05.1 - Graduação (UACSA)

URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/2909

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Gestão de resíduos de construção e demolição aplicada no município do Recife
(2017-08-08) Santana, Vitor Carneiro de; Galvão, Simone Perruci; http://lattes.cnpq.br/1523292800241605; http://lattes.cnpq.br/6721685438361084
Civil construction is one of the sectors with the largest participation in the Brazilian economy. However, the high dynamism of this activity leads to an increase in the generation of construction and demolition waste (RCD), promoting greater environmental impacts if managed improperly. For this reason, it becomes relevant to know the main measures adopted by civil construction companies and by the municipal bodies competent for the prevention and final destination of these wastes. This study presents an exposition of the main management policies of construction and demolition waste adopted by the public management of the city of Recife and in five works located in the municipality. In order to do this, we carried out on-site visits to buildings and to the Urban Maintenance and Cleaning Company (EMLURB), in order to obtain data pertinent to the research. The data were collected through interviews, using an electronic questionnaire associated to the virtual platform Google Forms as an instrument. The information acquired was verified according to the guidelines of CONAMA Resolution Nº 307/2002. Thus, it was verified the existence of municipal legislations on the adequate destination of RCD that assign responsibilities to the companies and the municipal organs of urban cleaning. Regarding waste management, it was verified that the type of disposal most adopted among the companies of this study was the collection and final disposal of private landfills, while one of the companies adopts the waste recycling service for reuse in the work.
Análise de mapa de danos das fachadas de igrejas históricas tombadas localizadas no município de Jaboatão dos Guararapes
(2017-08-29) Silva, Anderson José da; Araujo, Fernanda Wanderley Correa de; http://lattes.cnpq.br/7616387320307731; http://lattes.cnpq.br/0895425089026343
The facade of a building is the system that first impresses people. In this sense, they can cause the appreciation or the devaluation of the property, depending on parameters such as the presence of pathologies and the architecture employed. The historic building will always present a greater difficulty to appreciate its facade, since the external agents have caused a constant decrease of its useful life over the years. The present study intends to analyze how the current state of conservation of the main facades of the historical churches is located in the municipality of Jaboatão dos Guararapes through the construction of damage maps. In this context the buildings treated were: the Church of Our Lady of Piedade, the Church of Our Lady of Prazeres and the Church of Our Lady of Loreto. It was necessary to make a bibliographical survey about the most recurrent pathologies to these systems and obtained the following parameters: mold / mildew, paint stripping, vegetation, detachment and cracks. For the recognition of these pathological manifestations, techniques were used for preliminary inspections, with on-site visits, visual inspections and photographic records. After due treatment of the data, it was observed that the humidity and the precipitation incidence were the factors that contributed the most to the pathologies in these frontispieces, because both contributed to the proliferation of fungi and vegetation and to the superficial erosion of the rocks.
