Table 5 Mix code and their description for HCB samples.
Mix code | PPC (%) | Crusher dust (%) | Test days | Number of samples | Remark | ||
|---|---|---|---|---|---|---|---|
Class A | |||||||
 A0 | 100 | 0 | 3 | 7 | 28 | 18 | Control mix |
 A10 | 90 | 10 | 3 | 7 | 28 | 18 | Experimental mixes |
 A20 | 80 | 20 | 3 | 7 | 28 | 18 | |
 A30 | 70 | 30 | 3 | 7 | 28 | 18 | |
 A40 | 60 | 40 | 3 | 7 | 28 | 18 | |
Class B | |||||||
 B0 | 100 | 0 | 3 | 7 | 28 | 18 | Control mix |
 B10 | 90 | 10 | 3 | 7 | 28 | 18 | Experimental mixes |
 B20 | 80 | 20 | 3 | 7 | 28 | 18 | |
 B30 | 70 | 30 | 3 | 7 | 28 | 18 | |
 B40 | 60 | 40 | 3 | 7 | 28 | 18 | |
Class C | |||||||
 C0 | 100 | 0 | 3 | 7 | 28 | 18 | Control mix |
 C10 | 90 | 10 | 3 | 7 | 28 | 18 | Experimental mixes |
 C20 | 80 | 20 | 3 | 7 | 28 | 18 | |
 C30 | 70 | 30 | 3 | 7 | 28 | 18 | |
 C40 | 60 | 40 | 3 | 7 | 28 | 18 | |
Total samples | 270 | Â | |||||