Search Results - "Dias Toledo Filho, Romildo"

A review on the chemical, mechanical and microstructural characterization of carbon nanotubes-cement based composites by Mendoza Reales, Oscar Aurelio, Dias Toledo Filho, Romildo

“…•The mechanisms by which CNT’s interact with cement are not fully understood.•Characterization techniques must be adapted to better understand the…”
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Determination of CO2 capture during accelerated carbonation of engineered cementitious composite pastes by thermogravimetry by Neves Junior, Alex, Dweck, Jo, Filho, Romildo Dias Toledo, Ellis, Brian, Li, Victor

“…The concerns about greenhouse gas emissions have triggered investigations among the scientific community. The accelerated carbonation curing has been used as a…”
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Tensile behavior of high performance natural (sisal) fibers by Silva, Flavio de Andrade, Chawla, Nikhilesh, Filho, Romildo Dias de Toledo

“…Environmental awareness and an increasing concern with the greenhouse effect have stimulated the construction, automotive, and packing industries to look for…”
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The hornification of vegetable fibers to improve the durability of cement mortar composites by Claramunt, Josep, Ardanuy, Mònica, García-Hortal, José Antonio, Filho, Romildo Dias Tolêdo

“…The use of vegetable fibers to reinforce a cement-based matrix has its weakest point in terms of durability. The alkalinity of the matrix and the volumetric…”
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Environmental and mechanical performance assessment of bamboo culms and strips for structural use: Evaluation of Phyllostachys pubescens and Dendrocalamus giganteus species by Gomes, Bruno Menezes da Cunha, Silva, Nathalia Andrade da, Bernstad Saraiva, Anna, Caldas, Lucas Rosse, Toledo Filho, Romildo Dias

“…•The environmental and mechanical performance of bamboo culms and strips are evaluated.•A method to better quantify the environmental impacts of bamboo…”
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Effect of internal curing by using superabsorbent polymers (SAP) on autogenous shrinkage and other properties of a high-performance fine-grained concrete: results of a RILEM round-robin test by Mechtcherine, Viktor, Gorges, Michaela, Schroefl, Christof, Assmann, Alexander, Brameshuber, Wolfgang, Ribeiro, António Bettencourt, Cusson, Daniel, Custódio, João, da Silva, Eugênia Fonseca, Ichimiya, Kazuo, Igarashi, Shin-ichi, Klemm, Agnieszka, Kovler, Konstantin, de Mendonça Lopes, Anne Neiry, Lura, Pietro, Nguyen, Van Tuan, Reinhardt, Hans-Wolf, Filho, Romildo Dias Toledo, Weiss, Jason, Wyrzykowski, Mateusz, Ye, Guang, Zhutovsky, Semion

“…The article presents the results of a round-robin test performed by 13 international research groups (representing fifteen institutions) in the framework of…”
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The effect of fiber morphology on the tensile strength of natural fibers by Alves Fidelis, Maria Ernestina, Pereira, Thatiana Vitorino Castro, Gomes, Otávio da Fonseca Martins, de Andrade Silva, Flávio, Toledo Filho, Romildo Dias

“…In the present work the morphology of natural fibers was correlated with their mechanical properties via image analysis. Jute, sisal, curaua, coir and piassava…”
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Nanosilica particles as structural buildup agents for 3D printing with Portland cement pastes by Mendoza Reales, Oscar A., Duda, Pedro, Silva, Emílio C.C.M., Paiva, Maria D.M., Filho, Romildo Dias Toledo

“…•Nanosilica was found to be an efficient thickener for cement paste.•The effect of nanosilica is constrained by the printing velocities.•Additional…”
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Mechanical Properties of Hybrid PVA-Natural Curaua Fiber Composites by Zukowski, Bartosz, Dos Santos Mendonça, Yasmim Gabriela, Tavares, Igor José Koury, Toledo Filho, Romildo Dias

“…This work presents the experimental study of hybrid cement-based composites with polyvinyl alcohol fiber (PVA) and alkali-treated, short, natural curaua fiber…”
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Influence of particle size and specific surface area on the pozzolanic activity of residual rice husk ash by Cordeiro, Guilherme Chagas, Toledo Filho, Romildo Dias, Tavares, Luis Marcelo, Fairbairn, Eduardo de Moraes Rego, Hempel, Simone

