This document describes an index test for the determination of the protection efficiency of a geosynthetic on a hard surface, exposed to the impact load of a hemispherical object.
The index test measures the change in thickness of a thin lead plate lying between the geosynthetic and a rigid support.
It is also used as a performance test, by using the real rigid surface to protect and the real sequence of geosynthetics.
The test is applicable to all geosynthetics with apertures smaller than 15 mm (maximum size).
PUBLISHED
SSH EN ISO 13428:2007
IN_DEVELOPMENT
prSSH EN ISO 13428:2024
40.20
DIS ballot initiated: 12 weeks
Feb 9, 2026
Only informative sections of projects are publicly available. To view the full content, you will need to create an account. If you are a member, please log in to your account by clicking on the "Log in" button.
Shqip