Research conducted by the engineering department of Cardiff University in the UK has proved high quality sand can be produced from surplus crusher dust and used as a replacement for natural sand.
The department manufactured sands from crusher dusts with at least four gradings from each quarry, including basalt, granite, sandstone and limestone.
According to the research, all artificial sands, regardless of original material, are able to produce similar particle size distribution, making sand produced from crusher dust a more environmentally friendly option for construction that traditional sand.
The research also yielded some workable concretes that required a higher water to cement ratio than traditional aggregates.
Growing stockpiles of waste crusher dust in quarries is a substantial environmental concern for those in the industry.