleboards was confirmed by the tests applied, with a few refinements to be considered in order to adequate the particleboard to the final application.

Content: The understanding of how chemical, physical and environmental parameters work during anaerobic digestion production and waste treatment is an important step in improving the efficiency and process stability. This study provides the evolution of the biogas production and the efficiency of the treatment of the anaerobic digestion of solid wastes of tanneries at-line monitored in batch laboratory-scale bioreactors. Leather shavings and sludge from wastewater treatment plants substrates were considered in the study. The findings suggest that AD of the tannery solid waste can be separated into three phases: a long lag phase, a log phase with a low metabolic rate and the final phase where all the shavings were metabolized. Take-Away: The AD of the tannery solid waste can be separated into three phases: a long lag phase, a log phase with a low metabolic rate and the final phase where all the shavings were metabolized

Content: Leather goods are noble and sustainable but leather production may bear a potential for pollution. During leather manufacture high amounts of chromium shavings, wet by-products of the leather industry, are produced worldwide. Due to their chromium content they are disposed in landfill sites worldwide leading to long lasting environmental problems. They are stable towards temperatures of up to 110 °C and enzymatic degradation, preventing anaerobic digestion in a biogas plant. This stability is due to the three-dimensional native structure, typical for collagen, and additional chemical cross-links between the collagen fibers achieved by Cr3+ salts in the tanning step in tanneries. Therefore, hitherto chromium shavings are not utilized industrially to produce biogas. In order to ease enzymatic degradation, necessary to produce biogas, a previous denaturation of the native structure has to be carried out. Otherwise, the generation of biogas is hindered. In our projects, shavings were pre-treated thermally and mechanically by extrusion and hydrothermal methods. In previous works, we studied intensively the use of these shavings to produce biogas in batch scale and significant improvement was reached when using pre-treated shavings. In this work, a scale-up of the process was performed in a continuous reactor using pre-treated and untreated shavings to examine the feasibility of the considered method. Measuring different parameters along the anaerobic digestion, namely organic matter and volatile fatty acids content, it was possible to show that a higher loading rate can be used when feeding the reactor with pre-treated shavings instead of untreated shavings, which means a more economical process in an industrial scenario. Take-Away: The use of a pre-treatment improves the biogas production from chromium shavings

Made available in DSpace on 2017-07-10T15:14:24Z (GMT). No. of bitstreams: 1 DissertacaoRicardoMuller.pdf: 721365 bytes, checksum: 060a9bc0bc17116ffb07adcd9fdf3cd9 (MD5) Previous issue date: 2015-02-24 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The development of technologies for treatment of agroindustry effluents has been primarily driven by auto sufficiency energy, either thermal or electric, from biogas. The biogas processes are well resolved commercially in Brazil. However, the heterogeneity of the agroindustrial effluents demand better understanding, especially of dairy cattle. The selected farm for effluent collects does a primary treatment by means of an extruder, before the digestion process, who turns out to generate a pasty material composed primarily of wood shavings. In that context, this study aimed to evaluate the influence of wood shavings, used as bedding for the cows lactating and the production of biogas, thus, to understand the behavior of the effluent before and after the extrusion process were outlined four treatments: raw effluent, without any separation process (T1); extruded liquid effluent (T2); paste extruded effluent (T3); and white control, with only inoculum (T4). The samples were collected the months of May and April and sent to the lab CIbiogás-ER, called Labiogás where analyzed: Volatile Solids (SV); Total solids (TS); pH; maximum production of biogas and methane; and specific production of biogas and methane, by the method of German VDI 4630 (2006) in eudiômetros batch for 31 days. The results indicated that the T1 predominantly had better results than the other treatments except for the maximum production of biogas and methane, in which T3 had 94% more efficiency compared