To reduce the amount of Portland cement in a concrete mixture, other materials must be substituted such as coal fly ash and ____.
A) ground granulated blast furnace slag
B) silica
C) common slag
D) limestone

Question

Quizplus · Accepted Answer

Ground granulated blast furnace slag (GGBFS) is commonly used as a partial substitute for Portland cement in concrete mixtures due to its pozzolanic properties, which contribute to the strength and durability of the concrete.

To Reduce the Amount of Portland Cement in a Concrete