Made available in DSpace on 2014-12-17T14:52:47Z (GMT). No. of bitstreams: 1 DayvissonCF.pdf: 1694774 bytes, checksum: a98701f41f50fc29136c498ee2de44b8 (MD5) Previous issue date: 2009-12-21 / Universidade Federal do Rio Grande do Norte / The process of urbanization in recent decades has generated considerable seriousness of problems relating to the use and occupation physical environment of cities. The concentration of population, economic activities and technological standards have reinforced an existing urban environment highly degraded as a consequence of the development style that leads to the predatory use of natural resources. In this context, cities as centers of production and consumption, have the most serious problems of environmental degradation. This study investigated the impacts of the municipal building projects to large-scale vertical in the town of Vila de Ponta Negra, Natal-RN, given the proximity to the Environmental Protection Area (ZPA-6) and considering its environmental importance , scenic, landscape and tourism for the city of Natal-RN. The fragility of the licensing process and the failure of the assumptions in the analysis, objective and subjective, for the granting of environmental permits for the building construction projects, specifically those set out in the surroundings of the Environmental Protection Area (ZPA-6) and fundamental importance of landscape and tourism for the city of Natal, has aroused the concern of local people in and of itself the Government, faced with the probable impacts that will affect greatly the Vila de Ponta Negra. The methodology used to achieve the intended objectives will be the literature review, questionnaire to the surrounding population and the Government, as well as findings on the spot, through the photographic record. The beneficiaries of the license, if the entrepreneurs, have been affected because of the granting of licensing act of investing large amount of capital in the works. Additionally, with distrust of the population, since they are to discredit the public system of environmental management have guessed by the probability of imbalance to the environment and structural damage to the Vila de Ponta Negra, where such failure to support energy, lack of regular supply of water , lack of sanitation and access roads sufficient for the flow of motor vehicles in these areas, among other factors. Thus, this work will contribute to the diagnosis and solutions to the problem in question, so that the Government will effectively fulfill its social management of ecologically balanced environment of continuing urban development in Natal, Brazil / O processo de urbaniza??o das ?ltimas d?cadas tem gerado problemas de consider?vel gravidade, relativos ao uso e ocupa??o f?sico-ambiental das cidades. A concentra??o da popula??o, das atividades econ?micas e os padr?es tecnol?gicos vigentes t?m refor?ado um ambiente urbano altamente degradado, conseq??ncia do estilo de desenvolvimento que leva ao uso predat?rio dos recursos naturais. Nesse contexto, as cidades, enquanto centros de produ??o e consumo, apresentam os problemas mais s?rios de degrada??o ambiental. O presente trabalho objetivou estudar os impactos urbanos com a edifica??o de empreendimentos verticais de grande vulto na localidade de Vila de Ponta Negra, Natal-RN, haja vista a proximidade com a Zona de Prote??o Ambiental (ZPA-6) e considerando a sua import?ncia ambiental, c?nico-paisag?stica e tur?stica para a cidade de Natal-RN. A fragilidade do processo de licenciamento e a inobserv?ncia na an?lise dos pressupostos, objetivos e subjetivos, para a concess?o de licen?as ambientais destinadas ? edifica??o de empreendimentos da constru??o civil, especificamente ?queles estabelecidos nos entornos de Zona de Prote??o Ambiental (ZPA-6) e de fundamental import?ncia paisag?stica e tur?stica para o Munic?pio de Natal-RN, v?m despertando a preocupa??o da popula??o circunvizinha e do pr?prio Poder P?blico, diante dos prov?veis impactos que afetar?o sobremaneira a Vila de Ponta Negra. A metodologia utilizada para atingir os objetivos pretendidos ser? a revis?o bibliogr?fica, aplica??o de question?rio a popula??o das imedia??es e ao Poder P?blico, bem como constata??es in loco, atrav?s de registro fotogr?fico. Os benefici?rios da licen?a, no caso os empreendedores, v?m sendo afetados, pois ap?s a concess?o do ato de licenciamento investem elevada soma de capital nas obras. Ademais, suscita desconfian?a da popula??o, posto que passam a