to T1, T2 and T4 to 99%, with maximum production of biogas 0,054m³ / kg substrate and 0,030m³ / kg for methane, pointing to the ability of wood shavings to absorb nutrients Essential to the process of anaerobic digestion. There were differences (P <0.05) between treatments for maximum biogas production and 99.4% was delimited the adjusted multiple linear regression model Y=13,499 + 63,256*ST + 20,485*SV - 459,234*Rend. + 485,772*Prod. That can be used in the prediction results. / O desenvolvimento de tecnologias para tratamento de efluentes da agroindústria tem sido impulsionado principalmente pela auto suficiência energética, seja térmica ou elétrica, a partir do biogás. O processo de produção de biogás apresenta-se bem solucionado comercialmente, no entanto, a heterogeneidade dos efluentes agroindustriais no Brasil demanda melhor entendimento. A fazenda escolhida para coleta do efluente faz um tratamento primário por meio de uma extrusora, antes do processo de biodigestão, que acaba por gerar um material pastoso composto basicamente por maravalha. Nesse contexto este trabalho objetivou avaliar a influência da maravalha, usada como cama para as vacas em lactação, na produção de biogás, assim, para entender o comportamento do efluente antes e após o processo de extrusão na produção de biogás, foram delineados 4 tratamentos, sendo: efluente bruto, sem qualquer processo de separação (T1); efluente líquido extrusado (T2); efluente pastoso extrusado (T3); e o branco controle, composto por apenas inóculo (T4). As amostras foram coletadas nos meses de maio e abril e encaminhadas ao laboratório do CIbiogás-ER, denominado Labiogás, onde analisou-se: Sólidos Voláteis (SV); Sólidos Totais (ST); pH; produção máxima de biogás e metano; e produção específica de biogás e metano, pelo método da norma alemã VDI 4630 (2006) em eudiômetros de batelada durante 31 dias. Os resultados obtidos indicaram que o T1 teve predominantemente resultados mais satisfatórios que os demais tratamentos com exceção da produção máxima de biogás e de metano, no qual o T3 teve 94% mais eficiência em relação a T1, T2 e 99% ao T4, apresentando produção máxima de biogás de 0,054m³/kg de substrato e 0,030m³/kg para metano, tornando evidente a capacidade da maravalha em absorver nutrientes essenciais para o processo de digestão anaeróbia. Houve diferença (P<0,05) entre os tratamentos para a produção máxima de biogás e com 99,4% delimitou-se o modelo de regressão linear múltipla ajustado Y=13,499 + 63,256*ST + 20,485*SV - 459,234*Rend. + 485,772*Prod. que pode ser usado na predição de resultados.

Submitted by Karina Calciolari null (karinaveterinaria@hotmail.com) on 2016-04-18T19:09:55Z No. of bitstreams: 1 Dissertação_Karina Calciolari.pdf: 3537872 bytes, checksum: 25bdb76342a16861139075d0c9e32394 (MD5) / Approved for entry into archive by Felipe Augusto Arakaki (arakaki@reitoria.unesp.br) on 2016-04-19T17:12:27Z (GMT) No. of bitstreams: 1 calciolari_k_me_jabo.pdf: 3537872 bytes, checksum: 25bdb76342a16861139075d0c9e32394 (MD5) / Made available in DSpace on 2016-04-19T17:12:27Z (GMT). No. of bitstreams: 1 calciolari_k_me_jabo.pdf: 3537872 bytes, checksum: 25bdb76342a16861139075d0c9e32394 (MD5) Previous issue date: 2016-02-22 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / As afecções do sistema respiratório são a segunda causa de queda de desempenho e afastamento dos equinos do esporte ou trabalho, as quais estão atrás somente das desordens musculoesqueléticas. A estabulação e alimentação a base de fenos predispõe os equinos a inalação de grande número de agentes irritantes as vias aéreas. No intuito de mensurar a influência dos tipos de cama utilizado em baias de equinos nas respostas alérgicas das vias aéreas estudou-se 3 grupos com 5 equinos cada sendo dois mantidos em cocheiras com diferentes tipos de forração à base de madeira (maravalha de pinus autoclavada-MA e serragem-SE) e por último um grupo controle à pasto por 45 dias com avaliações quinzenais (D0, D15, D30 e D45). Foi realizado nestes momentos o exame físico, coleta de amostras de sangue venoso e arterial para realização de hemograma e hemogasometria respectivamente, lavado broncoalveolar com análise citológica e mensuração de fosfatase alcalina, além de amostras das camas (limpa e suja) e feno pré-secado para análise micológica. No exame físico foi notado tosse e espirros em maior intensidade e número nos equinos do grupo SE. A análise hematológica permaneceu dentro dos padrões de normalidade. Já nos achados hemogasométricos os maiores valores de pH foram observados nos equinos à pasto (7,47 ± 0,02). Nos grupos embaiados foi observado valores de pressão