Classificação e quantificação dos resíduos de construção e demolição (RCD) e suas pontencialidades de reciclagem ou reutilização em cinco obras de edificação na cidade do Recife
(2017-08-30) Amorim Júnior, Laelson de Andrade; Galvão, Simone Perruci; http://lattes.cnpq.br/1523292800241605; http://lattes.cnpq.br/7943300714310248
The city of Recife, region with several natural landscapes and attractive for tourism, business and leisure, has been developing annually. In most of the neighborhoods, there are large buildings being erected, leading the academic community and the state to worry about the type of policy adopted for the disposal, reuse and recycling of solid waste generated in construction, in order to avoid the environmental impact. In the Northeast Region of Brazil alone, 24,310 t / day of construction and demolition waste (CDW) were collected. Good results have already been visualized by Brazilian researchers regarding the reuse of residues, especially those of class A, generated on site. This work has proposed to classify the different types of construction and demolition waste and to indicate different forms of reuse in construction works in the city of Recife. Five (5) works were evaluated, from four (4) companies, located in different districts of Recife. To obtain the desired data, an electronic questionnaire, google forms platform, was developed by the research group. The construction traditional system of reinforced concrete was the main visualized in the works analyzed, generating as main types of residues: ceramic bricks, mortars, plaster, concrete and wood. In this work, recycling practices were verified in one of the analyzed companies, where brick and tile residues were reprocessed and used as a small aggregate for making mortars and lean concrete. However, the vast
Avaliação das características geomecânicas do solo da área destinada à construção do campus definitivo da Unidade Acadêmica do Cabo de Santo Agostinho - UFRPE
(2017-08-31) Couto, André Vinícius Melo; Lins, Cecília Maria Mota Silva; http://lattes.cnpq.br/4861195143983172; http://lattes.cnpq.br/4544033112109443
Classificação dos resíduos de construção e demolição (RCD) e potencialidades de reciclagem ou reutilização em obras de edificação na região de Ipojuca: Muro Alto
(2017-09-01) Nascimento, Lucas Costa do; Galvão, Simone Perruci; http://lattes.cnpq.br/1523292800241605; http://lattes.cnpq.br/7949189322240161
The environmental concern is recurrent in today's world, and the practices developed by both society and government aim to reduce the number of waste disposed indiscriminately in the environment are inevitable. Construction and demolition waste (RCD) discarded and exposed irregularly in the urban environment, generates the proliferation of vectors, among other negative aspects, being this over the years studied, assuming a possible material potential for reuse. With the objective of quantifying and characterizing the types of construction and demolition residues from buildings (vertical constructions) in the city of Ipojuca: Muro Alto, and later establishing a specific use for the reuse of these wastes, a field research was carried out , from questionnaires and the consultation of PGRCCs of medium and large companies, in the indicated districts. It was concluded that large construction companies that have certifications such as ISO 9001 and 14001, follow, in great part, waste management policies. Meanwhile, the medium-sized construction company analyzed, without strict control and planning, the RCD generated on site. Much of the waste generated by the companies is rubble or debris: remnants of mortars, concrete - demolition, remains of tiles, class A waste, which can be reused and recyclable.
Estudo de viabilidade de um muro residencial sustentável para aproveitamento de água da chuva
(2017-09-01) Brito, André William Barbosa; Millán, Miguel Alejandro Zorro; http://lattes.cnpq.br/9473835336187621; http://lattes.cnpq.br/1589879584642925
Brazil is a privileged country in the world due to its hydrographic wealth. However, there are regions of the country where rates of water shortage are alarming. One example is the Brazilian northeast, which faces a water crisis during most of the year. In addition, the consumption of drinking water for activities that do not require this water has grown. In this context, the main objective of this research is to analyze the feasibility of installing a sustainable residential wall for the use of rainwater in the municipality of Cabo de Santo Agostinho, as a solution for the adequate use of drinking water and a way of minimizing water shortage. For the development of this study, rainfall data were obtained from the city and the metropolitan area of Recife and dimensioned horizontal gutters and ducts according to NBR 10844 (1989). In addition, a model residence was chosen according to the socioeconomic aspects of the municipality, the costs and ways of obtaining materials from the wall were analyzed, as well as its efficiency in relation to the rainfall data of the region where the house is located during the months of the year. It is demonstrated that the sustainable wall for the use of rainwater can be feasible to be applied in Cabo de Santo Agostinho, since it presents low cost compared to other forms of vertical reservoirs, good efficiency and simplicity in its installation, providing a great shape and adequate use of rainwater.
