It would not be possible to rework the mortars if the St. Astier binders would contain additions of cement, gypsum or would have a higher content of aluminates as all these would promote an irreversible quicker set. |
Standard
|
Reworked
|
Standard
|
Reworked
|
Standard
|
Reworked
|
|
NHL 3.5 Dosage (lbs/cu.ft) |
15.6
|
15.6
|
21.85
|
21.85
|
24.97
|
24.97
|
Water Add. (Gal/cu.ft) |
2
|
2
|
2.2
|
2.2
|
2.3
|
2.3
|
Extra Water |
0.4
|
0.4
|
0.4
|
|||
Time for Rework |
18 h
|
18 h
|
18 h
|
|||
Density (28 days) lbs/cu.ft |
118.6
|
114.9
|
118.6
|
114.9
|
118.6
|
114.9
|
Comp. Strength PSI |
135
|
81
|
181
|
117
|
226
|
157
|
Increased Density lbs/cu.ft |
118.6
|
118.6
|
118.6
|
|||
Comp. Strength On Increased Density (28 days) PSI |
112
|
215
|
280
|