Zobrazeno 1 - 10 of 403 pro vyhledávání: '"R D Toledo Filho"'
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Akademický článek
Efeito do tempo de exposição a uma atmosfera coqueificante na microestrutura e nas propriedades de um concreto refratário usado na indústria petroquímica Effect of the exposure time in cokemaking atmosphere on the microstructure and properties of a refractory castable used in the petrochemical industry
Autor: M. D. Cabrelon, A. H. A. Pereira, J. Medeiros, R. D. Toledo-Filho, J. A. Rodrigues
Publikováno v: Cerâmica, Vol 58, Iss 346, Pp 195-204 (2012)
Os concretos refratários usados em unidades de craqueamento catalítico fluidizado (UFCC) podem sofrer deterioração pela deposição de coque durante o processo de produção de hidrocarbonetos leves, ocasionando a diminuição do tempo de funcion
Externí odkaz: https://doaj.org/article/17793dff13094452a1a89bd0adbd767d
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2
Bio-concretes and GHG emissions reduction: what the scientific literature says?
Autor: T P L Siqueira, T S W Sá, L R Caldas, N P Hasparyk, R D Toledo Filho
Publikováno v: IOP Conference Series: Earth and Environmental Science. 1101:022026
Bio-concretes incorporates several types of biomaterials, and they emerge as a sustainable alternative to traditional concrete. In this context, the use of Life Cycle Assessment (LCA) to evaluate the environmental performance of these materials becom
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::68844923b69e9cba0ee047943c700a28
https://doi.org/10.1088/1755-1315/1101/2/022026
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4
Static flexural behavior of bamboo as a functionally graded material and the effect of heat on dynamic flexural modulus
Autor: Arash Azadeh, Khosrow Ghavami, R. D. Toledo Filho, H. Savastano Junior, Normando Perazzo Barbosa
Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
The objective of the present investigation is to study the static and dynamic flexural behavior of bamboo as a functionally graded material to determine the Static Flexural Modulus (SFM) for untreated bamboo samples and to evaluate the effect of heat
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f752a906e443c05b5d377d903cc0e69
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5
Enhancement the Properties of Sugar Cane Bagasse Ash with High Carbon Content by a Controlled Re-calcination Process
Autor: Guilherme Chagas Cordeiro, T. R. Barroso, R. D. Toledo Filho
Publikováno v: KSCE Journal of Civil Engineering. 22:1250-1257
In this study, the feasibility and effectiveness of a controlled laboratory re-calcination process was evaluated in order to mitigate the negative effects of Sugar Cane Bagasse Ash (SCBA) with high carbon content on hydration and fresh properties of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1d74a777c9def138d62e708d3c6a9eeb
https://doi.org/10.1007/s12205-017-0881-6
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6
Molecular grafting of nanoparticles onto sisal fibers - adhesion to cementitious matrices and novel functionalities
Autor: S. A. Ovalle-Serrano, Cristian Blanco-Tirado, Fernando G. Souza, Renata Daniel dos Santos, Sabu Thomas, Marianny Y. Combariza, Flávio de Andrade Silva, R. D. Toledo Filho, Geiza E. Oliveira, Saulo Rocha Ferreira
Publikováno v: Journal of Molecular Structure. 1234:130171
Cement materials have good compression strength, but poor tensile resistence. Aiming to improve this property, natural fibers can be applied as reinforcement. However, natural fibers have low adhesion with cement, and surface treatments are needed. I
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f306062d12667ff772420e89c25584c3
https://doi.org/10.1016/j.molstruc.2021.130171
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7
Improved pozzolanic activity of sugar cane bagasse ash by selective grinding and classification
Autor: Guilherme Chagas Cordeiro, R. D. Toledo Filho, Luís Marcelo Tavares
Publikováno v: Cement and Concrete Research. 89:269-275
Selective grinding was identified as a potential technology to reduce the content of quartz in sugar cane bagasse ash (SCBA), so as to assist in developing an improved supplementary cementitious material. The selective grinding strategy comprised of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::27a491e419881adc783c8cc2c85be87f
https://doi.org/10.1016/j.cemconres.2016.08.020
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8
The effect of freeze-thaw cycles on the mechanical performance of RAC
Autor: Enzo Martinelli, Caroline Santana Rangel, Mayara Amario, R. D. Toledo Filho, Marco Pepe
Publikováno v: Italian Concrete Days 2018
Università degli studi di Salerno-IRIS
Lecture Notes in Civil Engineering ISBN: 9783030237479
The recycling of Construction and Demolition Waste (CDW) to be used as aggregates for concrete is a potential al-ternative to minimize the environmental impact. In cold regions, the damage caused to concrete structures by freezing and thawing is a se
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a26b69fef67fe43c7b2141ba900518b0
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10
The Influence of Recycled Concrete and Clay Brick Particles on the Strength and Porosity of Cement-Based Pastes
Autor: R. D. Toledo Filho, Thiago Melo Grabois, Guilherme Chagas Cordeiro
Publikováno v: RILEM Bookseries ISBN: 9789402412062
Experimental results of pore size distribution and compressive strength on hardened cement-based pastes containing fine ground particles from the recycling of construction and demolition waste (CDW) are reported. Supplementary cementitious material (
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a7daeeef0bdb8143562634bca009f9b9
https://doi.org/10.1007/978-94-024-1207-9_30
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