“…The effect of the particle size distribution and specific surface area on the pozzolanic activity of a residual rice husk ash (RHA) was investigated in this…”
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Effect of a Carbon Nanotube/Surfactant Aqueous Dispersion on the Rheological and Mechanical Properties of Portland Cement Pastes by Mendoza Reales, Oscar Aurelio, Duda, Pedro, Dias Toledo Filho, Romildo

“…AbstractMultiwalled carbon nanotubes (MWCNT) are expected to enhance the load transfer and increase the flexural strength of a MWCNT-cement composite by…”
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Oligo(Butylene-Succinate) and Nanocatalyst Effect Prediction: Could a Neural Network Determine the Lowest Melting Temperature of this Phase-Changing Material Better than a Classic Approach? by Pereira, Emiliane Daher, de Souza, Fernando Gomes, Pal, Kaushik, da Silveira Maranhão, Fabíola, Filho, Romildo Dias Toledo, Hasparyk, Nicole Pagan, de Melo Monteiro, Vinicius, Dantas, Maria Clara Nascimento, Rodrigues, João Gabriel Passos

“…Phase change materials (PCMs) are functional materials that can absorb thermal energy in latent heat. Among these, the environmentally-friendly Bio-PCMs,…”
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Thermal, Mechanical and Microstructural Analysis of Metakaolin Based Geopolymers by Caballero, Liuski Roger, Paiva, Maria das Dores Macedo, Fairbairn, Eduardo de Moraes Rego, Toledo Filho, Romildo Dias

“…In the present work, geopolymer matrices were developed by alkali activation of metakaolin, using NaOH and sodium silicate as activators. The samples of…”
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Crystalline admixture effects on crystal formation phenomena during cement pastes’ hydration by de Souza Oliveira, Aline, Dweck, Jo, de Moraes Rego Fairbairn, Eduardo, da Fonseca Martins Gomes, Otávio, Toledo Filho, Romildo Dias

“…Crystalline admixtures (CAs), categorized as permeability-reducing admixtures, are commercial products employed in low contents in cement-based materials…”
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Effect of the Combination of Superabsorbent Polymers for Autogenous Shrinkage Control with Steel Fibers of High-Performance Concrete under Uniaxial Tension Using DIC by Santos, Karyne Ferreira dos, Ribeiro, António Carlos Bettencourt Simões, Silva, Eugênia Fonseca da, Manzano, Manuel Alejandro Rojas, Motta, Leila Aparecida de Castro, Toledo Filho, Romildo Dias

“…This paper presents a study of the effect of a superabsorbent polymer (SAP) for autogenous shrinkage control on the uniaxial tensile behavior of steel fiber…”
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Effect of microcrystalline and microfibrillated cellulose on the evolution of hydration of cement pastes by thermogravimetry by Siqueira, Iolanda Scheibe de, Dweck, Jo, Toledo Filho, Romildo Dias

“…The interest in the use of cellulose fibers of increasingly smaller sizes in cementitious materials has increased in recent years. This paper brings new…”
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Coupled temperature and moisture effects on the tensile behavior of strain hardening cementitious composites (SHCC) reinforced with PVA fibers by de Oliveira, Andrielli Morais, Silva, Flávio de Andrade, Fairbairn, Eduardo de Moraes Rego, Filho, Romildo Dias Toledo

“…This paper reports the experimental findings on the tensile behavior of strain-hardening cement-based composites (SHCC). The composites were subjected to the…”
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Effect of Number of Layers on Tensile and Flexural Behavior of Cementitious Composites Reinforced with a New Sisal Fabric by Arruda Filho, Adilson Brito de, Lima, Paulo Roberto Lopes, Carvalho, Ricardo Fernandes, Gomes, Otavio da Fonseca Martins, Filho, Romildo Dias Toledo

“…The use of fabric in reinforcing cement-based materials expands their applications for various types of construction elements. Additionally, employing…”
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Effect of plain and carboxylated styrene-butadiene rubber on the rheological behavior of silica fume-class G Portland cement slurries by Vitorino, Fabrício de Campos, Dweck, Jo, Ferrara, Liberato, Filho, Romildo Dias Toledo

“…The incorpation of a high pozzolan content in cement systems enables an enhanced thermal stability. In an even harsh condition, where imposed deformations…”
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Effect of moisture movement on the tensile stress–strain behavior of SHCC with alkali treated curauá fiber by Zukowski, Bartosz, dos Santos Mendonça, Yasmim Gabriela, de Andrade Silva, Flávio, Toledo Filho, Romildo Dias

“…This work presents the influence of the wetting and drying cycles on the tensile behavior of the strain-hardening cement-based composites reinforced with…”
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