|   编号  |       胶凝材料用量/kg  |       水胶比  |       砂率/%  |       流动性  |    |
|   坍落度/mm  |       扩展度/mm  |    ||||
|   7-1  |       452.96  |       0.39  |       40  |       185  |       420  |    
|   7-2  |       452.96  |       0.39  |       45  |       210  |       485  |    
|   7-3  |       452.96  |       0.39  |       47  |       255  |       520  |    
|   7-4  |       452.96  |       0.39  |       48  |       250  |       515  |    
|   7-5  |       452.96  |       0.39  |       50  |       265  |       525  |