Índice De Desempenho De Misturas Ternárias Contendo Cimento Portland Sílica De Casca De Arroz E Nanossílica Coloidal

Abstract

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Dataset construction and data science analysis of physicochemical characterization of ordinary Portland cement

“…The fineness of the cement is related to the specific surface of the grains and its determination serves mainly to check the uniformity of the material's grinding process. Normally, this property can be measured by using nitrogen adsorption technique (BET), based on a mathematical theory that has the measurement of the specific surface area of a material through the physical adsorption of hydrogen gas molecules on the surface [16], and Blaine air-permeability apparatus, which the specific surface is expressed as area total surface area in square centimeters per gram, or square meters per kilogram, of cement [17]. Since the reaction of Portland cement with water is an effect from the outer surface to the inner surface of the grain, that is, the degree of grinding of the cement will influence the hydration speed and the development of compressive strength [1], [6], [11].…”