Does ANFO need a booster?

A large booster is not necessary to initiate ANFO, regardless of the size of the ANFO charge; the only advantage to a larger booster is that the mass of ANFO achieves its ultimate detonation velocity sooner, with a resulting increase in explosive yield.

What will detonate ANFO?

The fuel component of ANFO is typically diesel, but kerosene, coal dust, racing fuel, or even molasses have been used instead. Finely powdered aluminium in the mixture will sensitise it to detonate more readily.

What is ANFO emulsion?

ANFO is a free flowing mixture of porous prilled Ammonium Nitrate and Fuel Oil, formulated to be oxygen balanced for use in dry blast holes.

Why is ANFO used in mining?

ANFO is suitable for use where the blastholes are dry and will remain dry until firing. ANFO can be used as a column charge in mining or quarrying and for general blasting work. ANFO loads easily and completely fills the blasthole, delivering maximum energy.

Why is ANFO explosive?

ANFO provides excellent heave energy compared with explosives that contain a high emulsion content. ANFO is a dry and free flowing product, allowing delivery by loose pour or pneumatic loading. The low bulk density of ANFO provides excellent charge distribution in the blast hole.

How does ANFO bomb work?

This is because when ammonium nitrate burns, some oxygen is left over. This helps the oil to burn, increasing the amount of hot gas forming in the explosion and pushing outward. The commercial form of explosive uses ammonium nitrate and fuel oil, a combination known in the industry as ANFO.