| 摘要 |
<p>A sub-base and paving construction for roads, streets and similar surfaces exposed to load, such as footpaths, pavements, parking lots, loading areas, sports grounds and the like. The construction consists of at least one drain pipe (2) embedded in a layer (1) of preferably fine-stone macadam, a layer (3) of coarse-stone macadam placed laterally of and on top of the layer (1) and a levelling layer (4) of fine-stone macadam on top of the layer (3) of coarse-stone macadam. A paving (5) of draining asphalt is placed on top of the levelling layer (4).</p> |
