| 摘要 |
<p>A method of charging a blast hole by inserting predetermined amounts of highly absorbent material and explosive material into the blast hole. The highly absorbent material can be inserted separately from the explosive material, or it can be mixed with the explosive material. The highly absorbent material can be a super-absorbent polymer in a powdered, granular, flake or fibrous form. The explosive material can be Ammonium Nitrate Fuel Oil (ANFO). The method allows ANFO to be used in wet blast holes. A blasting charge comprising predetermined amounts of highly absorbent material and explosive material is also claimed.</p> |
