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Q: Addition of Ground Granulated Blast Furnace Slag (GGBS) in concrete leads to
  • A. reduction in heat of hydration
  • B. reduction in durability
  • C. early setting of concrete
  • D. All of the above
Correct Answer: Option A - Ground granulated furnace- slag is a non-metallic product consisting essentially of glass containing silicate and alumino-silicate of lime and other bases, as in the case of blast furnace slag, which is developed simultaneously with iron in blast furnace or electric pig furnace. This is used in Portland slag cement. Slag develop cement produce low heat so use this type cement is mass concreting.
A. Ground granulated furnace- slag is a non-metallic product consisting essentially of glass containing silicate and alumino-silicate of lime and other bases, as in the case of blast furnace slag, which is developed simultaneously with iron in blast furnace or electric pig furnace. This is used in Portland slag cement. Slag develop cement produce low heat so use this type cement is mass concreting.

Explanations:

Ground granulated furnace- slag is a non-metallic product consisting essentially of glass containing silicate and alumino-silicate of lime and other bases, as in the case of blast furnace slag, which is developed simultaneously with iron in blast furnace or electric pig furnace. This is used in Portland slag cement. Slag develop cement produce low heat so use this type cement is mass concreting.