The Clegg Impact Tester, also known as the Clegg Hammer, is used to measure and control the strength of soils, aggregates, and synthetic materials for sports surfaces and roads.
The Clegg Impact Tester consists of a 2.25 kg hammer, a tube that guides the hammer, and an accelerometer mounted on the hammer. The guide tube is metal, making it durable.
The 2.25 hammer is used for testing sports surfaces. Other hammers are also available for other surfaces, including the 4.5 kg hammer, which is popular for testing road surfaces. Other versions, including a 10 kg and 20 kg hammer, are also available for testing harder materials, such as aggregate roadbeds, trench reinstatement, flexible pavements, and bell holes.
ConductScience offers the Clegg Impact Tester.