Attachment to a pendulum impact tester

Conclusions

• 1. The attachment designed for the pendulum impact tester MK-05 serves to test for impact-bending-cantilever mounted smooth specimens of surfacing materials.

• 2. It is shown that impact viscosity does not depend within certain limits on the scale factor (size of the specimen's cross section and its overhang length). The method provides an adequate reproducibility, it has no systematic (nonrandom) error, and it provides good sensitivity in testing materials with different hardnesses.

• 3. This method and the reconstructed instrument can be standardized for testing impact viscosity of surfacing materials which have different hardnesses and nonuniform structures, but whose separate components are not large enough to affect the test results (quasiuniformity is maintained).