Table 1.
Mix proportions for various concrete batches prepared for testing compressive strength to determine amount of TDA to be used.
| Component, lb (kg) | Batch number | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | |
| Cement | 92.5 (42) |
92.5 (42) |
92.5 (42) |
92.5 (42) |
92.5 (42) |
92.5 (42) |
92.5 (42) |
92.5 (42) |
92.5 (42) |
92.5 (42) |
92.5 (42) |
92.5 (42) |
|
| ||||||||||||
| Silica fume | 18.5 (8.4) |
18.5 (8.4) |
18.5 (8.4) |
18.5 (8.4) |
||||||||
|
| ||||||||||||
| Rock (coarse aggregates) | 393.6 (179) |
326.7 (148) |
354.3 (161) |
354.3 (161) |
354.3 (161) |
354.3 (161) |
354.3 (161) |
354.3 (161) |
364.1 (165) |
364.1 (165) |
364.1 (165) |
|
|
| ||||||||||||
| Sand (fine aggregates) | 259.2 (118) |
259.2 (118) |
259.2 (118) |
259.2 (118) |
259.2 (118) |
259.2 (118) |
259.2 (118) |
259.2 (118) |
259.2 (118) |
259.2 (118) |
259.2 (118) |
259.2 (118) |
|
| ||||||||||||
| Water | 51.2 (23) |
51.2 (23) |
51.2 (23) |
51.2 (23) |
51.2 (23) |
51.2 (23) |
51.2 (23) |
51.2 (23) |
51.2 (23) |
51.2 (23) |
51.2 (23) |
51.2 (23) |
|
| ||||||||||||
| TDA | 118.8 (54) |
24.3 (11) |
14.3 (6.5) |
14.3 (6.5) |
14.3 (6.5) |
14.3 (6.5) |
14.3 (6.5) |
14.3 (6.5) |
10.3 (4.8) |
10.3 (4.8) |
10.3 (4.8) |
|
|
| ||||||||||||
| 2-part epoxy | ✓ | |||||||||||
|
| ||||||||||||
| NaOH | ✓ | ✓ | ||||||||||
|
| ||||||||||||
| Total | 796 (361) |
522 (237) |
754 (342) |
771 (350) |
771 (350) |
771 (350) |
771 (350) |
771 (350) |
790 (358) |
796 (361) |
796 (361) |
777 (352) |