Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-06-14T20:19:26Z No. of bitstreams: 1 EriemAllyneMedeirosAzevedo_DISSERT.pdf: 6333576 bytes, checksum: 4fb198cb10ff3117dbd15b989910b143 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-06-15T23:30:13Z (GMT) No. of bitstreams: 1 EriemAllyneMedeirosAzevedo_DISSERT.pdf: 6333576 bytes, checksum: 4fb198cb10ff3117dbd15b989910b143 (MD5) / Made available in DSpace on 2016-06-15T23:30:13Z (GMT). No. of bitstreams: 1 EriemAllyneMedeirosAzevedo_DISSERT.pdf: 6333576 bytes, checksum: 4fb198cb10ff3117dbd15b989910b143 (MD5) Previous issue date: 2015-12-17 / Embora que eficiente do ponto de vista t?cnico, as camadas de argamassa que constituem o revestimento tradicional de alvenaria (chapisco, embo?o e reboco) apresentam-se em contradi??o com as novas tecnologias construtivas e m?todos mais eficientes de consumo e racionaliza??o da obra. Do ponto de vista ambiental, o aproveitamento de res?duos em novos comp?sitos para a constru??o civil tem sido uma vertente de estudos em crescimento na comunidade cient?fica, podendo vir a ser uma solu??o econ?mica, em alguns casos. Assim sendo, essa pesquisa prop?e o desenvolvimento de uma argamassa para Revestimento Decorativo Monocamada (RDM), para aplica??o em fachadas, produzida em canteiro, incorporando res?duo de vidro temperado (RVT) na matriz ciment?cia, como substituto parcial do agregado. Para tanto, adotou-se a rela??o aglomerante/agregado de 1:6 (em volume), ?ndice de consist?ncia de 250mm ? 20, teores de substitui??o da areia por res?duo de vidro em 20%, 50% e 80%, e rela??o ?gua/cimento vari?vel em diversos tra?os. Foram utilizados dois aditivos, um polim?rico, ? base de estireno butadieno, e outro qu?mico, al?m da adi??o mineral de s?lica ativa e de pigmento inorg?nico nas cores vermelho, amarelo e azul. Foram realizados ensaios mec?nicos para a massa no estado fresco e endurecido, assim como para o revestimento aplicado sobre alvenaria, de modo a demonstrar a viabilidade do material. Al?m disso, verificou-se a adequabilidade do RDM ao ambiente constru?do, por meio de ensaios t?rmicos. Os resultados demonstram a exequibilidade do RDM proposto com valores expressivamente superiores, quando comparado ?s normatiza??es. Assim sendo, o estudo apresenta-se a comunidade cient?fica como um incentivo ao uso das inova??es tecnol?gicas na constru??o, aumentando o leque de alternativas dispon?veis para a produ??o habitacional, com a proposi??o de um material que alcan?a as funcionalidades pretendidas e obt?m ganho ambiental, podendo ser adotado em canteiros de obras, em contrapartida as argamassas industrializadas. / Although efficient from a technical point of view, mortar layers that make up the traditional masonry coating (slurry mortar, plaster and plaster) have to be in contradiction with the new construction technologies and more efficient methods of consumption and work rationalization. From an environmental point of view, the recovery of waste into new composites for the building has been a growing strand of studies in the scientific community, may prove to be a cost-effective solution in some cases. Thus, this research proposes the development of a mortar Decorative Coating Monolayer (RDM), for use in facades, produced on site, incorporating tempered glass waste (RVT) in the cement matrix, as a partial substitute for aggregate. Therefore, we adopted the binder respect / aggregate of 1: 6 (by volume), consistency index 250mm ? 20, sand substitution levels of glass waste 20%, 50% and 80% and relative water / cement varied in many traits. Two additives were used, a polymer, styrene-butadiene-based, and other chemical, besides mineral and silica fume inorganic pigment in colors red, yellow and blue. Mechanical tests were carried out on fresh pasta and hardened, as well as for the applied coating on masonry, so as to demonstrate the feasibility of the material. In addition, it verified the adequacy of the RDM built environment by means of thermal tests. The results demonstrated the feasibility of the proposed RDM with significantly higher values when compared to norms, especially the dash-added replacement content of 20% and addition of pigment in red. Therefore, the study shows the scientific community as an incentive to the use of technological innovations in construction, increasing the range of alternatives available for housing production, with the proposition of a material that achieves the desired functionality and obtain environmental gain, and may be adopted on construction sites as an alternative industrialized mortars.

