A series of detailed small-scale tests have been made to investigate the use of short delays
to promote better fragmentation caused by shock wave interactions. The block design had a …

The capacity of 17 functions to represent the size distribution of fragmented rock is assessed
on 1234 data sets of screened fragments from blasted and crushed rock of different origins …

It is shown that blast fragmentation data in the form of sets of percentile fragment sizes, x P,
as function of specific charge (powder factor, q) often form a set of straight lines in a log (x P) …

Due to the complexity of multi-hole blasting rounds, single-hole blasting has often been
used in order to understand the fragmentation mechanisms. This paper reviews and …

Previous studies on blast fumes (carbon monoxide and nitrogen dioxide) clearance and
workplace reentry time have overlooked the effects of toxic gases trapped in the muck pile …

This work summarizes recent research at Swebrec and SveBeFo. It has led to a new
fragment size distribution with an unexpected ability to reproduce sieving curves of all kinds …

Design of sub-level blasting rounds and optimisation has become more important now when
the sizes of the blasting rings get larger. Sufficient fragmentation is one of the key factors …

Blast-induced fines in rock negatively influence multiple aspects of raw-mineral
sustainability. The Austrian Science Fund (FWF) sponsored a project to investigate the …

Experimental and theoretical papers on the origin of fines in rock blasting are reviewed
against tests made at Montanuniversitaet Leoben and Swebrec, the Swedish Blasting …

This paper investigates the blast fragmentation of a mortar cylinder by numerical
simulations. The aim of the project is to understand the underlying mechanisms causing …