Seven chemical admixture types according to ASTM 494 Categories
ASTM C494 specifies the requirements for seven chemical admixture types. They are below:
· Type A: Water-reducing admixtures
· Type B: Retarding admixtures
· Type C: Accelerating admixtures
· Type D: Water-reducing and retarding admixtures
· Type E: Water-reducing and accelerating admixtures
· Type F: Water-reducing, high range admixtures
· Type G: Water-reducing, high range, and retarding admixtures