Produção de nanopartículas magnéticas aplicada ao processo de tratamento de efluentes oriundos das indústrias têxteis
(2018-08-27) Damasceno, Bárbara Souza; Araújo, Ana Cláudia Vaz de; http://lattes.cnpq.br/6861890992609511; http://lattes.cnpq.br/6533105269743189
Iron oxide magnetic nanoparticles (NPs) were synthetized by chemical coprecipitation method under ultrasound. Synthetized NPs were characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, porosimetry and magnetometry. The crystalline phase of the obtained NPs was identified as maghemite and the crystallite average size was estimated by Scherrer equation around 31.5 nm. The FTIR spectra presented distinct absorptions bands at corresponding to intrinsic stretching vibrations of Fe–O bond at the iron oxides. Langmuir and BET surface areas of as-formed samples is 220,15 ± 19,81 m2 g-1 and 127,19 ± 4,94 m2 g-1 respectively. NPs samples present ferromagnetic behavior and saturation magnetization (SM) value of 46 emu g-1. Adsorption performances on synthetized and commercial nanoparticles were investigated and compared. The influences of parameters including pH, dye concentration, and agitation time have been investigated in order to find the optimum adsorption conditions. Parameters as pH 4.0, with 150 min of contact time and dye concentration of 20 mg L-1 were chosen. Adsorption results indicate that the isotherm and kinetics for dye adsorption on NPs obey Freundlich isotherm and pseudo-second-order kinetic, respectively. The maximum dye (20 mg·L-1) removal efficiency to maghemite NPs was found to be 43% and to commercial magnetite NPs was 33%. For the same experimental conditions, maghemite also had better application of the available area for adsorption than the magnetite NPs, presenting values of 8.80 mg g-1 and 6.12 mg g-1, respectively.
Análise técnico econômica do maquinário da oficina mecânica do Instituto Nacional de Tecnologia em União e Revestimento de Materiais
(2019-01-21) Assis, Lilian Kássia Cavalcante da Silva de; Montoya, Maxime; http://lattes.cnpq.br/2179327647405825; http://lattes.cnpq.br/0782464542495200
Aplicação de nanomateriais advindos de biomassa para tratamento de águas residuárias da indústria têxtil
(2019-01-25) Nascimento, Rizia Keila do; Araújo, Ana Cláudia Vaz de; http://lattes.cnpq.br/6861890992609511; http://lattes.cnpq.br/8972131109377770
The inadequate disposal of industrial effluents has caused serious problems of environmental contamination worldwide. In the textile pole of Pernambuco some cases of river pollution were reported due to the process of dyeing and washing of fabrics. In this work, the feasibility of the use of nanostructured carbonaceous materials (CN) in the adsorption of textile dyes is studied. To obtain the carbonaceous material sugarcane leaves were used, these were washed, dried, crushed and submitted to hydrothermal synthesis. The samples were characterized by X-ray diffractometry (XRD), infrared (IR) spectroscopy, thermogravimetric analysis (TGA) and porosimetric analysis. The synthesized materials were presented as finely divided dark powders. In adsorption analyzes of the indigo carmine and red congo dyes the nanomaterials showed to be promising adsorbents. It was possible to observe a favorable behavior in relation to the adsorption of the dyes in liquid medium. The Langmuir, Freundlich and Redlich- Peterson isotherm models were suitable for the studied materials. The kinetic adsorption analysis suggests a pseudo second order behavior. The adsorptive mechanism of the nanomaterials could be characterized as heterogeneous, with adsorbate / adsorbent interactions of a chemical nature, where adsorption in monolayers is carried out at low concentrations and in multilayers at high concentrations of dye.
Estudo do comportamento mecânico de estruturas submetidas a corregamento estático
(2019-01-31) Araujo, Joice Ferreira Nunes de; Silva, Jordlly Reydson de Barros; http://lattes.cnpq.br/4382584044561547; http://lattes.cnpq.br/6554335127800409
During the structural design, it is essential to know the mechanical behavior of structural elements once it enables to understand the deformation and the internal forces acting in the system. However, until the mid-twentieth century, for certain types of structures, performing this analysis accurately was a challenging task because of the difficulty and quantity of calculations involved. This scenario began to change with the advent of the computer, which allowed the application of mathematical techniques, such as the Finite Element Method, to structural analysis, providing greater precision in the evaluations. Thus, based on the importance of these for civil construction, this work had as objective to provide the interpretation of the mechanical behavior of a deep beam subjected to static loads. For this, the software ABAQUS/CAE, student version 2018, was used to simulate the chosen example, detailing each step of the simulation process and how each of these can influence the results. Therefore, the computational simulation of the deep beam allowed to analyze the stress distribution along the element.