desacreditar no sistema p?blico de gest?o ambiental por vislumbrarem a probabilidade de desequil?brio ao meio ambiente e danos estruturais ? Vila de Ponta Negra, tais quais a incapacidade de suporte energ?tico, falta de abastecimento regular de ?gua, aus?ncia de esgotamento sanit?rio e de vias de acesso suficientes para o fluxo de ve?culos automotores nestas ?reas, dentre outros fatores. Assim, o presente trabalho contribuir? com o diagn?stico e solu??es ? problem?tica em quest?o, de modo que o Poder P?blico venha a cumprir efetivamente a sua fun??o social de gerenciamento do meio ambiente ecologicamente equilibrado face ao constante desenvolvimento urban?stico de Natal-RN

Made available in DSpace on 2014-12-17T15:01:29Z (GMT). No. of bitstreams: 1 MayaraFG_DISSERT.pdf: 1956049 bytes, checksum: 6e1a5358b16d10d94d4b543ba5a32296 (MD5) Previous issue date: 2012-06-15 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / During the process of the salt production, the first the salt crystals formed are disposed of as industrial waste. This waste is formed basically by gypsum, composed of calcium sulfate dihydrate (CaSO4.2H2O), known as carago cru or malacacheta . After be submitted the process of calcination to produce gypsum (CaSO4.0,5H2O), can be made possible its application in cement industry. This work aims to optimize the time and temperature for the process of calcination of the gypsum (carago) for get beta plaster according to the specifications of the norms of civil construction. The experiments involved the chemical and mineralogical characterization of the gypsum (carago) from the crystallizers, and of the plaster that is produced in the salt industry located in Mossor?, through the following techniques: x-ray diffraction (XRD), x-ray fluorescence (FRX), thermogravimetric analysis (TG/DTG) and scanning electron microscopy (SEM) with EDS. For optimization of time and temperature of the process of calcination was used the planning three factorial with levels with response surfaces of compressive mechanical tests and setting time, according norms NBR-13207: Plasters for civil construction and x-ray diffraction of plasters (carago) beta obtained in calcination. The STATISTICA software 7.0 was used for the calculations to relate the experimental data for a statistical model. The process for optimization of calcination of gypsum (carago) occurred in the temperature range from 120? C to 160? C and the time in the range of 90 to 210 minutes in the oven at atmospheric pressure, it was found that with the increase of values of temperature of 160? C and time calcination of 210 minutes to get the results of tests of resistance to compression with values above 10 MPa which conform to the standard required (> 8.40) and that the X-ray diffractograms the predominance of the phase of hemidrato beta, getting a beta plaster of good quality and which is in accordance with the norms in force, giving a by-product of the salt industry employability in civil construction / Durante o processo de produ??o do sal, os primeiros cristais formados s?o descartados como res?duo industrial. Esse res?duo ? constitu?do basicamente por gipsita, composto de sulfato de c?lcio di-hidratado (CaSO4.2H2O), conhecido como carago cru ou malacacheta . Ap?s ser submetida a processo de calcina??o para obten??o do gesso (CaSO4.0,5H2O) , pode ser viabilizada a sua aplica??o na ind?stria cimenteira. Este trabalho tem como objetivo otimizar o tempo e a temperatura para o processo de calcina??o da gipsita (carago) para obten??o do gesso beta de acordo com as especifica??es da norma da constru??o civil. Os experimentos envolveram a caracteriza??o qu?mica e mineral?gica da gipsita (carago) oriunda dos cristalizadores, e do gesso que ? produzido na ind?stria salineira localizada em Mossor?, atrav?s das seguintes t?cnicas: difra??o de raios-X (DRX), fluoresc?ncia de raios X (FRX), an?lise Termogravim?trica (TG/DTG) e a microscopia eletr?nica de varredura (MEV) com EDS. Para otimiza??o do tempo e temperatura do processo de calcina??o foi utilizado o planejamento fatorial de tr?s n?veis com superf?cies de respostas dos ensaios mec?nicos de resist?ncia ? compress?o e tempo de pega conforme a norma NBR-13207: Gessos para Constru??o civil e a difra??o de raios-X dos gessos (carago) beta obtidos na calcina??o. O software STATISTICA 7.0 foi usado para os c?lculos para relacionar os dados experimentais para um modelo estat?stico. O processo para otimiza??o da calcina??o da gipsita (carago) ocorreram na faixa de temperatura de 120?C a 160?C e o tempo na faixa de 90 a 210 minutos no forno a press?o atmosf?rica, verificou-se que com o aumento dos valores da temperatura de 160?C e no tempo de calcina??o para 210 minutos obtemos resultados dos ensaios de resist?ncia a compress?o com valores acima de 10 MPa que est?o de acordo com o requerido pela norma (>8,40) e que nos difratogramas de raios- X temos a predomin?ncia da fase do hemidrato beta, obtendo um gesso beta de boa qualidade e que est? de acordo com as normas vigentes, dando a um subproduto da ind?stria salineira a empregabilidade na constru??o civil

