Raw materials are the most crucial part of making quality bricks. Consistent, high quality raw materials combined with sound processes normally result in good quality fired ware. Unfortunately, in the real world, raw materials vary in quality and consistency. Variations in raw materials such as particle size, fired color, carbon content, and shrinkage are routinely measured during exploration, mining, stockpiling, and production. Another characteristic of raw materials that is critical and should be measured and monitored is the level of soluble sulfates present in the raw materials used to make brick.
Having a less fragile clay body after the tile is pressed is not only down to buying expensive high plasticity clay. There are workarounds to increase the Ceramic Green Strength without emptying your pockets. Read on to find a solution that fits your production.