Motty

A ball of clay moulded and compressed to approximately 25mm in diameter, which is formed from a clay loam. It is dried, shrinks to about 20mm in diameter, and then broken to measure its binding strength in kilograms. More formally it is called the Adams and Stewart Soil Binding (ASSB) test after its inventors. A good binding strength for a cricket loam will typically be from 55kg for good club pitches and better; whilst for tennis courts this will be greater than 35kg.