Specimen number | Sand:Cement: gypsum | Polycarboxylic acid dosage | Water consumption | Compressive strength/MPa |
A | 5:2:9 | Quality of cementitious material 1% | 20% | 3.10 |
B | 6:4:6 | Quality of cementitious material 1% | 25% | 6.08 |
C | 3:4:4 | Quality of cementitious material 1% | 28% | 9.02 |