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Workability and strength development

Early-age properties of concrete containing various types of granulated slag


This research investigated fresh and hardened properties of concretes containing three different types of slag at three different replacement ratios and three different water/binder ratios. The three types of slag include ground granulated blastfurnace slag, ground granulated Corex slag and a ground granulated ferro-manganese arc furnace slag. The test results indicate that the use of the slags under investigation increases concrete workability at high water/binder ratios only. One-day strength values were strongly dependent on the slag replacement ratio. The influence of slag replacement level on compressive strength reduced over time. Notably, strength development characteristics and long-term strength values were considerably different for different types of slag.

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CPi worldwide journals are trade journals for the concrete and precast concrete industry that are published in 12 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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