Made available in DSpace on 2015-12-03T18:35:28Z (GMT). No. of bitstreams: 1 Rodrigo_Marcelli.pdf: 1102111 bytes, checksum: 47b82f8805814148944b78cd504fb0f2 (MD5) Previous issue date: 2013-08-30 / In the last few years, Brazil has undergone a profound change in the way companies are pro-vided with access to capital markets; this has required greater transparency in the preparation of financial statements and disclosure of accounts. Recent scandals in the history of the finan-cial markets that have involved the practice of accounting choices for the purpose of managing results, require users of this information to be increasingly well prepared. This study seeks to analyze the existence of evidence of management practices in the results of financial state-ments of Brazilian construction companies listed in the BM & FBovespa in the period 2000-2012. The approach adopted for the detection of results management was based on the specif-ic accruals used for panel data methods with the development and employment of a particular model that follows the pattern of the Generalized Linear Mixed Model (GLMM). The re-search revealed that the financial statements published by the Brazilian building constructors for the years 2003-2006 and 2009-2010, show signs of results management with the use of the liquid variable for the amount of real estate sold. The results also suggest that large-sized Bra-zilian building constructors tend to manage their results more than small-sized firms. On the basis of the findings of this research, it is clear that information is not being disclosed that allows an assessment of the quality and performance of companies. There is thus a need for a reform of financial disclosure policies with regard to factors linked to revenue recognition and measurement and in particular, the total budgeted costs of work performed (POC) and the scheduled completion percentage / Nos ??ltimos anos o Brasil passou por uma evolu????o no acesso de companhias ao mercado de capitais, exigindo maior transpar??ncia na elabora????o e divulga????o de informa????es cont??beis. Esc??ndalos recentes na hist??ria do mercado financeiro, envolvendo a pr??tica de escolhas cont??beis com objetivo de gerenciar resultados, exige que os usu??rios destas informa????es estejam cada vez mais preparados. Este estudo buscou analisar a exist??ncia de evid??ncias de pr??ticas de gerenciamento de resultados nas demonstra????es financeiras de construtoras brasileiras listadas na BM&FBovespa no per??odo de 2000 ?? 2012. A abordagem adotada para a identifica????o do gerenciamento de resultados foi de acumula????es espec??ficas (specifc accruals), utilizando a t??cnica de dados em painel com o desenvolvimento e aplica????o de modelo especifico seguindo a abordagem dos Modelos Lineares Generalizados Mistos. A pesquisa revelou que as demonstra????es financeiras publicadas pelas construtoras brasileiras nos anos de 2003 ?? 2006, 2009 e 2010 apresentam ind??cios de gerenciamento de resultado com a utiliza????o da vari??vel Receita l??quida de im??veis vendidos. Os resultados tamb??m apontam que as construtoras brasileiras de maior porte tendem a gerenciar seus resultados mais que as construtoras de menor porte. Com as descobertas desta pesquisa percebe-se que informa????es que permitam avaliar a qualidade e o desempenho das companhias n??o s??o divulgadas, necessitando de uma reforma nas pol??ticas de divulga????o das demonstra????es financeiras, principalmente sobre fatores atrelados a mensura????o e reconhecimento de receitas, em especifico, o custo or??ado total de obra e o percentual de obra conclu??da - POC

