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Fill Sand (Unscreened)

pdf_buttonProduct Code GBF007
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.

Granulated blast furnace (GBF) slag is a glassy, granular material.
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PROCESS
Molten slag is passed through high volume water sprays, breaking the slag stream up into small droplets and cooling them so quickly that crystallisation is suppressed. Granulated slag requires no further processing for use as Fill Sand.

DESCRIPTION
Granulate Fill Sand is a coarse sand-like material with a porous, amorphous structure and ranging from white to golden brown in colour. Because the material is cementitious, it usually consists of lumps of up to boulder size.


APPLICATIONS

Civil works projects including:

  • General Fill
  • Enbankment binder
  • Select granular fill

ADVANTAGES
  • Cementitious properties
  • Interlocking particle shape
  • Resistant to weathering
  • Non-corrosive
  • Low chloride content
  • Completly non-plastic
  • Dependable quality
  • Lower unit weight
  • Lower transport costs

ADVANTAGES IN CIVIL WORKS
  • Excellent load bearing capacity
  • High stability
  • High durability
  • Ease of compaction
  • Little of no post-construction consolidation
  • Prevents existent of acid conditions
  • Lower tonnages required

ENVIRONMENTAL VALUE
  • Effective utilisation of an industrial by-product
  • Conserves natural resources and preserves natural landscape
  • Reduces the need for landfill sites
  • Reduces energy consumption

PDS-GBF007 : Rev 1 : 01/06/96 		 
CHEMICAL PROPERTIES
Blast furnace slag is composed of silicates and aluminosilicates, but for ease of reporting oxide equivalents are used and fall within the relatively narrow limits given below:

CONSTITUENT SYMBOL %
Iron Oxide FeO <1.3%
Calcium Oxide CaO 38 - 43
Silicon Dioxide SiO2 32 - 37
Aluminium Oxide Al2O3 13 - 16
Magnesium Oxide MgO 5 - 8
Titanium Dioxide TiO2 <1.5
Manganese Oxide MnO <1.0
Potassium Oxide K2O <1.0
Sulphur S <1.0
Sodium Oxide Na2O <0.5
Chloride Ion Cl <250 ppm
Suplhates
 SO4 <200 ppm


TYPICAL GRADING
The grading of Fill Sand varies with the age and therefore degree of set-up of the material. However, for indication purposes the grading of Fill Sand with the lumps excluded is as shown below:
SIEVE % PASSING
4.75mm
 100
2.36mm
 97-100
1.18mm
 70-85
600um
 30-45
425um
 15-25
300um
 8-14
150um
 3-7
75um
 1-3
45um
 0-2


TYPICAL PHYSICAL PROPERTIES
Maximum Dry Density
 (Standard)
1.35 - 1.45 t/m3
Optimum Moisture Content
  25 - 35%
Bulk Density
 (Loose) 0.85 - 1.05 t/m3
  (Compacted)
 0.95 - 1.15 t/m3
Material Finer than 75um
<2%
Sodium Sulphate Soundness   <2%
Liquid Limit
   Not obtainable
Plastic Limit
   Not obtainable
Plasticity Index
   Non-plastic
Linear Shrinkage
   0%
Organic Impurities   Free
Sugar
   Free
Resistivity
   >3000 ohm-cm
pH
   10 - 12
Glass Content
   >95%
Friction Angle
   Approx. 45°
Angle of Repose
   Approx. 35°
Compacted Long Term Strength
   4-6 MPa

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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

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Facsimile: 02 4276 2369
 
 
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