Improved Fragmentation Results in Higher Productivity for Newcrest BLASTING 150M UP-HOLES TO IMPROVE INITIAL CAVING DYNAMICS When Newcrest approached Dyno Nobel with the idea of blasting a 150m long vertical up-hole, the enormity of the project was quickly realised. Conventional loading techniques and products were not suitable for such an undertaking. So a period of design and innovation ensued. During this development perio

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