Jonas Alexandre
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Afonso Rangel Garcez de Azevedo
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Gustavo de Castro Xavier
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Leonardo Gonçalves Pedroti
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Carlos Maurício Fontes Vieira
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The mining and processing of limestone in the state of Rio de Janeiro, southeast of Brazil, generates a considerable amount of small particles, like a powder ,which is commercialized as a by product. In principle, this inert limestone powder could be recycled as part of another civil construction material. Thus, the objective of this work was to characterize a limestone powder by its physical properties, chemical analysis and microstructural aspects. The results were compared with the characteristics of a common cement and a conventional sand to be possibly applied in the fabrication of limestone incorporated concrete blocks. It was found that the limestone powder has physical, chemical and microstructural characteristics satisfactory for concrete blocks incorporation.
Aplicação de métodos de análise físico-química para avaliação de cafés descafeinados / Application of physical-chemical analysis methods for evaluating decaffeinated coffees
