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3. Petróleo e outros combustíveis - Volume 1

Author

Andrade, Davilson Eduardo, primary, Lima, Lucas Mota de, additional, Santos, Isabelly Christinne A. B. A. dos, additional, Almeida, Mário Augusto de Lopes de, additional, Santos, Rosanne Graziele Vieira de Melo, additional, Coutinho, Yane, additional, Ferreira, Fernanda Cavalcanti, additional, Berenguer, Romildo Alves, additional, Chagas, Rodrigo Mendes Patrício, additional, Mendonça, Ana Maria Gonçalves Duarte, additional, Chagas Filho, Milton Bezerra das, additional, Cunha, Jardel Dantas da, additional, Silva, Fernando Nunes da, additional, Barbosa, Andréa Francisca Fernandes, additional, Santos, Vitória Camila Paixão dos, additional, Santandrea, Fabrícia Medeiros, additional, Silva, Marcos Alexandre Lopes, additional, Verçosa, Ilean José Ferreira Lima, additional, Oliveira, Lycia Carolinne Santos de, additional, Silva, Jaceguai Soares da, additional, Padua Neto, José Antonio de, additional, Sales, Victor Henrique Rocha, additional, Vianna, Carolina Rocha Luiz, additional, Silva, Sebastião Henrique Camilo da, additional, Araújo, Márcio Roberto de Andrade, additional, Silva, Claudiana Ferreira da, additional, Araújo, Wellington dos Santos de, additional, Oliveira, Ana Carolina Santos de, additional, Lima, Edilson Ponciano de, additional, Alves, Sandro Luís da Costa, additional, Alves, Luciana Rocha, additional, Tofaneli, Luzia Aparecida, additional, Oliveira, Turan Dias, additional, Neyra, Jair Rodrigues, additional, Costa, Rafael Santos da, additional, Silva, André Keullen da Cunha, additional, Moura, Thiago Rafael da Silva, additional, Chagas, Maria Liduína das, additional, Bahia, Pedro Victor Bomfim, additional, Bitencourt, Thaís da Silva, additional, Vidal, Rosangela Regia Lima, additional, Bandeira, Rafaely Angelica Fonseca, additional, Araújo, Antonio de Souza, additional, Sousa Júnior, Almir Mariano de, additional, Coriolano, Ana Catarina Fernandes, additional, Marques, Regina Célia Pereira, additional, Fernandes, Everton Notreve Rebouças Queiroz, additional, Filgueira Junior, Francisco Odair, additional, Farias, Larissa Freitas, additional, Nunes, Laíse Ramonny Oliveira, additional, Araújo Filho, Márcio Roberto de Andrade, additional, Queiroz, Lauanda Albuquerque, additional, Menezes, Yasmin Geissiana Marinho de, additional, Silva, Marcos Mesquita da, additional, Maia, Divanira Ferreira, additional, Monteiro, Mateus Fernandes, additional, Moura Neto, Mario Hermes de, additional, Bezerra, Diêgo Vinícius Fernandes, additional, Nascimento, Paula Fabiane Pinheiro do, additional, Barros Neto, Eduardo Lins de, additional, Chiavone Filho, Osvaldo, additional, Silva, Debora Abreu da, additional, Piedade, Zoraida Roxana Tejada da, additional, Piedade, Anderson Almeida da, additional, Costa, Hirdan Katarina de Medeiros, additional, Simões, André Felipe, additional, Santos, Edmilson Moutinho dos, additional, Almeida, Paulo Santos de, additional, Fonseca Filho, Homero, additional, Viana, Ednílson, additional, Cavalcanti, Maria Gabriela da Silva, additional, Cavalcanti, Luiz Antônio Pimentel, additional, Moraes, Scarllet O’hara de Oliveira, additional, Rodrigues, Wellington da Silva, additional, Lopes, Kelson Carvalho, additional, Resende, Fábio de Melo, additional, Leal, Cristiane, additional, Carvalho, Thaís Mendonça de, additional, Siqueira, Rogério Navarro Correia de, additional, Teixeira, Ingrid Rocha, additional, Almeida, Daniel Freire, additional, Almeida, Selmo Queiroz, additional, Santos, Iran Talis Viana, additional, Campos, Leila Maria Aguilera, additional, Reinaldo, Rayanne Samara de Sousa, additional, Alves, Leonardo Alcântara, additional, Sousa, Maria Rosimar de, additional, Melo, Klismeryane Costa de, additional, Dantas, Joelda, additional, Costa, Ana Cristina Figueiredo de Melo, additional, Barbosa, Daniela da Costa, additional, Silva, Adriano Lima da, additional, Farias, Ana Flávia Felix, additional, Meneghetti, Simoni Margareti Plentz, additional, Leal, Elvia, additional, Araújo, Nathalia Oliveira, additional, Pereira, Kleberson Ricardo de Oliveira, additional, Fernandes, Pollyana Caetano Ribeiro, additional, Lopes, Adriana Carla de Oliveira, additional, Galdino, Fabiane Caxico de Abreu, additional, Magalhães, Kaique Moreira Matos, additional, Santos, Geraldo José Belmonte dos, additional, Ribeiro Junior, Armando Sá, additional, Melo, Erica Werneck Duarte, additional, Vilaça, Isabela Pessanha, additional, and Rangel, João José de Assis, additional

Published
2019
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4. Aplicación de curvas de degradación en la predicción de vida útil de revestimientos de mortero externo con acabado de pintura en la ciudad de Recife, Brasil

