|
Parameters
|
SPG-02
|
SPG-10
|
SPG-18
|
|---|---|---|---|
|
Clay content fraction of total mass, %
|
2-4
|
8-12
|
13-18
|
|
Uniformity coefficient, %
|
50-60
|
50-60
|
50-60
|
|
Average grain size, mm
|
0,19-0,22
|
0,19-0,22
|
0,19-0,22
|
|
Gas permeability at optimum humidity, units, minimum
|
90
|
60
|
50
|
|
Wet compressive strength, MPa, minimum
|
0,0075
|
0,015
|
0,05
|
|
Silicon dioxide content, %, minimum
|
96
|
96
|
96
|
|
Harmful impurities content, alkali-earth and alkali-metal oxides content, %,not more
|
1,8
|
1,8
|
1,8
|
|
Loss on ignition, %
|
1,0
|
1,0
|
1,0
|
Application: in foundry as mortar for moulds and cores and as ramming mixture for pouring ladles and mold castings.
SPG-02: production of building materials (concrete, mortar) and for building works of any nature.