Nordic Abrasion Machine is designed to determine the resistance of coarse aggregates to wear caused by studded tyres. During the test, aggregate samples are rotated together with water and steel abrasive balls inside a stainless steel drum. The machine operates at 90 ±3 r.p.m., while three internal mixing ribs provide uniform movement of the aggregate and abrasive charge. It is suitable for natural and artificial aggregates in the 11.2–16.0 mm size fraction.
- Nordic Abrasion Test: Simulates the abrasive action caused by studded tyres on road aggregates.
- Aggregate Size Range: Suitable for 11.2–16.0 mm coarse aggregates.
- Controlled Drum Speed: Operates at 90 ±3 r.p.m.
- Stainless Steel Drum: Provides durable resistance against water and abrasion.
- Three Internal Ribs: Ensure uniform mixing of aggregates and steel balls.
- Wet Test Method: Aggregate is tested together with water and abrasive steel balls.
- Automatic Test Control: Electronic control unit manages the required test cycle.
- Abrasive Steel Balls: Ø11.1 mm, 3.5 kg steel balls are ordered separately.
- Drum Capacity: 35 litres.
- Product Code: LT-A1071.
- Standard: EN 1097-9 Nordic abrasion test method.
| Product Code | Product Name | Capacity | Dimensions (cm) | Drum Speed (r.p.m.) | Weight (kg) | Power Supply |
| LT-A1071 | Nordic Abrasion Machine | 35 L | 154 × 80 × 130 | 90 | 150 | 220 V, 50–60 Hz, 1 ph |
LT_NORDİKAŞINDIRMA
What Is a Nordic Abrasion Machine?
The Nordic Abrasion Machine is used to determine the resistance of coarse aggregates to wear caused by the abrasive action of studded tyres. The method is particularly relevant for aggregates intended for road surface applications where repeated tyre contact can produce significant wear.
During the test, the aggregate sample is placed inside a rotating drum together with water and steel abrasive balls. The combined action of rotation, water and steel balls produces a controlled abrasion effect on the aggregate particles.
EN 1097-9:2014 defines the Nordic test as the reference method for determining the resistance of coarse aggregates to wear caused by studded tyres. The standard applies primarily to the 11.2–16.0 mm size fraction. An alternative 8–11.2 mm fraction is also described for specific applications.
Controlled Stainless Steel Drum
The machine incorporates a rolled stainless steel drum with an internal diameter of 206.5 mm, an internal length of 335 mm and a wall thickness of 6 mm.
The drum rotates at 90 ±3 r.p.m. Three internal ribs help distribute the aggregate and abrasive balls uniformly during rotation. This arrangement supports consistent abrasion conditions throughout the test.
How Is the Nordic Abrasion Test Performed?
First, the operator prepares the aggregate sample according to the required particle-size fraction. The sample is then placed inside the drum together with the specified quantity of water and abrasive steel balls.
After the drum is securely closed, the required number of revolutions is selected and the test is started. The aggregate particles continuously interact with the steel balls, water and internal drum surfaces.
When the specified number of revolutions has been completed, the sample is removed. The material is then washed, sieved and dried according to the test procedure. The mass loss is calculated and reported as the Nordic abrasion value.
Abrasion Resistance of Road Aggregates
A lower abrasion loss generally indicates stronger resistance to wear under the specified test conditions. This information helps laboratories compare aggregate sources intended for demanding pavement applications.
However, the Nordic abrasion result should be evaluated together with other aggregate properties such as fragmentation resistance, polishing resistance, particle shape and water absorption.
EN 1097-9 Nordic Test
BS EN 1097-9:2014 is currently listed by BSI as current and under review. It specifically covers resistance to wear caused by studded tyres using the Nordic test.
The LT-A1071 Nordic Abrasion Machine combines controlled drum speed, stainless steel construction and automatic test operation to provide a reliable system for repeatable aggregate wear testing.
