ASTM C494
 
Requirement
Type of Chemical Admixture
A
B
C
D
E
F
G
Water content, % of control max.
95
-
-
95
95
88
88
Time of setting; allowable deviation              
Initial: at least 
-
1:00 later 
1:00 earlier 
1:00 later 
1:00 earlier 
-
1:00 later 
not more than
1:00 earlier nor 1:30 later
3:30 later
3:30 earlier
3:30 later
3:30 earlier
1:00 earlier nor 1:30 later
3:00 later
Final: at least 
-
- 
1:00 earlier
-
1:00 earlier
-
-
not more than
1:00 earlier nor 1:30 later
3:30 later
-
-
  
1:00 earlier nor 1:30 later
3:30 later
Compressive Strength % of control minimum: 1 day
-
-
-
-
-
140
125
3 days
110
90
125
110
125
125
125
7 days
110
90
100
110
110
115
115
28 days
110
90
100
110
110
100
110
1 year
100
90
90
100
100
100
100
Note:

A: Water Reducing

B: Retarding

C: Accelerating

D: Water Reducing and Retarding

E: Water Reducing and Accelerating

F: Water Reducing, High Range

G: Water Reducing, High Range and Retarding