Quick Links, Road Bases
DGB20 Roadbase
pdf_buttonProduct Code RBU100
(Conforms to RTA Specification 3051)

Blast furnace slag is the non-metallic product consisting essentially of silicates and aluminosilicates of calcium and other bases that is 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. Basalt is a fine-grained volcanic rock type.

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DESCRIPTION
Air-cooled slag is dug, crushed, screened and mechanically blended with basalt fines to form DGB20 Slag/Basalt Roadbase. The fine aggregate portion is predominantly basalt fines.


APPLICATIONS
  • High quality (flexible) roadbase conforming to RTA Specification 3051

ADVANTAGES
  • Interlocking particle shape
  • Ease of compaction
  • Lower tonnage required per cubic
    metre
  • Effective utilisation of an industrial byproduct conserving natural resources

TYPICAL GRADING
SIEVE % PASSING
26.5 mm 100
19.0 mm
95-100
13.2 mm
70-90
6.7 mm 50-70
2.36 mm 30-55

TYPICAL PHYSICAL PROPERTIES
Attribute
Typical
RTA 3051
Maximum Dry Density   2.0-2.1 t/m3
 
Optimum Moisture
  10-11%  
Misshapen Particles (2:1)   5-15% 35% max
Dry Strength   100-130 kN  
Wet Strength   85-115 kN 70kN min
Wet/Dry Variation   5-20% 35% max
Fine Particles Size Distribution A Ratio 40-50% 35-55%
  B Ratio 45-55% 35-55%
  C Ratio 40-50% 35-60%
Liquid Limit   n/a 20% max
Plastic Limit   n/a 20% max
Plasticity Index   non-plastic 6 max
Dry Compressive Strength   4-5 MPa 1.7 min

 

PDS-RBU100 : Rev 5 : 16/03/10

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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
 
 
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