2. 化学成份
|
成份 Composition |
含量 % content |
|
SiO2 |
50-70％ |
|
Al2O3 |
15-25％ |
|
Fe2O3 |
0.5-10％ |
|
CaO |
1-5％ |
|
MgO |
1-5％ |
|
KO2+NaO |
3-8％ |
|
其它 The balance |
≤ 2 |
|
项目 Item |
指标 Index |
|
外观 Appearance |
近似球形，表面粗糙，红褐色 Rough ball, prorus, red & brown |
|
粒径 Grain diameter，mm |
0.5-30 |
|
视密度 Apparent Density,g/cm3 |
1.2-1.6 |
|
堆密度 Bulk density,g/cm3 |
0.6-1.2 |
|
总孔隙率 Total porosity,% |
60-80 |
|
比表面积 Specific surface area,cm2/g |
5000-10000 |
|
磨损破碎率 Attrition & crushing rate,% |
≤2 |
|
不均匀系数 Even coefficient |
K80=1.2-1.5 |
|
均匀系数 Even coefficient |
K80=1.0-1.3 |
|
酸可溶率 Solubility in acid,% |
≤2 |
|
碱可溶率 Solubility in alkali,% |
≤1.5 |
|
溶出物 Soluble substance |
不含对人体有害的元素 No and harmful elements contained |