Author

Oliveira Júnior, Antonio Rinaldo, Sá, Ayrton Wagner dos Santos Gomes de, Coutinho , Yane, Silva, Wildson Wellington, and Carneiro, Arnaldo Manoel Pereira

Subjects
Degradation curves, Curvas de degradación, Esperanza de vida, Curvas de degradação, Revestimento de argamassa com acabamento em pintura, Previsão de vida útil, Revestimiento de mortero con acabado de pintura, Mortar coating finished with painting, Service life prediction
Abstract

The present study aimed to develop a model to predict the service life of external wall coverings in mortar with paint finish, based on the state of degradation of 28 buildings in the city of Recife, Brazil. The area of the coating affected by different pathological manifestations was measured, and a numerical index to describe the severity of the degradation of the coating (Sw) was calculated. As a result of this index, degradation curves were constructed based on intrinsic factors (cardinal orientation, texture, color and presence of constructive details) and extrinsic factors (distance from the sea and proximity to polluting sources). In the analyzed samples, there was predominance of stains, and in less extent, cracks and detachments. The results showed that the cardinal orientation is the most influent characteristic in the durability of this coating system. The results obtained clearly demonstrate the applicability of the model in the study of the degradation of coatings, contributing to the development of maintenance actions focused on the most important factors in the degradation of coatings. El presente estudio tuvo como objetivo desarrollar un modelo para predecir la vida útil de revestimientos de paredes exteriores en mortero con acabado de pintura, basado en el estado de degradación de 28 edificios en la ciudad de Recife, Brasil. Se midió el área del recubrimiento afectada por diferentes manifestaciones patológicas y se calculó un índice numérico para describir la severidad de la degradación del recubrimiento (Sw). Como resultado de este índice, se construyeron curvas de degradación en base a factores intrínsecos (orientación cardinal, textura, color y presencia de detalles constructivos) y factores extrínsecos (distancia al mar y proximidad a fuentes contaminantes). En las muestras analizadas hubo predominio de manchas, y en menor cantidad de grietas y desprendimientos. De los factores estudiados, la orientación cardinal de las fachadas fue la que más influyó en el proceso de degradación. Los resultados obtenidos demuestran claramente la aplicabilidad del modelo en el estudio de la degradación de recubrimientos, contribuyendo al desarrollo de acciones de mantenimiento enfocadas en los factores más importantes en la degradación de recubrimientos. O presente estudo teve como objetivo desenvolver um modelo para prever a vida útil de revestimentos de paredes externas em argamassa com acabamento em pintura, com base no estado de degradação de 28 edificações na cidade de Recife, Brasil. A área de revestimento afetada por diferentes manifestações patológicas foi medida e um índice numérico para descrever a gravidade da degradação do revestimento (Sw) foi calculado. A partir deste índice, foram construídas curvas de degradação em função de fatores intrínsecos (orientação cardeal, textura, cor e presença de detalhes construtivos) e extrínsecos (distância do mar e proximidade de fontes poluentes). Nas amostras analisadas houve o predomínio de manchas, e em menor número, fissuras e descolamentos. Dos fatores estudados, a orientação cardeal das fachadas foi o que apresentou maior influência no processo de degradação. Os resultados obtidos demonstram claramente a aplicabilidade do modelo no estudo da degradação de revestimentos, contribuindo para o desenvolvimento de ações de manutenção focadas nos fatores mais importantes na degradação de revestimentos.

Published
2021

5. Effect of the incorporation of sugarcane bagasse fibers in asphalt mixture dosed by the Superpave method

Author

Mendonça, Ana Maria Gonçalves Duarte, primary, Melo Neto, Osires de Medeiros, additional, Rodrigues, John Kennedy Guedes, additional, Lima, Robson Kel Batista de, additional, Silva, Ingridy Minervina, additional, Sousa Neto, Valter Ferreira de, additional, Carvalho, Flávia do Socorro de Sousa, additional, Coutinho, Yane, additional, Da Silva, Amanda Jessica Rodrigues, additional, and Guerra, Thamires Dantas, additional

Published
2021
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8. Petrographic Evaluation of Aggregates Affected by Tectonic Deformation in Development of Alkali-Silica Reaction.

Author

Prado, Adelson, Coutinho, Yane, Ferreira, Fernanda, Mariano, Gorki, and Carneiro, Arnaldo

Subjects
SHEAR zones, FAULT zones, DETERIORATION of concrete, MORTAR, GEOLOGICAL mapping, QUARTZ, GEOLOGICAL maps
Abstract

The deterioration of concrete due to alkali-silica reaction (ASR) is a worldwide problem. Rocks close to shear and/or fault zones generally favor the occurrence of this reaction when used as aggregates in concrete. This study evaluated six coarse aggregates from quarries at different distances from shear and fault zones in the eastern part of the state of Pernambuco, Brazil, to verify the influence of tectonic deformation in the aggregate reactivity. Petrographic analyses and accelerated mortar bar tests were performed. The presence of microcrystalline quartz from dynamic recrystallization in samples collected closer to transcurrent shear zones provided higher reactivity. Therefore, a strong correlation between expansion/microcrystalline quartz content and distance from transcurrent shear zones was obtained. Thus, the geological mapping and characterization may provide an initial and fast indication of the reactive potential of aggregates, being a guidance for the choice of the extraction location or an initial indication of the need to use mitigation measures. [ABSTRACT FROM AUTHOR]

Published
2022
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