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Effect of Temperature, Time and Waiting Conditionson the Rheology of Self-Compacting Concrete

Part 1/2: Mortar Response


The environmental conditions, and especially ambient temperature, significantly influence the fresh behavior of self-compacting concrete and, consequently, the material characteristics during production. Along these lines, the present work evaluates the effect of the temperature on the fresh properties of mortar from SCC, considering a wide range of temperatures (10-40ºC). The mortar used was prepared according to the material proportions of self-compacting concretes evaluated in the second part of this study. Rheological parameters, as well as engineering- type tests, were evaluated along time, considering different waiting conditions (stationary and continuous stirring). Results show a significant influence of temperature on the rheological parameters, especially on plastic viscosity, concluding that its influence has to be considered during production.

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CPi worldwide journals are trade journals for the concrete and precast concrete industry that are published in 10 different language editions in more than 170 countries. These trade journals, with their practical editorial reporting on research, production and applications, are specifically addressing the decision makers of the concrete and precast concrete industry.

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