Table 3.
Experimental outline.
| Series | Type | Factor | CSA Rate of OPC (%) | Curing Temperature (°C) |
Chemical Admixture | Evaluation Item |
|---|---|---|---|---|---|---|
| Ⅰ | Mortar | Replacement ratio of CSA | 0, 13, 14, 15, 16, 17, 18 |
20 | - | Setting time (h) Compressive strength -12 h, 24 h |
| Accelerator | 17 | 20 | NS, AS, CH, CN, NC (B × 0.5%) |
Setting time (h) Compressive strength -12 h, 24 h, 72 h |
||
| Retarder | 17 | 20 | CA, SG, BA, TA (B × 0.2%) |
|||
| Accelerator + Retarder | 17 | 20 | NS (B × 1%, 2%, 3%) CA (B × 0.2%) |
|||
| Ⅱ | Concrete | Application (Batch plant + Mock up member) |
17 | Outdoor Air Chamber (13) Room temp(20) |
AD+ NS + CA (B × 3.2) |
Slump Compressive strength-12 h, 24 h, 72 h 7 D, 28 D-Mock up member: 12 h, 24 h, 72 h |