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MILETIC, S.; ILIC, M.; JOVANIC, P. EDS analysis of portland and portland ash cement HPC degradation in an aggressive environment. In: INTERNATIONAL CONFERENCE ON HIGH- PERFORMANCE CONCRETE, AND PERFORMANCE AND QUALITY OF CONCRTETE STRUCTURES, 2., 1999, Gramado. Anais… Gramado, 1999.
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Número de Trabalhos: 1 (Nenhum com arquivo PDF disponível)
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Dados do autor na base InfoHab:
Número de Trabalhos: 1 (Nenhum com arquivo PDF disponível)
Citações: Nenhuma citação encontrada
Índice h: Indice h não calculado  
Co-autores: Nenhum co-autor encontrado

Dados do autor na base InfoHab:
Número de Trabalhos: 1 (Nenhum com arquivo PDF disponível)
Citações: Nenhuma citação encontrada
Índice h: Indice h não calculado  
Co-autores: Nenhum co-autor encontrado

Abstract

The behaviour of HPC based on portland cement with and without 30% fly ash addition in aggressive solutions was studied. This paper considers the sulphate corrosion of the hardened cement paste as the main constituent of HPC. The cement paste test samples were prepared, cured in water for 21 day and then exposed to the influence of aggressive environment (10% (NH4)2SO4 solution). The measurements of several properties were carried out and the results were analyzed. The image of the surface composition and morphology of the cement paste test samples were made by scanning electron microscopy (SEM). Concentration gradient of sulphate ions in cement paste depth was obtained by energy-dispersive analysis (EDS).
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