硅灰石以其无毒、无味、无放射性优点，能够取代对人体健康有害的石棉。经过特殊加工工艺后仍能保持其独特的针状结构，使添加了硅灰石针状粉的硅钙板、防火板、纤维水泥板、硫酸钙板等新型环保建筑材料的抗冲击性、抗弯折强度、耐磨强度、防腐蚀、隔热防火性能均大大提高。还可用于白水泥、建筑腻子等方面
ACICULAR POWDER FOR CONSTRUCTION
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GRADE :XYNFW-XA |
F-50 F-60 F-65 F-70 |
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Chemical Compostion: CaSiO3 |
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CaO |
43-46% |
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SiO2 |
48-53% |
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Fe2O3 |
≤0.35% |
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Al2O3 |
≤0.4% |
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MgO |
≤2.0% |
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TiO2 |
≤0.02% |
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S |
≤0.02% |
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P |
≤0.007% |
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L.O.I (10500℃) |
≤3.5% |
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Sedimentation（ml/30g） |
45-55 |
56-60 |
60-65 |
65-70 |
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Aspect Ratio(L/D) |
10-15 |
15-18 |
18-20 |
20-25 |
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Bulk（Tapped） |
0.6-0.7 |
0.4-0.5 |
0.4-0.5 |
0.4-0.5 |
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Physical Properties： |
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Appearance |
white |
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Form |
Acicular |
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Mol.wt. |
116 |
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Refraction |
1.63 |
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PH |
8.9-9.7 |
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Hardness (Moths) |
4.5-5.5 |
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Expansion Coefficient (mm/mm/'c) |
6.5×10-6
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Melting Port (0'C) |
1450 |
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898995850