parcial de dióxido, de D15 à D45, inferiores (valores entre 38,3 a 43,7 mmHg) ao grupo a pasto (valores entre 43,7 a 46,5 mmHg), sendo os valores de pressão parcial de oxigênio inversamente proporcionais (MA e SE: valores entre 103,6 a 127,78 mmHg e à pasto: 88,2 a 103,6 mmHg). Os principais achados no lavado broncoalveolar basearam-se na contagem de células nucleadas totais no que apresentou maiores valores em todos os momentos nos animais à pasto (251,0 a 336,8 x 103/ µL), seguido do grupo SE (197,0 a 248,6 x 103/ µL) e por último o MA (140,6 à 270,2 x 103/ µL). Dentre as células nucleadas os macrófagos representaram maior porcentagem seguidos dos linfócitos (51,2 a 80,8% e 6,6 a 33,2% respectivamente). Um padrão inesperado foi observado na população de neutrófilos, os quais com os passar dos momentos houve decréscimo, com excessão do grupo MA que apresentou um pico no D30 (35%), relacionado ao pico de fosfatase alcalina (27,6 ± 14,98 UI/L) neste mesmo momento. Foram identificados cerca de 12 gêneros fúngicos em ambas camas e 17 no alimento volumoso, sendo neste último encontrado gêneros patogênicos como Aspergillus (0,85 ± 2,2%), Fusarium (5,35 ± 9,23%) e Penicílium (4,81 ± 9,53%), porém em baixas porcentagens. A principal diferença entre as camas baseou-se na capacidade da produção e dispersão de partículas finas passíveis de inalação, a qual foi maior para a serragem (MA: 15,29 % e SE: 18,28%). Concluiu-se que a cama de maravalha além de ter manejo mais fácil, apresentou menor capacidade irritativa das vias aéreas superiores do que a serragem. As condições de manejo e estabulações utilizadas foram ideais, servindo de modelo quanto a ventilação e higienização das baias. / Horse respiratory diseases is second most commom cause of poor performance and premature retirement, which the one are musculoskeletal disorders. The stabling and poor quality feedings may the favor predispose of diseases in airways. In order we measure the influence of the types of bedding used in the horse stalls about responses allergic airway. Three groups of five horses each are formated, two groups kept in stables but each group with a different type of bedding (autoclaved wood- MA shaving and sawdust-SE) . The third group is the control and stays at pasture. The groups remained in this condition for 45 days with biweekly reviews (D0, D15, D30 and D45). It was realize the physical examination, venous and arterial blood samples collection to realize hemogram and hemogasometry analysis, the bronchoalveolar lavage samples was colected to realize the cytological analysis and to measure alkaline phosphatase. In addition, samples of the beds (clean and dirty) and haylage was collected to realize mycological analysis. In the physical examination was noticed higher intensity of coughing and sneezing at SE group. Hematological analysis remained within the normal standards. Findings of hemogasometric analysis were observed the biggest pH values at horses to pasture (7.47 ± 0.02). At stables horses was observed smaller values of partial pressure dioxide (D15 to D45), (values between 38.3 to 43.7 mmHg) to horses to pasture (values between 43.7 to 46.5 mmHg). The values oxygen partial pressure it was inversely proportional to partial pressure dioxide (MA and SE: values between 103.6 to 127.78 mmHg and pasture: 88.2 to 103.6 mmHg). It was observate higher values of nucleated cells of bronchoalveolar lavage, at all times, in animals to pasture (251.0 to 336.8 x 103 / mL), followed by the SE group (197.0 to 248.6 x 103 / mL) and finally MA group (140.6 to 270.2 x 103 / mL). The macrophages cells represented the biggest percentage of nucleates cells on bronchoalveolar lavage followed by lymphocytes (51.2 to 80.8% and 6.6 to 33.2% respectively). An unexpected pattern was observed in percentange of neutrophils cells, that it was a decrease over the time. One exception it was with MA group that had the biggest percentage values in D30 (35%), it was related to alkaline phosphatase peak at same time (27.6 ± 14.98 IU / L). Were identified about 12 fungi genres in both beds and 17 fungi genres at haylage. We indentified pathogenic genres in haylage as Aspergillus (0.85 ± 2.2%), Fusarium (5.35 ± 9.23%) and Penicillium (4 , 81 ± 9.53%), however in lower percentages. It was observate a difference production capacity and fine particle dispersion between the bed, that the biggest it was notice at sawdust (MA: 15.29% and SE: 18.28%). It was concluded that wood shavings bed is easier to use and showed less irritative capacity upper airway to que sawdust. As management and stabling conditions used were ideals and it was a ideal model of stables.

