Safety device for flat roof in building industry, has gravel grains with organic binder, where grains are connected to two-dimensional structure and bonding between grains comprises single component and multi-component polymers

摘要

The device has gravel grains with organic binder, where grains are connected to a two-dimensional structure. Grain size of the gravel comprises a diameter of 8 millimeters to 64 millimeters, and bonding between the grains comprises a single component and multi-component polymers such as two to three component resin, polyurethane, epoxy resin, acrylate, poly methyl methacrylate (PMMA), polyester and latex.