Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Maria D. M. Paiva"'
Autor:
Emílio C. C. M. Filho, Reiner Silva, Toledo, Oscar Aurelio Mendoza Reales, Romildo Dias Castrillon Fernandez, Larissa Duarte Fonseca, Maria D. M. Paiva, Letícia Ikeda Rocha, Neumann
Publikováno v:
ACI Materials Journal. 118
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a016b6fe39f5a62c662cee3af69b45f
https://doi.org/10.14359/51733122
https://doi.org/10.14359/51733122
Autor:
Maria D. M. Paiva, Romildo Dias Toledo Filho, Oscar Aurelio Mendoza Reales, Emílio C. C. M. Silva, Pedro Duda
Publikováno v:
Construction and Building Materials. 219:91-100
This work presents a comparative study of the effects of nanosilica particles on the fresh state properties of a Portland cement paste designed for 3D printing. Cement pastes were prepared with different solid substitutions of cement by pozzolanic pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d38bcda976e0dd965f5729fbb59a592
https://doi.org/10.1016/j.conbuildmat.2019.05.174
https://doi.org/10.1016/j.conbuildmat.2019.05.174
Autor:
Maria D. M. Paiva, Romildo Dias Toledo Filho, Liuski Roger Caballero, Eduardo de Moraes Rego Fairbairn
Publikováno v:
Materials Research, Vol 22, Iss 2 (2019)
Materials Research v.22 n.2 2019
Materials research (São Carlos. Online)
Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
Materials Research, Volume: 22, Issue: 2, Article number: e20180716, Published: 20 MAY 2019
Materials Research v.22 n.2 2019
Materials research (São Carlos. Online)
Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
Materials Research, Volume: 22, Issue: 2, Article number: e20180716, Published: 20 MAY 2019
In the present work, geopolymer matrices were developed by alkali activation of metakaolin, using NaOH and sodium silicate as activators. The samples of metakaolin and matrices were studied by thermal analysis (TGA/DTA) at temperatures between 22°C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c43190255e5f1b3e41c9fd42e5eff35
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000200240&tlng=en
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000200240&tlng=en
Autor:
Antonio Eduardo Martinelli, Maria D. M. Paiva, Emílio C. C. M. Silva, José Fabian Schneider, Dulce Maria de Araújo Melo
Publikováno v:
Repositório Institucional da UFRN
Universidade Federal do Rio Grande do Norte (UFRN)
instacron:UFRN
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade Federal do Rio Grande do Norte (UFRN)
instacron:UFRN
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Oil wells subjected to cyclic steam injection often present cement sheath failures due to thermal loads. Currently, different Portland based systems are employed to mitigate this risk. We developed and tested geopolymer systems that meet oil well cem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03b1c0cf30bf5f9ff8e80138669d0f77
https://repositorio.ufrn.br/handle/123456789/31588
https://repositorio.ufrn.br/handle/123456789/31588
Autor:
Fernando Gomes de Souza Junior, Ellen Guimarães Oliveira Grance, Romildo Dias Toledo Filho, Maria D. M. Paiva
Publikováno v:
Research & Development in Material Science. 7
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48aed882a9e9488f68d5b549ff3c8289
https://doi.org/10.31031/rdms.2018.07.000666
https://doi.org/10.31031/rdms.2018.07.000666
Autor:
Gilson Campos, Krishna Babu Yerubandi, Siva Rama Krishna Jandhyala, Maria D. M. Paiva, Abhimanyu Deshpande, Mauricio Gimenes Folsta, Krishna M. Ravi, Sandip Prabhakar Patil, Cristina Aiex Simão
Publikováno v:
Day 1 Wed, September 14, 2016.
Recent deepwater discoveries in CO2-laden presalt regions have posed new drilling and cementing challenges associated with salt and CO2. Salt can react and gel cement slurry prematurely, resulting in pumping and displacement issues. Further, creeping
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8f20bc4e01b418e4be7554cf3063c17
https://doi.org/10.2118/180336-ms
https://doi.org/10.2118/180336-ms
Autor:
F. M. M. Borges, Dulce Maria de Araújo Melo, Hiléia K.S. Souza, E. A. Sousa, H. Scatena, Maria D. M. Paiva
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 93:959-962
The reason of comparing thermal behaviour and kinetics of some nickel compounds, is justified by the influence of anion on it, besides supplying information on the stability of the salts. In this work, Ni(TMS)2·6H2O, Ni(TFA)2·3H2O and Ni(Ac)2·2H2O
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b770b5a72ea630a7d4f5c6ab60b5920d
https://doi.org/10.1007/s10973-007-8633-3
https://doi.org/10.1007/s10973-007-8633-3
Autor:
Cristina Aiex, Abhimanyu Deshpande, Rahul Chandrakant Patil, Gilson Campos, Krishna M. Ravi, Abhinandan Chiney, Maria D. M. Paiva
Publikováno v:
All Days.
The recent increase in production from reservoirs containing in-situ CO2 and H2S; and injection of produced CO2 for geological carbon dioxide storage and enhanced oil recovery (EOR) has prompted strict risk assessment, well construction best practice
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a70687b6444c1d79c9151bafb829367d
https://doi.org/10.2118/174328-ms
https://doi.org/10.2118/174328-ms
Autor:
Abhimanyu Deshpande, Abhinandan Chiney, Sandip Prabhakar Patil, Maria D. M. Paiva, Cristina Aiex, Krishna M. Ravi, Gilson Campos
Publikováno v:
All Days.
The industry is exploring for oil and gas in reservoirs that contain in-situ corrosive fluids, such as CO2 and H2S. In addition, there has been a push to sequester the CO2 produced from various industrial sources. To this effect, geological carbon di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a286cb07dac402930b38d319ecbd483
https://doi.org/10.2118/174329-ms
https://doi.org/10.2118/174329-ms
Autor:
Jose Altamiro Carrilho Mota dos Santos, Valdir Pereira Barbosa, Jose Bezerra de Almeida Neto, Francisco Henrique Macambira Santos, Maria D. M. Paiva, Joao Walter Pereira Suzart
Publikováno v:
All Days.
The northeastern region of Brazil is the largest onshore oil producer in the country. However, regional oil production is still much less than offshore production in other Brazilian basins. Therefore, customized low-cost technologies are routinely em
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7aef4ef02cb9f6a5f0270dfddf5d3e85
https://doi.org/10.2118/121922-ms
https://doi.org/10.2118/121922-ms