Table 5.
Mortar cube compressive strength results (in psi/MPa)
| OPC | LS20 | LS30 | LS40 | CaCl2-1 | CaCl2-2 | CaCl2-3 | Hybrid | LS2_05 | LS2_13 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 d @ 23°C | 3950/27.3 (2.8 %)g | 4620/31.9 (3.1 %) | 4950/34.1 (3.4 %) | 5170/35.7 (2.8 %) | 4780/32.9 (11.6 %) | 4990/34.4 (2.0 %) | 4710/32.5 (3.8 %) | 5190/35.8 (1.0 %) | 4400/30.4 (3.2 %) | 4740/32.7 (3.7 %) |
| 7 d @ 23°C | 7240/49.9 (0.7 %) | 7580/52.2 (3.2 %) | 7260/50.1 (2.6 %) | 8050/55.5 (3.0 %) | 9040/62.3 (6.8 %) | 8800/60.7 (2.0 %) | 8270/57.0 (1.2 %) | 8750/60.4 (0.4 %) | 7300/50.3 (2.1 %) | 7300/50.3 (1.7 %) |
| 1 d @ 10°C | 1430/9.9 (11.0 %) | 1780/12.3 (0.1 %) | 2530/17.4 (1.7 %) | 2210/15.3 (1.1 %) | 2620/18.0 (1.2 %) | 2530/17.3 (0.5 %) | 2060/14.2 (0.8 %) | |||
| 7 d @ 10°C | 7400/51.0 (1.6 %) | 7660/52.8 (2.4 %) | 7590/52.3 (2.2 %) | 8040/55.4 (2.8 %) | 7610/52.5 (3.4 %) | 9200/63.4 (1.5 %) | 7450/51.4 (3.9 %) |
g
Number in parentheses indicates coefficient of variation for testing three specimens for each mortar mixture.