Submitted by Ricardo Cedraz Duque Moliterno (ricardo.moliterno@uefs.br) on 2018-09-10T20:23:00Z No. of bitstreams: 1 AVALIA??O DA UTILIZA??O DE RES?DUO DE VIDRO DE GARRAFAS NA PRODU??O DE ARGAMASSA.pdf: 2101422 bytes, checksum: 3e30e4c6ad0b0e448d0f28282d5385fa (MD5) / Made available in DSpace on 2018-09-10T20:23:00Z (GMT). No. of bitstreams: 1 AVALIA??O DA UTILIZA??O DE RES?DUO DE VIDRO DE GARRAFAS NA PRODU??O DE ARGAMASSA.pdf: 2101422 bytes, checksum: 3e30e4c6ad0b0e448d0f28282d5385fa (MD5) Previous issue date: 2018-07-16 / The use of waste incorporated in building materials has been pointed out as an alternative for more adequate disposal of solid waste. Among the wastes generated in Brazil, are the glass. Less than half of the glass bottles produced in Brazil are recycled. In the present work the influence of the use of waste glass of brown bottles, crushed, as partial substitute of the natural sand, in the production of mortars was evaluated. The substitution contents evaluated were 10, 20 and 30%, by mass, in addition to the reference mortar (without waste glass). The properties of the mortars in the fresh state were evaluated (workability, specific mass and incorporated air content) and also in the hardened state (flexural tensile strength, compressive strength, water absorption, void index, specific mass and alkali-silica reactivity). The results of the tests indicated that the use of waste glass bottles, replacing the natural aggregate, did not alter the fluidity of the mortars, but decreased the density and increased the content of incorporated air. The incorporation of the waste provided an increase in the tensile strengths in flexion and compression, in relation to the reference mortar. With respect to the possible alkali-silica reactivity, it was verified that the mortars with the waste glass bottle did not exceed the expansion limit established in accordance with NBR 15577-4 (ABNT, 2009). Based on the results it was concluded that it is possible to use up to 30% of waste glass of brown bottles, replacing the natural sand. / A utiliza??o de res?duos incorporados ? materiais de constru??o vem sendo apontada como uma alternativa para destina??o mais adequada dos res?duos s?lidos. Dentre os res?duos gerados no Brasil, est?o os de vidro. Menos da metade das embalagens de vidro produzidas no Brasil s?o recicladas. No presente trabalho foi avaliado a influ?ncia da utiliza??o de res?duo de vidro de garrafas de cor marrom, triturado, como substituto parcial do agregado mi?do natural, na produ??o de argamassas. Os teores de substitui??o avaliados foram de 10, 20 e 30%, em massa, al?m da argamassa de refer?ncia (sem res?duo). Foram analisadas propriedades das argamassas no estado fresco (trabalhabilidade, massa espec?fica e teor de ar incorporado) e no estado endurecido (resist?ncia ? tra??o na flex?o, resist?ncia ? compress?o, absor??o de ?gua, ?ndice de vazios, massa espec?fica e reatividade ?lcali-s?lica). Os resultados dos ensaios indicaram que o uso de res?duo de vidro de garrafa, em substitui??o ao agregado natural, n?o alterou a fluidez das argamassas, mas diminuiu a densidade e aumentou o teor de ar incorporado. A incorpora??o do res?duo proporcionou aumento nas resist?ncias ? tra??o na flex?o e ? compress?o, comparado ? argamassa de refer?ncia. Com rela??o ? poss?vel reatividade ?lcali-s?lica, verificou-se que as argamassas com o res?duo de vidro de garrafa n?o excederam o limite de expans?o estabelecido conforme a NBR 15577-4 (ABNT, 2009). Com base nos resultados concluiu-se que ? poss?vel utilizar at? 30% de res?duo de garrafa de vidro de cor marrom, em substitui??o ao agregado natural.