Submitted by SBI Biblioteca Digital (sbi.bibliotecadigital@puc-campinas.edu.br) on 2017-08-07T13:10:24Z No. of bitstreams: 1 R?GIA MARIA PETITTO.pdf: 3577833 bytes, checksum: 125f036f5ae5942ebbd9906d675670d3 (MD5) / Made available in DSpace on 2017-08-07T13:10:24Z (GMT). No. of bitstreams: 1 R?GIA MARIA PETITTO.pdf: 3577833 bytes, checksum: 125f036f5ae5942ebbd9906d675670d3 (MD5) Previous issue date: 2017-06-21 / The objective of this work was to characterize the recycled aggregates generated in the metropolitan region of Campinas and to test its application in the production of mortars for general use. From a qualitative approach, with an exploratory objective, the surveys of the current legislation and legal requirements imposed to solid waste management and the panorama of this management in the metropolitan region of Campinas were carried out. The six recycling plants for the disposal of construction waste (RCC) generated in the implanted municipalities were identified and, based on the data collected, a map with the geographic location of these plants was elaborated. After the sample collection, with a quantitative approach of applied nature and exploratory objective, analyzes of the physical characteristics were made (grain size composition, 75 ?m sieve material, water absorption, clay cladding content and friable materials, Specific mass and organic impurity) and chemical (soluble salts and organic matter content by fire loss) of these materials. All the analyzed aggregates presented satisfactory results in the granulometric composition and water absorption tests. Regarding the content of fine material (less than 75 ?m), clay content and friable materials and organic impurities, few samples could be accepted for use recommended by the Brazilian Association of Technical Standards (ABNT). The analysis of the soluble salts content would also make it impossible to accept the aggregate of some suppliers. With the replacement of natural aggregate by the recycled aggregates, mortars with a 1: 3 dash (cement: aggregate) were prepared, and 20 and 40% of the natural aggregate were replaced. The characteristics of the mortars in the fresh state (water retention, incorporated air content, mass density) and hardened (water absorption by capillarity, capillary coefficient, compressive strength, flexural tensile strength and apparent specific mass in the Hardened state). From the results obtained, the analytical Hierarchy Process (AHP) methodology showed the content of incorporation of the recycled aggregate in the production of general purpose mortars composed of cement and sand. For the application of this method, weights were assigned to punctuated criteria related to the physical and mechanical performance of mortars and environmental criteria related to the exhaustion of natural resources and transport distance. The best result was found in mortar with a 20% substitute content of mixed recycled aggregate by municipal unit from Campinas, but it is not possible to observe a tendency to obtain better results in mortars with lower substitution content, nor exclusively by mortars with mixed recycled aggregates. / O presente trabalho teve por objetivo caracterizar os agregados reciclados gerados na regi?o metropolitana de Campinas e testar sua aplica??o na produ??o de argamassas para uso geral. A partir de uma abordagem qualitativa, com objetivo explorat?rio, foram realizados os levantamentos da legisla??o vigente e exig?ncias legais impostas ? gest?o dos res?duos s?lidos e do panorama desta gest?o na regi?o metropolitana de Campinas. As seis usinas recicladoras para destina??o dos res?duos de constru??o civil (RCC) gerados nos munic?pios implantadas foram identificadas e, a partir dos dados coletados, elaborou-se um mapa com a localiza??o geogr?fica destas usinas. Ap?s a coleta de amostras, com abordagem quantitativa de natureza aplicada e objetivo explorat?rio, foram realizadas an?lises das caracter?sticas f?sicas (composi??o granulom?trica, teor de material passante na peneira de 75 ?m, absor??o de ?gua, teor de torr?es de argila e materiais fri?veis, massa espec?fica e impureza org?nica) e qu?micas (sais sol?veis e teor de mat?ria org?nica por perda ao fogo) destes materiais. Todos os agregados analisados apresentaram resultados satisfat?rios nos ensaios de composi??o granulom?trica e absor??o de ?gua. J? quanto ao teor de material fino (menor que 75 ?m), teor de torr?es de argila e materiais fri?veis e impurezas org?nicas, foram poucas as amostras que poderiam ser aceitas para o emprego recomendado pela Associa??o Brasileira de Normas T?cnicas (ABNT). A an?lise do teor de sais sol?veis tamb?m inviabilizaria a aceita??o do agregado de alguns fornecedores. Com a substitui??o de agregado natural pelos