Ceramsite sand has the following advantageous chemical and physical properties:Uniform component composition;
Stable grain size distribution and air permeability;
High refractoriness (SK37, 1825°C);
High resistance to wear, crush and thermal shock;
Little thermal expansion;
Excellent fluidity and filling efficiency owing to being spherical;
Particle Size Distribution for Foundry Sand Application | |||||||||||
Fineness | AFS15 | AFS25 | AFS30 | AFS40 | AFS50 | AFS60 | AFS75 | AFS85 | AFS100 | AFS120 | |
Mesh | μM | (13-17) | (20-30) | (25-35) | (35-45) | (45-55) | (55-65) | (70-80) | (80-90) | (90-110) | (110-130) |
14 | 1180 | 0-20 | 0-2 | 0-2 | --- | --- | --- | --- | --- | --- | --- |
18 | 850 | 50-70 | 0-10 | 0-10 | --- | --- | --- | --- | --- | --- | --- |
26 | 600 | 20-40 | 30-50 | 20-40 | 0-5 | 0-2 | 0-1 | --- | --- | --- | --- |
36 | 425 | 0-2 | 30-50 | 40-60 | 30-50 | 10-30 | 0-10 | 0-1 | --- | --- | --- |
50 | 300 | --- | 0-5 | 0-20 | 35-55 | 15-35 | 10-30 | 0-10 | <=0.3 | --- | --- |
70 | 212 | --- | --- | 0-5 | 0-20 | 20-40 | 25-45 | 5-25 | 5-25 | 0-3 | --- |
100 | 150 | --- | --- | 0-2 | 0-10 | 0-20 | 15-35 | 25-45 | 25-45 | 10-25 | 0-10 |
140 | 106 | --- | --- | --- | 0-5 | 0-10 | 0-20 | 20-40 | 25-45 | 40-60 | 30-50 |
200 | 75 | --- | --- | --- | --- | 0-2 | 0-5 | 0-10 | 5-20 | 10-20 | 40-60 |
281 | 63 | --- | --- | --- | --- | --- | --- | 0-5 | 1-3 | 0-10 | 0-15 |
Pan | Pan | --- | --- | --- | --- | --- | --- | <=0.5 | <=0.3 | 0-2 | 0-3 |