Bituminous Mixtures - Test Methods for Hot Mix Asphalt - Part 49: Determination of Friction After Polishing
Also Known As:
The DIN EN 12697-49 standard provides a method for measuring the friction of bituminous mixtures after they have undergone a polishing process. The test is conducted on samples of the mixtures, which can be either laboratory-produced or obtained from the construction site.
The friction measurement is taken at a speed of 60 km/h after a fixed number of passes on the polished surface. This method is also known as the Wehner and Schulze method. The standard provides guidelines and instructions for conducting this test, ensuring consistent and reliable results.
By determining the friction after polishing, this standard helps evaluate the skid resistance properties of bituminous mixtures, which is important for road safety. The results obtained from this test can be used to optimize the design and selection of bituminous mixtures, ultimately contributing to the safety and performance of asphalt pavements.
| Descriptors | Asphalts, Construction, Construction materials, Definitions, Friction, Hot mix asphalts, Measurement, Measuring techniques, Polishing, Procedures, Road construction, Samples, Skid resisting properties, Surfaces, Test specimens, Testing, Methods, Processes, Tire grips |
| ICS Codes | 93.080.20 - Road construction materials |
| Language(s) | English |
| File Size | 2.0 MB |
