Large Diameter Cartridged Explosives

The Explosives Division of GULF OIL Corporation Ltd. manufactures a complete range of Large Diameter Cartridged Explosives for use in opencast mining, quarrying, civil construction, and for large hole stoping
in underground metal mines.

Based on their sensitivity and strength, four large diameter cartridged explosive products are available:

• Aquadyne
  
  
• Toeblast
  
  
• Energel
  
  
• Supergel

These explosives have excellent borehole coupling, achieving high loading density and result in maximum energy transfer in the borehole. They also offer high degree of safety from mechanical impact and friction. They have excellent water resistance and upon detonation, generate low levels of noxious fumes.

Product Range

Aquadyne is a medium strength cap-sensitive aluminised gelled slurry explosive for use in large diameter holes as primer / booster. It effectively initiates booster-sensitive explosive. Its excellent slumping characteristics ensures good loading density and borehole coupling. Its density and gel consistency ensures fast sinking in water filled drillholes. Aquadyne can be initiated either with a detonator or detonating cord. It is recommended for use in soft to medium hard rocks.drillholes.

Aquadyne can be initiated either with a detonator or detonating cord. It is recommended for use in soft to medium hard rocks.

Toeblast is a high strength, cap-sensitive, aluminised gelled slurry explosive for use in large diameter holes as primer / booster. It has a high aluminum content, resulting in increased energy. It effectively initiates booster-sensitive explosives and its excellent slumping
characteristics ensure good loading density and borehole coupling. Its density and gel consistency ensures fast sinking in water filled holes. Toeblast can be initiated either with a detonator or detonating cord. It is recommended for use in hard to very hard rocks. It effectively removes hard toe.

Energel is a low strength, non-aluminsed boostersensitive gelled slurry explosive. Its excellent slumping characteristics ensures good loading density and borehole coupling. Its gel consistency ensures fast sinking in water filled holes. For initiation, Energel has to be primed with either Aquadyne or Toeblast of the same cartridge diameter or Pentolite Booster. A column charge of Energel forms an excellent combination with Supergel as bottom charge, particularly for medium hard to hard rock formations.

Supergel is a high strength, aluminised boostersensitive gelled slurry explosive. Its excellent slumping characteristics ensure good loading density and borehole coupling. Its gel consistency ensures fast
sinking in water filled holes. For initiation, Supergel has to be primed with either Aquadyne or Toeblast of the same cartridge diameter or Pentolite Booster. A bottom charge of Supergel with Toeblast as booster is an excellent combination particularly for hard rock formations. Can also be used in combination with Energel as a column charge. It effectively removes hard toe.

Application

Large diameter cartridged explosives are widely used in opencast mining, quarrying and for use in soft to very hard strata. Due to its sticking properties and ease of cutting, the cap-sensitive primers Aquadyne and Toeblast are commonly used for secondary blasting using plaster shooting method.

These products can also be safely used in ‘hot boreholes’ by following recommended statutory precautions.

Specifications

Packaging

Cartridge diameter and weight of Aquadyne, Toeblast, Supergel, and Energel are given below:

* Available on special request

Cartridges are packed in corrugated fiber board cases. Each case contains 25 kg of explosive. Markings on the case indicate manufacturer’s name, product name, cartridge diameter, cartridge weight, batch number, case number, date of manufacture, net weight and gross weight.

Statutory Classification and Shipping Information

Precautions

• Do NOT subject explosive material to impact, friction or fire.
  
  
• Do NOT carry out charging of explosives during an approaching storm or when there is lightning activity in the blast area. Vacate the blast area and resume operations only after the storm has passed.
  
  
• Do NOT attempt to fight explosive fires.

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See Also:

All Explosives Division Products

All Gulf Products