agregados reciclados foram preparadas argamassas com tra?o de 1:3 (cimento:agregado), e substitui??o de 20 e 40% do agregado natural. Foram determinadas as caracter?sticas das argamassas no estado fresco (reten??o de ?gua, teor de ar incorporado, densidade de massa) e endurecido (absor??o de ?gua por capilaridade, coeficiente de capilaridade, resist?ncia ? compress?o, resist?ncia ? tra??o na flex?o e massa especifica aparente no estado endurecido). A partir dos resultados obtidos verificou-se, por aplica??o do m?todo de avalia??o multicrit?rios, com a metodologia Analytic Hierarchy Process (AHP), o teor de incorpora??o do agregado reciclado na produ??o de argamassas de uso geral compostas por cimento e areia. Para a aplica??o deste m?todo foram atribu?dos pesos a crit?rios pontuados ligados ao desempenho f?sico e mec?nico das argamassas e crit?rios ambientais ligados ao esgotamento dos recursos naturais e dist?ncia de transporte. O melhor resultado foi encontrado na argamassa com teor de substitui??o de 20% de agregado reciclado misto da unidade municipal de Campinas, mas n?o ? poss?vel observar tend?ncia de obter melhores resultados em argamassas com menor teor de substitui??o, nem t?o pouco exclusivamente por argamassas com agregados reciclados mistos.

Made available in DSpace on 2014-12-17T14:52:46Z (GMT). No. of bitstreams: 1 KarinaASLO.pdf: 796731 bytes, checksum: 099dea11106648c012724e28f6653735 (MD5) Previous issue date: 2009-05-19 / In Brazil the theme quality in public construction has been widely discussed in the early 1990s, with the creation of the Brazilian Program of Quality and Productivity for the Habitat (PBQP-H) which is strongly influenced by the wave of studies on issues of quality in the world, such as the ISO 9000. Over the years, other approaches have emerged and been consolidated, evolving from market and customer?s needs. An example is the Six Sigma methodology. This study aims to examine the Six Sigma, ISO 9000 and PBQP-H methodologies, noting the common elements, differences, gaps and how the methods are complementary, so that with the ongoing work, proposed initiatives can be developed to improve the quality that enables its application in public construction. Still aiming to optimize the deployment of the proposed initiatives, it was performed an analysis of ISO 9001 and PBPQ-H certifications in Brazil and in the state of Rio Grande do Norte, with respect to the construction industry and a case study to identify the factors that influence the adoption of initiatives to improve quality, and check if the selected construction company is prepared to implement the proposed initiatives. This research is characterized as exploratory and applied, with literature review and a case study. The data collection instrument was a questionnaire and the statistical analysis used a multidimensional scaling method. The conclusion is that the methodologies are compatible and complementary, and their integration could potentialize the goals set. It was identified that the state of Rio Grande do Norte has a few number of certifications in construction. Nine initiatives are proposed for implementation at construction companies. In the case study it was found that the studied company would be able to implement the suggestions proposed and the requirement for certification by clients and funding institutions influence the adoption of quality improvement initiatives. This result confirms the literature which states that top management support is crucial for the successful implementation of quality methodologies / No Brasil o tema qualidade em obras p?blicas foi bastante discutido no in?cio da d?cada de 1990, com o advento do Programa Brasileiro de Qualidade e Produtividade do Habitat PBQP-H, sendo este fortemente influenciado pela onda de estudos das quest?es de qualidade em todo mundo, como por exemplo, a ISO 9000. Com o passar dos anos, outras metodologias surgiram e se consolidaram, evoluindo com as necessidades do mercado e dos clientes. Um exemplo ? a metodologia Seis Sigma. Este trabalho tem por objetivo analisar as metodologias Seis Sigma, ISO 9000 e PBQP-H, observando os elementos comuns, as diferen?as, as lacunas e como as metodologias se complementam, de modo que com decorrer do trabalho possam ser elaboradas propostas de iniciativas de melhoria da qualidade que possibilitem sua aplica??o em construtoras de obras p?blicas. Buscando a otimiza??o da implanta??o das iniciativas propostas, foram realizados uma an?lise do perfil