Avaliação das propriedades mecânicas de um concreto não estrutural utilizando agregado de PET em substituição ao agregado miúdo
(2019-02-01) Meireles, Hygor Alves; Galvão, Simone Perruci; http://lattes.cnpq.br/1523292800241605; http://lattes.cnpq.br/4436024273659412
Monitoramento físico-químico e ambiental dos solos do Complexo Industrial Portuário de Suape, Região Metropolitana do Recife, Pernambuco, Brasil
(2019-05-22) Silva, Rodrigo Atanasio; Moraes, Alex Souza; http://lattes.cnpq.br/0440163845324480; http://lattes.cnpq.br/9853341999557777
The present work refers to the study of the physical and chemical characteristics of the soils located in the areas of the Industrial and Port complex of Suape. They were obtained by carrying out a collection in 11 points spread within an area of 450 m², uniformly determined, to have a greater and better representation of the study area. The analyzes made in the laboratory served to determine the granulometry, consistency limits, color and main elements present in the different types of soils. The results obtained show a grouping of two large groups S8, S9, S3, S4, S2, S5 and S7, S11, S10, S6, S1 the first group presents soils with darker colors that are linked with the high amount of clay and the high value of IP. The second group has lighter colors and low amounts of clay, consequently, low IP values.
Análise de viabilidade entre concretos dosados pelos métodos da ACCP/ACI e IPT/USP
(2019-07-08) Nascimento, Lucas Costa do; Araújo, Fernanda Wanderley Correa; http://lattes.cnpq.br/7616387320307731; http://lattes.cnpq.br/7949189322240161
The proper determination of the proportion of materials in the production of a concrete can imply a significant reduction of the final cost of work, since it is one of the materials most used in construction. The wide use in civil works indicates the need to rationalize the quantity of materials composing the mixture by determining an efficient feature that allows an adequate interconnection between the different physical properties required of a concrete with the lowest possible cost. This study presents a comparative analysis of physical and mechanical properties, material consumption and cost between two dosing methods: the one proposed by the Brazilian Portland Cement Association (ABCP), which is an adaptation of the ICA method, and the experimental method IPT / EPUSP. From initial parameters (concrete volume, compressive strength, cone trunk abatement and physical properties of cement and aggregates) and following the prescriptions and steps described by the methods, the respective traces were determined for the molding of a certain amount of ruptured specimens aged 14 and 28 days. With the obtained data, it was verified that both methods are able to provide concretes with the predefined physical properties. In terms of cost, the financial analysis of material consumption, based on the reference prices of the National System of Costs Survey and Civil Construction Indices (SINAPI / PE April-2019), verified a greater material saving by the IPT / EPUSP.
Análise dos tipos de cura e sua influência no ganho de resistência à compressão em um concreto convencional
(2019-07-08) Silva, Jéssica Ferreira da; Galvão, Simone Perruci; http://lattes.cnpq.br/1523292800241605
The curing procedure consists of protecting the surface of the concrete from the environment to which it is exposed, avoiding the excessive loss of water from kneading and early formation of cracks. Is essential for the development of concrete strength and for its integrity in the first moments of the hydration. The order to analyze the different curing methods and their influence on the property of characteristic resistance to the compression of a conventional concrete for 30MPa, it work examined three types of cure, among them: thermal cure at 70ºC, wet cure by immersion in water and wet cure by immersion in calcium hydroxide solution. For the thermal curing a device was developed using the Arduino so that the expected conditions were reached. From the analysis obtained in this work it was observed that the thermal and wet curing by immersion in water were more effective at the age of 7 days, compared to the wet curing in saturated lime solution. At 28 days, the cure by immersion in calcium hydroxide solution showed the highest strength gain compared to other types of cure, showing an increase of 1.42 MPa compared to the cure made by immersion in water for 3 days, and 1.97 MPa in relation to thermal cure.
