Sr.No |
Characteristics |
BS EN 450 S |
ASTM C-618 Class F |
IS 3812 Grade 1 |
RT-Ultrafine |
RT-20 |
RT-30 |
1 |
Silicon Dioxide (SiO2) + Aluminum Oxide (Al2O3) + Iron (Fe2O3) Min % |
70.00 |
70.00 |
70.00 |
93.00 |
93.00 |
94.16 |
2 |
Silicon Dioxide (SiO2) by % mass Min |
– |
– |
35.00 |
60.96 |
60.96 |
62.66 |
3 |
Magnesium Oxide (MgO) Max % |
4.0 |
– |
5.0 |
0.60 |
0.60 |
0.80 |
4 |
Sulphur Trioxide (SO3), Max % |
2.50 |
5.0 |
2.75 |
0.05 |
0.05 |
0.09 |
5 |
Moisture Content Max % |
0.50 |
3.00 |
– |
– |
– |
– |
6 |
Loss On Ignition, Max % |
7.00 |
6.00 |
6.00 |
0.35 |
0.35 |
0.04 |
7 |
Available Alkalies as Sodium Oxide (Na2O), Max % |
– |
1.50 |
1.50 |
0.13 |
0.13 |
0.11 |
8 |
Fineness % retained on 45 Micron in wet-sieving, Max % |
12 |
34 |
34 |
– |
<10 |
<30 |