80/20 Slag Roadbase


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Product Code RBU800

ASMS RBU800 is a high quality self cementing roadbase.A


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APPLICATIONS

RBU800 is used in a variety of rigid pavement applications requiring slow setting characteristics.


COMPOSITION AND MATERIALS

RBU800 is a blend of graded air-cooled blast furnace slag and granulated blast furnace slag in nominally 80/20 volumetric proportions.

Blast furnace slag is the non-metallic product consisting essentially of silicates and aluminosilicates of calcium and other bases developed in a molten condition simultaneously with iron in a blast furnace.

Air-cooled blast furnace slag is a predominantly crystalline, solid rock-like material. Granulated blast furnace slag is a glassy, granular product.


ADVANTAGES

  • Inherent cementitious properties
  • Interlocking particle shape
  • Ease of compaction
  • Advantageous placement working life
  • Long term strength gain
  • Lower tonnage required per cubic metre
  • Potential to reduce asphalt layer thickness in selected applications
  • Effective utilisation of an industrial byproduct conserving natural resources

TYPICAL GRADING

SIEVE   % PASSING
26.5 mm100 
19.0 mm 95-100
13.2 mm 75-90
 6.7 mm 60-70
 2.36 mm 40-50
 425 um 10-20
 75 um 1-5


TYPICAL PHYSICAL PROPERTIES

PROPERTY  UNIT TYPICAL
 Maximum Dry Density  t/m3  2.0-2.2
Optimum Moisture  % 11-13
Misshapen Particles   % 5-15
Dry Strength  kN  90-110
 Wet Strength  kN70-90
 Wet/Dry Variation  %5-15
 Acid Soluble Sulphate, SO3  % 0.3-0.6
Liquid Limit   %n/a
Plastic Limit   % n/a
 Plasticity Index  -Non Plastic
Modified Texas Triaxial   - 2.0-2.5
 UCS (7 days acc.) MPa 0.5-1.5


TECHNICAL SERVICES AND CUSTOMER ENQUIRIES 

Marketing Department 
Australian Steel Mill Services Pty 
21 Processing Area 
Springhill Road PORT KEMBLA NSW 2505 

Telephone: 02 4255 1125 
Facsimile: 02 4276 2369