Análise do processo adsortivo de corantes industriais por nanopartículas magnéticas de magnetita (Fe3O4)
(2019-07-08) Cabral, Ariane Nathália de Siqueira Souza; Araújo, Ana Cláudia Vaz de; http://lattes.cnpq.br/6861890992609511; http://lattes.cnpq.br/3246406733304902
Environmental degradation is an inevitable factor that accompanies the development of the population and unfortunately this has reached water systems, rivers and water sources. Among the agents that contribute to the contamination and degradation are the dyes from the textile and food industries that are discarded throughout the production processes. There are several methods being developed to eliminate the effluent dyes in rivers and springs, among which is the adsorption process. The magnetic nanoparticles of magnetite (Fe3O4) have been previously tested in the adsorption of dye residues from the textile and food industries. In this context, the objective of this work was to study the efficiency of magnetic nanoparticles of magnetite (NPs) in the adsorption process of some dyes present in industrial textile effluents, such as dyes, methyl orange (MEL) and methylene blue (AM) . A factorial design 2³ was established obtaining as factors studied time, pH and temperature, and for these factors its levels were analyzed. Analyzes were made for systems under ultrasound and under magnetic stirring, and for this, significant results were obtained for the two dyes. According to the results obtained for the ALM / NPs, factors such as time and pH with greater significance. It was observed that the most successful tests for adsorption were the tests 02 (11,362) and 06 (10,057), for the systems under ultrasound and under magnetic stirring, respectively. For the AM / NPs it was significant only the factor, time. The most favorable tests for the dye adsorption system were 04 (19,144) and 06 (21,457), for systems under ultrasound and under magnetic stirring, respectively.
Avaliação da resistência a corrosão de revestimentos à base de níquel depositados em aços API 5L X70 por soldagem plasma pó
(2019-07-09) Nascimento Junior, Josimário do; Santos, Aureliano Xavier dos; http://lattes.cnpq.br/0810494477757052; http://lattes.cnpq.br/2089402782247306
Corrosion failures are the leading ause of leakage in the oil industry. For this reason, the use of new materials with better resistance to this phenomenon has been very studied. One of the most used alternatives, due to the lower cost involved, is the application of coatings with these materials through welding processes. this work has the objective of evaluating the corrosion resistance of coatings based on nickel alloys in different welding parameters. As base metal using was API 5L X70 steel sheets and as addition metal, it binds to the Ni base of Nickel, Inconel 625 in a powder. as experimental tool was used experimental planning 2³ plus central point, associated to the surface response technique (MSR). The geometric characteristics, dilution, iron content and finally, electrochemical measurements of corrosion were made, were coated and subjected to heat treatment. the experimental results indicate that lower dilution values and iron content provide high corrosion resistance.
Planejamento da manutenção do maquinário da oficina mecânica da Unidade Acadêmica do Cabo de Santo Agostinho-UACSA
(2019-07-09) Assis, Lilian Kássia Cavalcante da Silva de; Silva, Karla Carolina Alves da; http://lattes.cnpq.br/6261877082189807; http://lattes.cnpq.br/0782464542495200
The proper performance of the maintenance, in the most varied equipment and services, in the various sectors, have as some of the consequences obtained for the conservation, efficiency and lucitivity involved. Thus, a maintenance routine was developed for the UACSA mechani- cal workshop, based on the concepts generated by the Maintenance Planning and Control stra- tegy (MPC). Through the study of the field under analysis, it was possible to define the pre- ventive method to elaborate the maintenance plans, due to the physical conditions observed in the place and in the equipment of said workshop. A follow-up of execution of the maintenan- ce plans was also prepared, with the secondary objective being the evaluation of the efficien- cy of the plans elaborated with the implementation of a maintenance indicator. Due to the analyzed circumstances, it is believed that the work carried out will meet the needs of the workshop, as well as meet the expectations through its execution, perceived from the evalua- tion of its temporal registers.