This study evaluated physical and biological treatments of bio-oil process water to decrease organic contaminants. A three-sequential-column filtration system compared four treatments: three columns filled with kenaf only; three columns filled with wood shavings only; first column filled with wood shavings and two with kenaf; and first column filled with kenaf and two with wood shavings. The kenaf and wood shavings were composted after filtration. The filtrate water underwent further bio-treatment by adding aeration and selected bacteria. After filtration and bio-treatment, oil and grease concentrations were reduced over 80 percent and toxicity reduced over 90 percent. There were no significant differences among filtration treatments. Most of the oil and grease was removed by the first column. Aeration significantly decreased the concentration of oil and grease and toxicity in the filtrate water. Composting of the bioiltration matrices significantly reduced the oil and grease concentrations at day 45 by 80 percent.

Tyrimai atlikti 2008–2009 m. Lietuvos žemės ūkio universiteto Agroekologijos centro ekologinės gamybos ir mokomajame (chemizuota gamyba) ūkiuose. Darbo tikslas - įvertinti ekologinės žemės ūkio gamybos įtaką dirvožemio savybėms ir kviečių grūdų kokybei. Naudotos atestuotos ekologinei gamybai trąšos Ragų drožlės (RD) ir Ragų geluonių miltai (RGM). Kontroliniame variante K0 veislės Širvinta1 gauti 1,9 t ha-1 ir Ada 1,8 t ha-1 kviečių grūdų derliai. Tręšimai atlikti: rudenį prieš sėją N30 ir pavasarį krūmijimosi tarpsnyje N50 aktyviojo azoto kiekiai. Nustatyta, kad naudojant ekologiškas trąšas RD gautas Širvinta1 2,5 t ha-1ir Ada veislės 2,9 t ha-1 žieminių kviečių derlingumas; naudojant trąšas RGM gauti atitinkamai 2,2 t ha-1 ir 2,5 t ha-1 derlingumai, Chemizuotame ūkyje naudojant įprastinį tręšimą bei augalų apsaugos priemones – 5,5 t ha-1 Širvinta1 ir 4,7 t ha-1 Ada veislės žieminių kviečių derliai. Ekologinėje gamyboje didžiausi baltymų, šlapiojo ir sausojo glitimo kiekiai Širvinta1 ir Ada veislės grūduose nustatyti naudojant ekologinę trąšą Ragų drožlės. / The research on effects of fertilizers, certified in organic agricultural systems, on the productivity and chemical composition of winter wheat was carried out on the farm of organic production in the Center of Agroecology at Lithuanian University of Agriculture in 2008-2009. Research goal – to evaluate influence of organic farming to soil properties and wheat grain quality.It was found that using Ragų drožlės produces a significant increase of 0,59 - 1,15 t ha-1 or 30 - 65 per cent in winter wheat productivity. Using Ragų drožlės produced a higher increase in grain productivity than using Ragų geluonių miltai. Using Ragų drožlės also produced significantly higher protein content, sedimentation and number of fall results in wheat yield.

