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Applications of the Rietveld method to quantify the crystalline phases of Portland cement clinker doped with nickel and chromium

Published online by Cambridge University Press:  06 March 2012

Andréa Vidal Ferreira ,
Ariete Righi ,
Fernando Gabriel Silva Araújo ,
Denise Crocce Romano Espinosa  and
Jorge Alberto Soares Tenório
Andréa Vidal Ferreira
Affiliation:
Centro de Desenvolvimento da Tecnologia Nuclear (CDTN), Comissão Nacional de Energia Nuclear (CNEN), PO 941, 30123-970 Belo Horizonte, Minas Gerais, Brazil
Ariete Righi
Affiliation:
Departamento de Física, Universidade Federal de Minas Gerais, 30123-970 Belo Horizonte, Minas Gerais, Brazil
Fernando Gabriel Silva Araújo
Affiliation:
Departamento de Física, Universidade Federal de Ouro Preto, 35400-000 Ouro Preto, Minas Gerais, Brazil
Denise Crocce Romano Espinosa
Affiliation:
Departamento de Engenharia Metalúrgica e de Materiais, Universidade de São Paulo, 05508-900 São Paulo, São Paulo, Brazil
Jorge Alberto Soares Tenório
Affiliation:
Departamento de Engenharia Metalúrgica e de Materiais, Universidade de São Paulo, 05508-900 São Paulo, São Paulo, Brazil
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Abstract

The effects of chromium or nickel oxide additions on the composition of Portland clinker were investigated by X-ray powder diffraction associated with pattern analysis by the Rietveld method. The co-processing of industrial waste in Portland cement plants is an alternative solution to the problem of final disposal of hazardous waste. Industrial waste containing chromium or nickel is hazardous and is difficult to dispose of. It was observed that in concentrations up to 1% in mass, the chromium or nickel oxide additions do not cause significant alterations in Portland clinker composition.

Keywords

Rietveld methodPortland clinkerwaste co-processingchromiumnickel
Type
Technical Articles
Information
Powder Diffraction , Volume 23 , Special Issue S1 , March 2008 , pp. S42 - S45
Copyright
Copyright © Cambridge University Press 2008

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