Modified 80/20 Slag Roadbase


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Product Code RBM800

ASMS RBM800 is a high quality heavily bound roadbase.


APPLICATIONS

RBM800 is used in a variety of rigid pavement applications.


COMPOSITION AND MATERIALS

RBM800 is a blend of graded air-cooled blast furnace slag and granulated blast furnace slag in nominally 80/20 volumetric proportions modified with a slag cement/lime binder.

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 tonnages 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 74-90
6.7 mm59-69
2.36 mm 38-46
 425 um11-17
75 um 1-5


TYPICAL PHYSICAL PROPERTIES

PROPERTY  UNITTYPICAL 
Maximum Dry Density  t/m3  2.0-2.2
Optimum Moisture  % 11-13
 Misshapen Particles (2:1)  % <10
Misshapen Particles (3:1)  % <2
Dry Strength   kN 90-110
Wet Strength   kN70-90 
 Wet/Dry Variation  % 5-15
Acid soluble sulfate as SO3   % 0.3-0.6
 Liquid Limit % n/a
 Plastic Limit % n/a
Plasticity Index  - Non Plastic
 Modified Texas Triaxial  - <2.5
Apparent Cohesion   kPa>55 
 UCS (7 days acc.)  MPa >2.0



TECHNICAL SERVICES AND CUSTOMER ENQUIRIES 

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


Telephone: 02 4255 1125 
Email: enquiries@asms.com.au