Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Nilson S. Amorim Júnior"'
Autor:
Daniel V. Ribeiro, Nilson S. Amorim Júnior, Bruna S. Santos, Henrique A. Santana, Silas A. Pinto
Publikováno v:
Case Studies in Construction Materials, Vol 19, Iss , Pp e02466- (2023)
Reinforcement corrosion is a problem affecting the durability of most concrete structures. When concrete is employed without proper care, it may function inadequately as a barrier, allowing aggressive ions or acidic substances in the atmosphere to at
Externí odkaz:
https://doaj.org/article/4553ab5a969c4295921f490f979c0337
Publikováno v:
Cement, Vol 9, Iss , Pp 100036- (2022)
The incorporation of different levels of UOW into Portland clinker raw meals and its effects on the clinker and cement properties were evaluated. Clinkers were produced and characterized by X-ray diffractometry (XRD) and optical microscopy; the cemen
Externí odkaz:
https://doaj.org/article/acc7bcae54b0476e8c7a774f1b6026e5
Autor:
Henrique. A. Santana, Nilson S. Amorim Júnior, Daniel V. Ribeiro, Marcelo S. Cilla, Cleber M. R. Dias
Publikováno v:
Journal of Materials in Civil Engineering. 35
Autor:
Nilson S. Amorim Júnior, Cleber Marcos Ribeiro Dias, Guilherme Augusto de Oliveira e Silva, Daniel Véras Ribeiro
Publikováno v:
Construction and Building Materials. 222:108-118
This paper presents a study regarding the durability of concrete containing Recycled Coarse Aggregate (RCA) from the largest civil construction waste plant in Latin America, CTR Grajau, located in Sao Paulo, Brazil. Conventional reference concretes w
Autor:
Nilson S. Amorim Júnior, José da Silva Andrade Neto, Daniel Véras Ribeiro, Diana Dayse Mariano de Albuquerque
Publikováno v:
Key Engineering Materials. 803:289-293
This paper evaluates the effect of the incorporation of unreacted ilmenite (UOW), waste from the production of titanium dioxide, on the hydration of white Portland cement – hydrated lime pastes. For this, after the physical and mineralogical charac
Autor:
Nilson S. Amorim Júnior, Bruna Bueno Mariani, Daniel Véras Ribeiro, José da Silva Andrade Neto
Publikováno v:
Key Engineering Materials. 803:278-283
The aim of the present study is to evaluate the properties of cements produced from clinkers co-processed with unreacted ore waste (UOW), that is a waste generated in TiO2 production. A commercial CP V ARI RS cement and four different cements produce
Autor:
Daniel Véras Ribeiro, José da Silva Andrade Neto, Nilson S. Amorim Júnior, Ivan H.L. Santos, Silas de Andrade Pinto, Saulo L. Marques, Mavisson Júlio Santos de França
Publikováno v:
CONGRESO LATINO-AMERICANO DE PATOLOGÍA DE CONSTRUCCIÓN.
Rebar corrosion in reinforced concrete is one of the most serious manifestations that affect structures, resulting in considerable technical, financial, and social consequences. The corrosive process can be accelerated by carbonation or the action of
Autor:
Vitor Souza Santos, Nilson S. Amorim Júnior, José da Silva Andrade Neto, Diana Dayse Mariano de Albuquerque, Daniel Véras Ribeiro
Publikováno v:
Key Engineering Materials. 765:319-323
Waste generation is one of the main problems of contemporary society, resulting in high economic costs and environmental impacts, such as the contamination of water sources, groundwater and soil. In this context, there is the unreacted mineral (URM),
Autor:
Daniel Véras Ribeiro, Nilson S. Amorim Júnior, Cleber Marcos Ribeiro Dias, Marcelo S. Cilla, Henrique A. Santana
Publikováno v:
Journal of Building Engineering. 44:103291
Alkali-activated binders (AAB) are materials based mainly on silica, alumina , and/or calcium precursors , activated by an alkaline solution, and have mechanical properties equivalent to Portland cement-based matrices. However, their brittle behavior
Autor:
Nilson S. Amorim Júnior, Daniel Véras Ribeiro, José da Silva Andrade Neto, Barbara P. Mazzilli, Diana Dayse Mariano de Albuquerque
Publikováno v:
Construction and Building Materials. 306:124885
The objective of this study was to investigate the effect of the addition of residue from the production of TiO2, namely, unreacted ore waste (UOW), on the properties of coating mortars as well as evaluate its radiological impact. The properties of t