Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Eugênia Fonseca da Silva"'
Autor:
Karyne Ferreira dos Santos, António Carlos Bettencourt Simões Ribeiro, Eugênia Fonseca da Silva, Manuel Alejandro Rojas Manzano, Leila Aparecida de Castro Motta, Romildo Dias Toledo Filho
Publikováno v:
Materials, Vol 13, Iss 20, p 4638 (2020)
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 reinforced concrete (SFRC). The use of fibers and SAP potentially increases the durability of
Externí odkaz:
https://doaj.org/article/4de5b86c37f24ad6ad7190de059f8e55
Autor:
Silva, Arthur Aviz Palma E, Valdirene Maria Silva Capuzzo, Eugênia Fonseca Da Silva, Pereira, André Maués Brabo
The present study aimed to assess the effectiveness of the image segmentation technique utilizing the Threshold method for the measurement of porosity in high-strength microconcrete samples that incorporate metakaolin. Specifically, X-ray microtomogr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fd963c908bab3fd364e8cf5b96c174c
Autor:
Romildo Dias Toledo Filho, Eugênia Fonseca da Silva, Manuel Alejandro Rojas Manzano, Anne Neiry de Mendonça Lopes
Publikováno v:
Matéria (Rio de Janeiro), Volume: 26, Issue: 2, Article number: e12956, Published: 24 MAY 2021
Matéria (Rio de Janeiro) v.26 n.2 2021
Matéria (Rio de Janeiro. Online)
instacron:RLAM
Matéria (Rio de Janeiro) v.26 n.2 2021
Matéria (Rio de Janeiro. Online)
instacron:RLAM
RESUMO Os polímeros superabsorventes (PSA) são materiais poliméricos de origem sintético, cujas cadeias reticuladas formam uma rede tridimensional. A sua principal característica é a capacidade de absorver uma grande quantidade de líquido do a
Autor:
Eugênia Fonseca da Silva, Juliana Gonçalves Borges, Daiane Vitória Machado Ramos Cupertino, Livia B. Agostinho
Publikováno v:
Matéria (Rio de Janeiro) v.25 n.4 2020
Matéria (Rio de Janeiro. Online)
instacron:RLAM
Matéria (Rio de Janeiro. Online)
instacron:RLAM
A aplicacao da tecnica de calorimetria por conducao isotermica possibilita a avaliacao da velocidade das reacoes de hidratacao de forma simplificada e eficiente, ao longo do tempo, pelas curvas de evolucao de calor. Essa tecnica pode ser a ferramenta
Publikováno v:
Matéria (Rio de Janeiro) v.25 n.1 2020
Matéria (Rio de Janeiro. Online)
instacron:RLAM
Matéria (Rio de Janeiro. Online)
instacron:RLAM
RESUMO O Brasil ainda apresenta um baixo consumo de cimento (260 kg/hab./ano) quando comparado a media mundial (553 kg/hab./ano), aliado ao elevado déficit habitacional e de infraestrutura do país. A expectativa de crescimento populacional aponta p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33ab490b31469864decdec4a841d50dd
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762020000100333
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762020000100333
Publikováno v:
3rd International Conference on the Application of Superabsorbent Polymers (SAP) and Other New Admixtures Towards Smart Concrete ISBN: 9783030333416
Autogenous shrinkage is a phenomenon that affects the High Performance Concrete (HPC), mainly due to its refined microstructure, the high cement content, the low w/c ratio and the presence of mineral additions. This is closely associated to the hydra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df5e1214ae10bc5c1f7522a439e6e511
https://doi.org/10.1007/978-3-030-33342-3_23
https://doi.org/10.1007/978-3-030-33342-3_23
Publikováno v:
3rd International Conference on the Application of Superabsorbent Polymers (SAP) and Other New Admixtures Towards Smart Concrete ISBN: 9783030333416
The Carlson-type strain gages are the most suitable for the measurement of autogenous shrinkage. However, your high cost is usually a limiting factor for your employment. A more economical alternative would be the use of Self-Temperature-Compensation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76118fb15a9e6807a49c3c9d68251dbb
https://doi.org/10.1007/978-3-030-33342-3_13
https://doi.org/10.1007/978-3-030-33342-3_13
Autor:
Daiane Vitória Machado Ramos Cupertino, Livia B. Agostinho, Eugênia Fonseca da Silva, Thyala A. Cunha
Publikováno v:
3rd International Conference on the Application of Superabsorbent Polymers (SAP) and Other New Admixtures Towards Smart Concrete ISBN: 9783030333416
With the application of isothermal calorimetry technique, the speed of the hydration reactions can be evaluated in a simplified and efficient way, over time, by the heat evolution curves. This technique can become a suitable tool to understand the pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6764096ec2fea18d6702c9aaaa47b2b0
https://doi.org/10.1007/978-3-030-33342-3_1
https://doi.org/10.1007/978-3-030-33342-3_1
Publikováno v:
RILEM Bookseries ISBN: 9783030225650
The usual test to obtain the better superplasticizer (SP) to be used and also their content in the admixture is the Marsh cone test, but it demands a lot of material to perform it. On other hand, the use of the parallel-plate rotational rheometry all
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6981583546aae8f777eacf9c329c92a
https://doi.org/10.1007/978-3-030-22566-7_18
https://doi.org/10.1007/978-3-030-22566-7_18
Autor:
Eugênia Fonseca da Silva, de C. Pereira Alexandre, Romildo Dias Toledo Filho, Livia B. Agostinho
Publikováno v:
Journal of Building Engineering. 34:102024
This paper addresses the use of rotational rheometry in determining the rheological parameters (viscosity and yield stress) of cement pastes over time. This study employed Portland cement pastes modified with superabsorbent polymer (SAP) and nanosili