wasserdurchlässiges flächenbefestigungselement and its application

摘要

the invention relates to a wasserdurchlu00e4ssiges flu00e4chenbefestigungselement (2) for surfaces with a body with binder under release of continuous pores (20) associated mineral grains (22), in particular concrete.according to the invention has a body (4) u00fcberdeckende vorsatzschicht (6) with the body through pores (20) whose arithmetic free durchlau00dfquerschnitt is smaller than the average free durchlau00dfquerschnitt the pores (28) of the body.the invention also concerns the use of a hochdruckwasserstrahlverfahrens to freispu00fclen of continuous pores (20) of the vorsatzschicht (6) in the flu00e4chenbefestigungselemente verkehrsflu00e4chenverbund (2).