Random triples
| Subject | Object |
|---|---|
| gptkb:GOST_50963-96,_class_3 | class 3 |
| gptkb:Calcium_Aluminate_Cement | High |
| gptkb:HAC_(High_Alumina_Cement) | high early strength |
| gptkb:Portland_Cement | ~20-50 MPa (28 days) |
| gptkb:Portland_cement | high |
| gptkb:Ordinary_Portland_Cement | 28-day: 33-53 MPa |