Výsledky vyhledávání - "Aldo Giuntini de Magalhães"

Akademický článek

Chloride ion penetration resistance in concretes produced with recycled fine aggregates and silica fume

Autor: Renata Leal Henriques, Priscylla Botelho Athayde, Aldo Giuntini de Magalhães, Thiago Abdala Magalhães, Fabrício Vieira de Andrade

Publikováno v: Revista IBRACON de Estruturas e Materiais, Vol 17, Iss 2 (2023)

Abstract The use of by-products and recyclable materials in the production of concrete has become an interesting alternative to mitigate environmental impacts, especially those generated by the construction industry, as long as their mechanical and d

Externí odkaz: https://doaj.org/article/44fde33f48fa4dcf9dc48349f033353e

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Akademický článek

Assessment of the effect of changes in consolidation conditions in the advance of the carbonation front in cementitious matrix composites

Autor: Ruan Gustavo Rezende Silva, Aldo Giuntini de Magalhães, Christopher Augusto Campos, Ivair Ramos Silva

Publikováno v: Revista IBRACON de Estruturas e Materiais, Vol 14, Iss 5 (2021)

ABSTRACT: Carbonation is one of the main deleterious effects of reinforced concrete structures, as it creates a favorable condition for the reinforcement depassivation and, thus, facilitates the onset of the corrosive process. The phenomenon is direc

Externí odkaz: https://doaj.org/article/7c0873ccbb3a4049a3782cfa134ec93b

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Elektronická kniha

Eco-efficient Construction and Building Materials : Life Cycle Assessment (LCA), Eco-Labelling and Case Studies

Autor: Fernando Pacheco-Torgal, Luisa F. Cabeza, Joao Labrincha, Aldo Giuntini de Magalhaes

Eco-efficient Construction and Building Materials reviews ways of assessing the environmental impact of construction and building materials. Part one discusses the application of life cycle assessment (LCA) methodology to building materials as well a

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Monitoring the carbonation front progress in a cementitious composite having its pore structure analyzed through μ-CT imaging

Autor: Eduardo Nunes, Evando de Lacerda, Aldo Giuntini de Magalhães, Wander L. Vasconcelos, E. E. Bernardes

Publikováno v: Revista IBRACON de Estruturas e Materiais, Vol 10, Iss 3, Pp 653-668
Revista IBRACON de Estruturas e Materiais v.10 n.3 2017
Revista IBRACON de Estruturas e Materiais
Instituto Brasileiro do Concreto (IBRACON)
instacron:IBRACON
Revista IBRACON de Estruturas e Materiais, Volume: 10, Issue: 3, Pages: 653-668, Published: JUN 2017

The carbonation process is one of the factors that cause a reduction in the hydrogenionic potential (pH) in cementitious composites, which can lead to a depassivation of the reinforcement structures, thus furnishing conditions for a corrosion process

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fb20e7bd4fac9d23ccdd3cbc6442cbf
https://doi.org/10.1590/s1983-41952017000300006

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Bond Strength between Old and New Concretes with Focus on the Strengthening of Reinforced Concrete Columns - Slant Shear Test versus Double Sleeve Test

Autor: J.N.R. Mantilla, Fernando José da Silva, E.M. Piancastelli, M.A.P. Rezende, Edgar Vladimiro Mantilla Carrasco, Aldo Giuntini de Magalhães, White José dos Santos

Publikováno v: Applied Mechanics and Materials. 864:324-329

The purpose of this paper is to present the main aspects and results of an experimental study to determine the bond strength between the concrete of a column of an existing structure (old concrete) and the concrete that will be used in its strengthen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e43d285507569bc9018da5c52a54428c
https://doi.org/10.4028/www.scientific.net/amm.864.324

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The Influence of the Water/Cement Ratio in the Open Porosity and in the Carbonation Front Advancing in Cementitious Matrix Composites

Autor: Edgar Vladimiro Mantilla Carrasco, Fernando José da Silva, M.A.P. Rezende, White José dos Santos, E.M. Piancastelli, J.N.R. Mantilla, Aldo Giuntini de Magalhães

Publikováno v: Applied Mechanics and Materials. 864:313-317

In this study involving cementitious matrix composites, the influence of the water/cement (w/c) ratio variation (0.48, 0.60, 0.70 and 0.75) was analyzed in its open pore structure and in the carbonation front advancing. Test specimens were molded in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4b5fc4a62bfff91cf797f4394c8f3f4b
https://doi.org/10.4028/www.scientific.net/amm.864.313

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Sustainable Architecture with Bamboo Columns Technology

Autor: Fernando José da Silva, M.A.P. Rezende, Aldo Giuntini de Magalhães, Edgar Vladimiro Mantilla Carrasco, White José dos Santos, E.M. Piancastelli, J.N.R. Mantilla

Publikováno v: Applied Mechanics and Materials. 864:318-323

Compositions with different pipe segments for constructing structural columns were investigated. In this article there is shown a column type composed of five parallel bamboo bars, connected by screws 16 mm and 13 mm in diameter. Compression tests in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e612e724e8350833fba904266fe581f1
https://doi.org/10.4028/www.scientific.net/amm.864.318

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X-ray microtomography (μ-CT) to analyze the pore structure of a Portland cement composite based on the selection of different regions of interest

Autor: Aldo Giuntini de Magalhães, Edgar Vladimiro Mantilla Carrasco, E. E. Bernardes, Wander L. Vasconcelos

Publikováno v: Construction and Building Materials. 95:703-709

The necessity to use reduced sample sizes, in order to achieve better spatial resolution in studies on the pore microstructure of Portland cement matrix composites, leads researchers to perform the fractionation of specimens. However, there is always

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ce3da6b909cc9bfcabb5bec1bae5d68b
https://doi.org/10.1016/j.conbuildmat.2015.07.128

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