Projeto estrutural de vigas-parede biapoiadas de concreto armado
(2019-07-09) Couto, André Vinícius Melo; Silva, Jordlly Reydson de Barros; http://lattes.cnpq.br/4382584044561547; http://lattes.cnpq.br/4544033112109443
The purpose of this work is to present the main fundamentals of single-span deep beams structural design, and analyze these elements through the Finite Element Method (FEM), using ABAQUS/CAE software, student version. During the study, a design procedure is discussed, which is implemented in the Smath Studio software. A discussion is also made about the FEM modeling procedure, such as the deep beam information implementation, such as material, supports and applied loads. Thus, for a problem present in the literature, the support tensions, provided by the software are compared, verifying the proximity of the answers obtained. Finally, a parameter study of the problem is made, through the Smath Studio routine, observing the influence of geometric parameters and loads on the behavior of the structure.
Influência da tensão, velocidade de alimentação e DBCP na resistência à corrosão de revestimentos à base da liga inconel 625 depositada por MIG
(2019-07-09) Lima, Igor Jaloto de; Santos, Aureliano Xavier dos; http://lattes.cnpq.br/0810494477757052
Annually, high investments are made in the maintenance of pipelines used in the oil industry around the globe. Thus, solutions are sought that combine low cost, reproducibility and properties that are consistent, mainly against corrosion. One of these is the use of materials that have high mechanical and anticorrosive properties in the form of coatings, which could be deposited by welding. The objective of this study was to evaluate the effects of different welding parameters on the corrosion resistance of coatings based on the Inconel 625 alloy, deposited by MIG process in API 5L X70 steel. The parameters were optimized using the factorial experimental design and the results analyzed by the Response Surface Methodology (RSM). Three deposits with ½ overlap were performed by MIG welding process, followed by a cross section cut in the samples for analysis of the dilution, iron content and corrosion resistance by linear potentiodynamic polarization (PPL) through corrosion potential (Ecorr), corrosion current (Icorr) and polarization resistance (Rp). The coatings obtained presented values of the dilution ranging from 5.8% to 15.01%. The coating that presented lower dilution value, also was the one with lower Icorr and Fe, besides higher Rp and Ecorr, thus, greater corrosion resistance.
Estudo dos efeitos dos parâmetros de soldagem MIG em revestimentos a base de níquel depositados em aço API 5L X70
(2019-07-09) Santos, Gabriela Valdeci dos; Santos, Aureliano Xavier dos; http://lattes.cnpq.br/0810494477757052
The application of nickel alloy coatings is commonly performed in the oil and gas industry to increase the life of equipment in aggressive environments, given that this procedure improves corrosion resistance without a significant increase in production cost when compared to mas-sive equipment manufactured with other alloys. The present work evaluates the best process conditions in the deposition of coatings to nickel alloy bases applied by the MIG welding pro-cess in API 5L X70 steels. As base metal plates of the API 5L X70 steel were used as the ad-dition metal, the Ni-based alloy Inconel 625 as the solid ring. As an optimization tool, a com-plete experimental design 2³ was used, associated with the technique of surface response me-thodology (MSR). Measurements of the geometric characteristics (width, reinforcement, convexity index, penetration and dilution) were made, besides raising the microhardness profile of the deposited coatings that used higher and lower welding e-nergy. The most satisfactory results were coatings having 5.8% dilution, 6.19 mm reinforce-ment and 22 mm wide. The microhardness values were influenced directly by the increase of the welding energy used.