NT-A0230 – Micro-Deval Test Apparatus

Reference :
- NT-A0230 Micro-Deval Test Apparatus
General description
The NT-A0230 Micro-Deval Test Apparatus is a laboratory testing device designed to determine the resistance to wear of aggregates sized between 25 and 50 mm. The test is performed in accordance with international standards to assess the durability of materials used in applications such as road construction and railway ballast.
Principle and operation
The apparatus simulates aggregate wear by abrasion in a wet environment inside rotating drums. It can operate with:
- 4 drums of Ø200 × 154 mm
- or 2 drums of Ø200 × 400 mm
The rotation speed is set to 100 ± 5 rpm. The unit is equipped with a user-adjustable digital revolution counter and automatically stops at the end of the test cycle.