Drainage board construction process

Construction process:
1. Clean up the garbage at the laying site, cement leveling, so that there is no obvious unevenness at the site, outdoor garage roofs and roof gardens need to have a 2-5 ‰ slope finding.
2. Can drain the water discharged from the drainage board to the nearby drainpipe or the nearby city sewer centrally.
3. basement floor seepage prevention, in the foundation above the elevated floor, that is, before doing the floor now do a layer of drainage board, round protruding platform downward, around the blind ditch, so that the groundwater can not come up, seepage water naturally flow into the blind ditch around the space through the drainage board, and then flow through the blind ditch into the water collection pit.
4. basement wall seepage prevention, can be laid on the main wall of the building drainage board, round protruding platform facing the main wall. Drainage board and then build a layer of single wall or with steel wire mesh powder cement to protect the drainage board, so that the wall outside the seepage board space straight into the blind ditch straight to the water catchment pit.
5. In any lot laying drainage board, must pay attention to: do not let soil, cement, sand and other garbage into the front space of the drainage board, to ensure that the space of the drainage board unobstructed.
6. when the drainage board laying as much as possible to do a good job of protection measures, level or outdoor garage laying drainage board should be done as soon as possible in a timely manner as soon as possible to do backfill, to prevent gusts of wind blowing chaotic drainage board to affect the quality of the laying. Basement and interior wall waterproofing as soon as possible to do a good job of protecting the layer, to prevent the drainage board was destroyed by people or things.
7. backfill soil is viscous soil, in the geotextile cloth need to lay 3-5 centimeters of yellow sand for more ideal, conducive to geotextile cloth water filtration; such as backfill soil is a kind of nutrient soil or lightweight soil without the need to lay a layer of yellow sand, the soil itself is very loose and easy to filter water.
8. Drainage board in the laying of the side and the side of the right lap next 1-2 pivots, you can also touch the two bottom plates, the top use of geotextile lap, as long as there is no soil into the drainage channel of the drainage board can be kept, keep the drainage unimpeded.

Construction specification:
1, please store the drainage board in a dry, ventilated environment, to prevent exposure to the sun, away from sources of ignition.
2, please stand or flat put drainage protection board, not tilted or cross cross pressure, stacking height should not exceed 3 layers, can not be heavy objects piled up.
3、When laying, it should be smooth and natural, and lay it along the slope or according to the direction of water flow.
4, single paving geotextile lap to ensure that 150cm, lap with rubber or sand compaction to avoid movement, and then backfill, the first layer of backfill to ensure that tamped before the next step, layered backfill must be tamped.