摘要 |
<p>The structure (10) has a frontal mesh grid (15) mounted in a rectangular support frame (11), and a rear panel (16) arranged parallel to the mesh grid. The rear panel is assembled within the frame to define a space between the frontal mesh grid and the rear panel. The space is filled with a material in fragmented form, where fragments of the material have dimensions partially higher than dimensions of meshes of the frontal mesh grid. The filling material is selected from fragments of rocks, stones, pebbles, natural state mineral particles, agglomerated mineral particles, transformed mineral particles, natural state agglomerated or transformed vegetable material particles, bark chips, agglomerated wood particles, glass elements, ceramic elements, synthetic and/or composite particles and their superimposed mixtures and/or clusters.</p> |