|
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
|