Sanyuan Microsilica Standard

NO

ITEM

STANDARD

1

Silicon Dioxide(Sio2)amorphous(%)

>85%

2

Moisture(%)

<=1.5%

3

Loss on lgnition(LOl%)

<=3%

4

Al2O3(%)

0.45%

5

Fe2O3(%)

0.5%

6

MgO(%)

1%

7

K2O

0.85%

8

C(%)

1.8%

9

Available alkalis(Na2O equibalent,%)

0.65%

10

CL(5)

0.09%

11

Water requirement ratio(%)

<=115%

12

Retained on 45micron sieve(%)

<=8%

13

Specific surface(m2/gram)

15-27m2/g

14

Bulk Density

200-650KG/M3

15

Pozzolanic Activity Index(%)

105%@7D

87%@28D