On the fly - fly ash can replace aggregates

Dr Robert Carroll from the UK Quality Ash Association explains the vital role of fly ash in a period where raw aggregates are becoming increasingly rare.

Balancing act - balancing mineral oxides in kaolin clay

Scott Fess, Product Manager at Applied Rigaku Technologies in Texas, USA, explains the importance of balancing mineral oxides in kaolin clay.

Material of the month - Silica aerogel

Maria Felice examines the extraordinary properties of aerogels.

Spotlight: Improved oven technology pushes advances in heat treatment

The effectiveness of heat treatment is directly linked to the effectiveness of the oven used. Rachel Lawler looks at some of the improved products available.

Refractory ores - Russian gold mining technology

Michael Forrest talks to Peter Hambro about the technological changes required to maintain production in Russia’s gold mines.