Made available in DSpace on 2014-08-20T14:38:43Z (GMT). No. of bitstreams: 1 Dissertacao_Gabriel_Almeida.pdf: 2251762 bytes, checksum: f48973cb39ff1566f7617f9742859cc5 (MD5) Previous issue date: 2011-04-25 / A trial was conducted to evaluate earthworm composting as an alternative for treating a mixture of bovine manure, wood shavings and rice hull ash, in order to produce an organic fertilizer. The fertilizer might be sold, becoming an alternative income for dairy cattle producers and reducing the environmental impact of dairy cattle activity, turning it into an environmental friendly and economic activity. Earthworm composting took place in 20 wood boxes (0.40m x 0.50m x 0.30m). Each box received 300 earthworms (Eisenia andrei). A total of five treatments with four replications were studied: T1 (100% bovine manure); T2 (50% bovine manure + 25% wood shavings + 25% rice hull ash); T3 (33% bovine manure + 33% wood shavings + 33% rice hull ash); T4 (25% bovine manure + 50% wood shavings + 25% rice hull ash); and T5 (25% bovine manure + 25% wood shavings + 50% rice hull ash). A completely randomized design was used. ANOVA was used for data analysis and the averages were compared by Tukey test at 5%. Humus samples were collected at day 45 and at the end of trial (day 60). The following variables were studied: pH, dry matter, ash, organic matter, carbon, nitrogen, C/N ratio, phosphorus, calcium, potassium and magnesium. Earthworm composting of pure bovine manure is an effective alternative for treating such dairy cattle production residue. The produced humus contains physical and chemical properties which allow it to be used as an organic fertilizer. However, the mixture of wood shavings and rice hull ash does not produce a good quality fertilizer, according to the current Brazilian legislation. / O presente trabalho teve como objetivo o estudo da vermicompostagem como tratamento de esterco bovino misturado com serragem e cinza de casca de arroz, a fim de produzir um adubo orgânico com qualidade para ser comercializado e gerar uma fonte extra de renda para os produtores de gado de leite, minimizando assim os impactos ambientais gerados por este setor e tornando-o mais sustentável ambientalmente e economicamente. A vermicompostagem foi realizada em 20 caixas de madeira com dimensões de 0,40m x 0,50m x 0,30m instaladas em minhocário coberto. Em cada caixa foram inoculadas 300 minhocas da espécie Eisenia andrei. Foram testados cinco tratamentos com quatro repetições cada: T1 (100% esterco bovino); T2 (50% esterco bovino + 25% serragem + 25% cinza de casca de arroz); T3 (33% esterco bovino + 33% serragem + 33% cinza de casca de arroz); T4 (25% esterco bovino + 50% serragem + 25% cinza de casca de arroz); e T5 (25% esterco bovino + 25% serragem + 50% cinza de casca de arroz). O delineamento experimental foi inteiramente casualizado e o período experimental foi de 60 dias, sendo que a amostragem do húmus foi realizada aos 45 e aos 60 dias. Foram avaliados o pH, os teores de matéria seca, cinzas, matéria orgânica, carbono, relação C/N, nitrogênio, fósforo, cálcio, potássio e magnésio em todos os vermicompostos. Verificou-se que a vermicompostagem de esterco bovino puro é uma alternativa para o tratamento desse resíduo gerado no sistema de produção de gado de leite, pois o húmus produzido possui ótimas características químicas para ser utilizado na agricultura ou comercializado. Entretanto, as misturas com serragem e cinza de casca de arroz, nas proporções utilizadas, não produziram um adubo de qualidade conforme os parâmetros exigidos pela legislação.i.

