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[Construction - Section 164]

DRAINAGE PIPES

Thinner drainage pipes, which are up to 50 mm, known as sucker, thicker tubes as a collector (usually about 100 mm) and the so-called closed tubes called arresters.
The expansive drainage can, for example, through gravel layers with a defined particle size distribution or special construction products, as drainage dam plates for basement walls are made. For buildings, with a smaller area of for example fewer than 200 m , to additional drainage pipes under the structure waived. A surface drainage is still with the order and the surrounding structure to collectors.
For a permanent function, a drainage is usually from the lower end rinsed. At the upper end of the drainage is often an additional rinsing possibility required.

REMOVAL OF WATER

With the scheduled removal of the impending water is particularly collecting water on the actual structure waterproofing avoided. So the requirement can be performed on the seal structure reduced. If the walls are already wet or damp, will be a renovation of the basement dug often. To protect against rising moisture can drill holes from the inside wall in the basement implemented. There is now a gravel squeezed. The holes have a distance of about 20 cm. Depending on the masonry can this gap somewhat narrower. This technique helps, but only when soil moisture, no longer is not pressing or pressing water.

A drainage can only help to reduce the water demands of a structure. An additional waterproofing measures for the protective structure is essential. The required sealing measure can be used as so-called black tub (with the help of bituminous materials), (readily bitumen, see above). The seal can also be executed by impermeable concrete components, such as the white tub. For the alternative white tubs, but as a rule on these types of drainage waived.