| Full text | |
| Author(s): |
Erika Y. Nakanishi
[1]
;
Ernesto Villar-Cociña
[2]
;
Sérgio F. Santos
[3]
;
Michelle S. Rodrigues
[4]
;
Pedro S. Pinto
[5]
;
Holmer Savastano Junior
[6]
Total Authors: 6
|
| Affiliation: | [1] Universidade de São Paulo. Faculdade de Zootecnia e Engenharia de Alimentos. Departamento de Engenharia de Biossistemas - Brasil
[2] Universidade Central de Las Vilas. Departamento de Física - Cuba
[3] Universidade de São Paulo. Faculdade de Zootecnia e Engenharia de Alimentos. Departamento de Engenharia de Biossistemas - Brasil
[4] Faculdade de Tecnologia de São Paulo - Centro Paula Souza - Brasil
[5] Universidade de São Paulo. Faculdade de Zootecnia e Engenharia de Alimentos. Departamento de Engenharia de Biossistemas - Brasil
[6] Universidade de São Paulo. Faculdade de Zootecnia e Engenharia de Alimentos. Departamento de Engenharia de Biossistemas - Brasil
Total Affiliations: 6
|
| Document type: | Journal article |
| Source: | Química Nova; v. 37, n. 5, p. 766-769, 2014-06-00. |
| Abstract | |
Elephant grass ash (EGA) was produced at 700 °C, with two different treatments: hot water (EGAhw) or acid solution (EGAas). The efficiency of the treatments at removing the potassium oxide was evaluated with the aim of using the EGA as a pozzolanic mineral addition for cement-based composites. Characterizations were carried out by X-ray fluorescence (XRF), X-ray diffraction (XRD), pozzolanic activity by electric conductivity and application of the kinetic-diffusive model. The analysis evidenced that the chemical treatment was more efficient for removing potassium oxide. The pozzolanic activity test and the kinetic parameters for the EGAas indicated that this ash is suitable for cement-based composites. (AU) | |
| FAPESP's process: | 11/16842-5 - Waste ashes from the burning of the elephant grass (Pennisetum purpureum) as pozzolanic material for the partial substitution of the ordinary Portland cement |
| Grantee: | Erika Yukari Nakanishi |
| Support Opportunities: | Scholarships in Brazil - Master |
| FAPESP's process: | 09/17293-5 - Fracture mechanics applied to the development of non conventional extruded composites reinforced with cellulosic and synthetic fibers |
| Grantee: | Sérgio Francisco dos Santos |
| Support Opportunities: | Research Grants - Young Investigators Grants |
| FAPESP's process: | 10/16524-0 - Fracture mechanics applied to the development of non conventional extruded composites reinforced with cellulosic and syntetic fibers |
| Grantee: | Sérgio Francisco dos Santos |
| Support Opportunities: | Scholarships in Brazil - Young Researchers |