das certifica??es ISO 9001 e PBPQ-H no Brasil e Rio Grande do Norte (RN) com rela??o ? ind?stria da constru??o civil e um estudo de caso para identificar quais os fatores que influenciam na ado??o de iniciativas de melhoria da qualidade, al?m de verificar se a construtora estudada est? preparada para ado??o das propostas deste trabalho. A pesquisa ? caracterizada como explorat?ria e aplicada, em que foram realizados pesquisa bibliogr?fica e um estudo de caso. O instrumento de coleta foi do tipo question?rio e a an?lise estat?stica utilizou um m?todo de escalagem multidimensional. Chegou-se a conclus?o que as metodologias s?o compat?veis e complementares, e que a integra??o destas poder? potencializar os objetivos estipulados. Foi identificado que o RN tem um baixo ?ndice de certifica??o em constru??o civil. Chegou-se a uma proposta de nove iniciativas que podem ser adotadas pelas empresas construtoras. No estudo de caso foi verificado que a empresa estudada estaria apta a implantar as sugest?es propostas, que a exig?ncia de certifica??o pelos clientes e ?rg?os financiadores influencia na ado??o de iniciativas de melhoria da qualidade al?m de confirmar a literatura que diz que o apoio da alta ger?ncia ? fundamental para o sucesso da implanta??o das metodologias de qualidade

Made available in DSpace on 2014-12-17T14:52:50Z (GMT). No. of bitstreams: 1 AdalbertoAA.pdf: 1733034 bytes, checksum: c39f7c59557751fe039012b53650abfc (MD5) Previous issue date: 2006-05-19 / The aim of this present research is to investigate about aplication of the supply chain management in Civil Construction, through perception of brasilian building companies directors. Research purpose includes potential benefits and main dificults analysis in supply chain management, beyond to identify decision criterions for suppliers and sales chain (commission agent and real state agency) choice and reduction, to facilility management in companies. The methodology used in this work considers the application of a questionnaire with scales of the type Likert being constituted of variables that compose the aspects of evaluation and of behaviors, beyond questions to identify the market profile of the respondents. For analysis statistics is used the descriptive, clusters and variance, ANOVA, analysis last two to verify the connections between variables. The results show more perception as for long terms contracts with suppliers for purchase of materials and services being decisive for companies nowadays (40%) than as for exclusive contracts with commission agents (30%). There is a positive appraisal about viability of hipotetic situations showed, but more caution as for disposition to apply them too. Another results aim for biggers dificults in management of chain links formed by commission agents and real state agencies, than chain links formed by anothers suppliers of materials and services. The companies for study were chosen among to those with ISO 9000 certificate until november 2001, considering that these companies have the best management systems, probably / O objetivo desta pesquisa ? investigar a aplica??o da gest?o da cadeia de fornecimento na Constru??o Civil atrav?s da percep??o de dirigentes das empresas construtoras brasileiras. O escopo da pesquisa inclui a an?lise dos benef?cios potenciais e principais dificuldades na gest?o da cadeia de fornecimento, al?m de identificar os principais crit?rios de decis?o na escolha e redu??o de fornecedores e canais de venda (corretores e imobili?rias), fato que facilitaria a gest?o da cadeia como um todo. A metodologia utilizada no trabalho considera a aplica??o de um question?rio com escalas do tipo Likert constitu?do de vari?veis com aspectos avaliativos e atitudinais, al?m de perguntas para identificar o perfil de mercado das respondentes. Foi empregada na an?lise estat?stica a an?lise descritiva, de Agrupamentos (Clusters) e de vari?ncia, ANOVA, as duas ?ltimas para identificar poss?veis rela??es entre as vari?veis pesquisadas. Os resultados mostram a maior percep??o quanto ao estabelecimento de contratos de longo prazo com fornecedores para a compra de materiais e servi?os j? ser decisivo para as empresas (40%), do que os contratos de exclusividade com corretores (30%). Existe tamb?m uma avalia??o positiva da viabilidade dos cen?rios apresentados, mas uma maior cautela quanto ? disposi??o de implant?-los nas empresas. Outros resultados apontam para maiores dificuldades na gest?o de elos da cadeia formados por corretores e imobili?rias que os formados pelos outros fornecedores de materiais e servi?os. Foram escolhidas para a pesquisa as empresas brasileiras com certifica??o ISO 9000 at? novembro de 2001, considerando que estas s?o as mais prov?veis de possuir um sistema de gest?o mais avan?ado

