Development of ultra-deep hole double pipe directional drilling rig for northern traffic soft coal seam

SiO2

Al2O3

Fe2O3

TiO2

CaO

Na2O

K2O

MgO

52.00±1

45.00±1

≤0.50

≤0.80

≤0.50

≤0.20

≤0.10

≤0.20

hysical Form

ISO Brightness (%)

Screen Residue, 325 Mesh (%)

0.005 max

Free Moisture @ 105 deg C (%) as produced

pH (28% solids)

Specific Gravity (g/cm3)

2.63

Sedigraph Particle Size (%<2μm)

Oil Absorption (g/100g )

63-68

Bulk Density (kg/m3)

400

Hegman