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Storage drainage plate

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  • PRODUCT DETAILS
  • High density polyethylene (HDPE) or polypropylene (PP) is a kind of light plate formed by heating and pressurizing, which can not only create a drainage channel with a certain three-dimensional space support rigidity, but also can store water.

    The plate itself has two comprehensive functions of water storage and drainage. The plate has the characteristics of extremely high spatial stiffness, and its compression resistance is obviously better than similar products (which can be tested by field tests) and can bear it.High compressive load above 400Kpa, and can withstand the extreme load of mechanical rolling in the process of planting roof backfill.

    Features

    1The construction is convenient, the maintenance is simple and economical.

    2Strong load resistance and durability.

    3It can ensure that the excess water is quickly drained away.

    4The water storage part can store part of the water.

    5It can provide sufficient water and oxygen for plant growth.

    6Light weight and strong roof insulation function.

    Use

    Used for roof greening, underground roof panel greening, city square, golf course, sports ground, sewage treatment plant, public building greening, square greening, road greening in the park  。

    Attention to construction

    1.When used in flower ponds, flower troughs and flower beds in gardens, water storage plates and filter geotextiles are directly used instead of regular materials (such as filter layers composed of ceramsite, pebbles or shells).

    2.When used for greening hard interfaces such as new and old roofs or underground engineering roofs, before laying drainage boards, clean up the sundries on the site, set up a waterproof layer according to the requirements of the design drawings, and then use cement mortar to slope up, so that there is no obvious unevenness on the surface. The drainage boards are discharged in an orderly manner, and no additional blind drainage ditch is required within the laying range.

    3.When used as building sandwich panels, the storage drainage board is laid on the roof concrete slab, and a single wall is built outside the storage drainage board, or protected by concrete, so that underground seepage water flows into the blind ditch to the sump through the overhead space of the drainage board.

    4.The storage and drainage boards are spliced with each other. The gap during laying is used as the lower drainage channel, and the geotextile filtering and moisturizing layer on it should also be overlapped when laying.

    5.After the drainage plate is laid, the next process can be carried out to lay the filter geotextile and matrix layer as soon as possible to prevent soil, cement and yellow sand from blocking the pore or entering the water storage, water tank and drainage channel of the drainage plate. In order to ensure that the storage and drainage board gives full play to its role, an operation board can be laid on the filter geotextile to facilitate greening construction.

    Construction laying

    1.After the construction of the waterproof layer and its protective layer is completed, the drainage board shall be paved. It is required that the drainage slope of the base course shall be 2 ‰ ~ 5 ‰.

    2.Pave the cup-shaped mouth of the drain plate upward and buckle the perforations;

    3.The drainage board is covered with geotextile, and the geotextile overlaps each other by 10~20cm, so as to prevent muddy water from passing through the geotextile and blocking the storage and drainage system, resulting in poor drainage and reduced water storage;

    4.10~20mm medium-coarse sand shall be laid on the geotextile to form a permeable filter layer, which can prevent the loss of planting soil;

    5.Cover planting soil of appropriate thickness.

    6.To do a good job of drainage board finished product protection. After the drainage board is paved, it is not allowed to directly push trolleys on the drainage board. When transporting materials, wood boards and horse lanes shall be laid. Fill soil with paving.

     

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