| 
				
				检验项目 | 
				
				技术指标 | ||||
| 
				
				SF96 | 
				
				SF93 | 
				
				SF90 | 
				
				SF88 | 
				
				SF85 | |
| 
				
				SiO2/%                       
				≥ | 
				
				96.0 | 
				
				93.0 | 
				
				90.0 | 
				
				88.0 | 
				
				85.0 | 
| 
				
				Al2O3/%                      
				≤ | 
				
				1.0 | 
				
				1.0 | 
				
				1.5 | 
				
				— | |
| 
				
				Fe2O3/%                      
				≤ | 
				
				1.0 | 
				
				1.0 | 
				
				2.0 | 
				
				— | 
				
				— | 
| 
				
				CaO+MgO/%                    ≤ | 
				
				1.0 | 
				
				1.5 | 
				
				2.0 | 
				
				— | 
				
				— | 
| 
				
				K2O+Na2O/%                  ≤ | 
				
				1.0 | 
				
				1.5 | 
				
				2.0 | 
				
				— | 
				
				— | 
| 
				
				C/%                         ≤ | 
				
				1.0 | 
				
				2.0 | 
				
				2.0 | 
				
				2.5 | 
				
				2.5 | 
| 
				
				Clˉ/%                       ≤ | 
				
				0.1 | 
				
				0.1 | 
				
				0.1 | 
				
				0.2 | 
				
				0.3 | 
| 
				
				pH值                          | 
				
				4.5-7.5 | 
				
				4.0-8.5 | 
				
				4.0-8.5 | 
				
				4.0-8.5 | 
				
				— | 
| 
				
				灼烧减量/%                   ≤ | 
				
				1.0 | 
				
				3.0 | 
				
				3.0 | 
				
				4.0 | 
				
				6.0 | 
| 
				
				水分/%                       ≤ | 
				
				1.0 | 
				
				2.0 | 
				
				2.5 | 
				
				3.0 | 
				
				3.0 | 
| 
				
				比表面积/(㎡/g)              
				≥ | 
				
				15 | ||||
| 
				
				2.0 | 
				
				3.0 | 
				
				3.0 | 
				
				5.0 | 
				
				10.0 | |
| 
				
				火山灰活性指数(28d)/%       ≥ | 
				
				85 | ||||
| 
				
				需水量比/%                   ≤ | 
				
				125 | 
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