Made available in DSpace on 2014-12-17T14:52:54Z (GMT). No. of bitstreams: 1 AlcidesFSF.pdf: 734255 bytes, checksum: 47cc13ea70d864d6a5ffe61ff57b1128 (MD5) Previous issue date: 2005-11-10 / The present work has the objective of presenting an investigation about the quantification, classification and destination of the waste of construction and demolition (RCD) in the city of Natal - RN, focusing the aspects of the environmental impacts and the strategic importance of the environmental administration in the earnings of productivity of the companies. Of the environmental point of view the research intends to identify and to quantify the monthly and annual production of RCD in the city, as well as to know the places of deposition of those residues. To reach the objectives of the study, an exploratory and descriptive research was accomplished, using a questionnaire with closed subjects and an open one, applied in 25 entrepreneurs of the branch of the building site, being 21 builders and 4 entrepreneurs of collection companies and removal dumps. As form of analysis of the data, the descriptive analysis was used and of crossing. The production engineering considers important the insert of best production practices and administration of the product in the companies, with views to the increase of your competitiveness, productivity earnings and improvement of the environmental aspects with views to the consumer's satisfaction, in that case the buyer of immobile. The principal results of the investigation demonstrate that there was not great variability of answers with relationship to the interviewees opinion in what he refers to the environmental practices. In your majority the building site interviewees entrepreneurs evidenced the absence of the public power, particularly the city hall of Natal, in the control, fiscalization and creation of mechanisms for a correct destination of RCD, as well as for your reuse and recycle. On the other hand also it was evident that the recycle or the reuse of RCD on the part of the companies is a rare practice and a lot of times inexistent, although the entrepreneurs' of the building site section great majority recognizes that would have won of productivity with the correct and intensive use of such measures / O presente trabalho tem o objetivo de apresentar uma investiga??o sobre a quantifica??o, classifica??o e destina??o dos res?duos s?lidos de constru??o e demoli??o (RCD) na cidade do Natal - RN, enfocando os aspectos dos impactos ambientais e a import?ncia estrat?gica da gest?o ambiental no ganho de produtividade das empresas. Do ponto de vista ambiental a pesquisa prop?e identificar e quantificar a produ??o mensal e anual de RCD na cidade, bem como conhecer os locais de disposi??o final desses res?duos. Para atingir os objetivos do estudo, foi realizada uma pesquisa explorat?ria e descritiva, utilizando um question?rio com quest?es fechadas e uma aberta, aplicados em 25 empres?rios do ramo da constru??o civil, sendo 21 construtores e 4 empres?rios de empresas de coleta e remo??o de entulhos. Como forma de an?lise dos dados, foi utilizada a an?lise descritiva e de cruzamento. A engenharia de produ??o considera importante a inser??o de melhores pr?ticas de produ??o e gest?o do produto nas empresas, com vistas ao aumento de sua competitividade, ganho de produtividade e melhoria dos aspectos ambientais com vistas ? satisfa??o do consumidor, nesse caso o comprador de im?veis. Os principais resultados da investiga??o demonstram que n?o houve grande variabilidade de respostas quanto ? opini?o dos entrevistados no que se refere ?s pr?ticas ambientais. Em sua maioria, os empres?rios da constru??o civil entrevistados evidenciaram a aus?ncia do poder p?blico, particularmente a prefeitura de Natal, no controle, fiscaliza??o e cria??o de mecanismos para uma correta destina??o dos RCD, bem como para o seu reaproveitamento e reciclagem. Por outro lado tamb?m ficou evidente que a reciclagem ou o reaproveitamento dos RCD por parte das empresas ? uma pr?tica rara e muitas vezes inexistente, embora a grande maioria dos empres?rios do setor de constru??o civil reconhe?am que teriam ganhos de produtividade com a utiliza??o correta e intensiva de tais medidas