En la presente investigación realizada se evaluaron las propiedades físicas de los agregados, para el cual se ejecutó diseños de mezclas con la finalidad de determinar las propiedades mecánicas del concreto adicionado con viruta de acero fundido en porcentajes de 3% ,6% y 9% como reemplazo parcial del agregado fino. La finalidad de evaluar las propiedades mecánicas del concreto adicionado con viruta de acero fundido, es comprobar la resistencia a la compresión, tracción y flexión en los diferentes porcentajes y edades. Para los ensayos se realizaron diseños de concreto patrón y concreto con adición de viruta acero fundido, según la norma (ACI 211, 2009) para una resistencia a la comprensión de 210 kg/cm2. El estudio estimo la evaluación de las propiedades mecánicas del diseño de concreto patrón en estado fresco (temperatura, slump, peso unitario), y en estado endurecido (resistencia a la compresión, flexión y tracción), evaluación que se realizó también en el diseño de concreto con adición de viruta de acero fundido al 3%, 6% y 9%. Al finalizar los ensayos se observó que el diseño de estudio de concreto con adición de viruta de acero fundido aumenta su resistencia a la compresión, flexión y tracción. / In the present investigation carried out, the physical properties of the aggregates were evaluated, for which mixture designs were executed in order to determine the mechanical properties of the concrete added with molten steel shavings in percentages of 3%, 6% and 9% as partial replacement of fine aggregate. The purpose of evaluating the mechanical properties of concrete added with molten steel shavings is to check the resistance to compression, traction and bending in the different percentages and ages. For the tests, designs of standard concrete and concrete with addition of cast steel shavings were made, according to the (ACI 211, 2009) standard for a resistance to compression of 210 kg / cm2. The study estimated the evaluation of the mechanical properties of the pattern concrete design in the fresh state (temperature, slump, unit weight), and in the hardened state (resistance to compression, bending and traction), evaluation that was also carried out in the design of concrete with addition of 3%, 6% and 9% cast steel shavings. At the end of the tests, it was observed that the concrete study design with the addition of molten steel shavings increases its resistance to compression, bending and traction. / Tesis

El siguiente Trabajo de Investigación se realizó con la finalidad de analizar el comportamiento de un Concreto con Agregado Grueso Reciclado, Agregado Fino Natural y adicionando Virutas de Acero con un porcentaje de 8%, 10% y 12% con respecto al Agregado Fino y determinar el aumento de las Resistencias a la Compresión, Flexión y Tracción en cada uno de los casos. El proceso comienza por conseguir los materiales; concreto reciclado producto de residuos de construcción y demolición y Virutas de Acero producto de residuos de procesos mecánicos. Se realizaron ensayos en laboratorio de los agregados y de las virutas para la identificación de sus propiedades y ser utilizados como datos para elaborar el diseño de mezcla correspondiente a cada caso. Teniendo ya los diseños para los 4 casos, se elaboraron en 48 probetas, 12 por cada diseño, en el ensayo de resistencia a Compresión, mientras en el ensayo de resistencia a Flexión, se elaboraron 12 vigas y para el ensayo a resistencia a Tracción se 12 probetas, haciendo un total de 72 especímenes, los cuales serán analizados a los 7, 14, 21 y 28 días de curado con la finalidad de determinar el porcentaje óptimo de adición de Virutas de Acero y el Costo de Producción de este, demostrando de esta manera que se puede obtener un concreto eficiente y a un precio económico. / The following research work has been carried out with the purpose of analyzing the behavior of a concrete with coarse recycled aggregate, natural fine aggregate and adding steel chips with a percentage of 8%, 10% and 12% with respect to the aggregate and determining the increase of the resistance to compression, flexion and compression in each of the cases. The process begins by getting the materials; Recycled concrete, product of construction and demolition waste and steel shavings, product of mechanical process residues. Aggregates and Chips were tested in the laboratory for their characterization and used as input data to carry out the Mix design corresponding to each case. Having already the designs for the 4 cases, they were elaborated in 48 specimens, 12 for each design, in the Compression test, while in the Bending test 12 beams were developed and for the Tensile test 12 specimens were developed, making a total of 62 specimens, which will be analyzed at 7, 14, 21 and 28 days of curing in order to determine the optimal percentage of addition of Steel Shavings and the Cost of Production of this, thus demonstrating that a efficient concrete at an economical price. / Tesis