Geopolymers
Inorganic polymeric new materials
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Armando Lucas Cherem da Cunha
Armando Lucas Cherem da Cunha
School of Chemistry, Rio de Janeiro Federal University, Bloco E do CT Sala E206, Cidade Universitária, Rio de Janeiro, RJ, 21949-900, Brazil
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Mariana Santos Lemos
Mariana Santos Lemos
School of Chemistry, Rio de Janeiro Federal University, Bloco E do CT Sala E206, Cidade Universitária, Rio de Janeiro, RJ, 21949-900, Brazil
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Sergio Meth
Sergio Meth
Department of Chemistry, Loker Hydrocarbon Research Institute, University of Southern California, Los Angeles, CA, 90089-1661, USA
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Jardel Pereira Gonçalves
Jardel Pereira Gonçalves
Department of Construction and Structure, Bahia Federal University, Polytechnic School, Rua Aristides Novis 02, Salvador, BA, 47805-100, Brazil
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Jo Dweck
Jo Dweck
School of Chemistry, Rio de Janeiro Federal University, Bloco E do CT Sala E206, Cidade Universitária, Rio de Janeiro, RJ, 21949-900, Brazil
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A study by thermogravimetry was done to evaluate the influence of the particle size on the pozzolanic activity of a residual equilibrium catalyst from a fluid catalytic cracking unit of a Brazilian refinery. For this purpose, cement type II pastes with the same substitution degree containing coarse, medium, and fine fractions of the residual catalyzer were evaluated after 28 days of setting. Using thermogravimetric and derivative thermogravimetric analysis, the contents of total combined water and calcium hydroxide were determined. Comparing the results on initial cement mass basis of each sample with those of a control paste without any residual catalyst addition, it can be seen that the coarse and medium fractions present similar pozzolanic activity and the fine one presents a higher activity than the others due to its specific area and composition.
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12. Pinto, CA, Buchler, PM, Dweck, J. Pozzolanic properties of a residual FCC catalyst during the early stages of cement hydration—evaluation by thermal analysis. J Therm Anal Calorim. 2007;87: 3 715–720. .
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13. Cherem da Cunha, AL, Gonçalves, JP, Cartledge, FK, Toledo Filho, RD, Dweck, J. Evaluation of metakaolin pozzolanic reactivity in cement pastes. Mater Sci Forum. 2008;591–593:827–832. .
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16. Dweck, J, Cherem da Cunha, AL, Pinto, CA, Gonçalves, JP, Buchler, PM. The use of FCC spent catalysts in substitution to cement to reduce carbon dioxide emissions. Hydroc World. 2009;4: 2 85–87.
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| Journal of Thermal Analysis and Calorimetry | |
|---|---|
| Language | English |
| Size | A4 |
| Year of Foundation |
1969 |
| Volumes per Year |
1 |
| Issues per Year |
24 |
| Founder | Akadémiai Kiadó |
| Founder's Address |
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. |
| Publisher | Akadémiai Kiadó Springer Nature Switzerland AG |
| Publisher's Address |
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11. |
| Responsible Publisher |
Chief Executive Officer, Akadémiai Kiadó |
| ISSN | 1388-6150 (Print) |
| ISSN | 1588-2926 (Online) |
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Temperature dependence of the rate of reaction in thermal analysis
The Arrhenius equation in condensed phase kinetics
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