Bottom plate of Tianhai drainage protection board is produced from HDPE with high impact resistance and pressure resistance, can resist long-term high pressure, and will not generate deformation. The long-term pressure resistance not only can resist weight of concrete bottom plate and its load, but also can bear unavoidable outside pressure and impact force during construction, for example, vehicle, worker stepping, concrete pouring impact force, etc. It can keep bottom plate no deformation for long term, so original drainage quantity can be kept. Application of filter layer earthwork fabric on bottom plate is to ensure drainage channel isn’t blocked by foreign object, for example, backfilling particle or concrete.
Drainage protection board integrates waterproof and drainage, so es relation between waterproof and drainage successfully, and is better and more reliable than traditional stone pottery particle drainage and other filter layers both in drainage function and economic benefit.
It is widely used in waterproof and drainage of roof garden, outdoor garage top plate greening, retaining wall, basement, tunnel, subway, underground infrastructure, side slope and expressway roadbed.
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