Evaluation of blast fragmentation and its benefits: a review of the paradigm and ambiguity
by Shaib Abdulazeez Shehu; Mohd Hazizan Mohd Hashim
International Journal of Mining and Mineral Engineering (IJMME), Vol. 11, No. 4, 2020

Abstract: Wrong blasting can lead to various degrees of inefficiencies in the subsequent mining processes. It is therefore necessary to constantly evaluate blast results and optimise the process. Good blasting provides cheaper benefits when compared to crushing and grinding. Good blast may be expensive but its technical and economic benefits override such an intensive cost. Blast benefits are based on the size distribution of muckpile and the degree of induced microcracks. The size distribution can be visually accessed qualitatively as either good or poor, and quantitatively by screening or different image analysis techniques. However, screening is the only direct and most accurate method of evaluating fragmentation but not suitable for large projects. Though the microcracks can be seen with a specialised microscope but can only be assessed systematically through the study of production output and energy consumption. This paper reviews the benefits, paradigm and the ambiguity of evaluating blast fragmentation.

Online publication date: Mon, 21-Dec-2020

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Mining and Mineral Engineering (IJMME):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com