Drainage, drainage system
Advanced drainage systems for waterproofing of buildings and structures
Drainage systems are an essential part of any waterproofing, it solves the problem of relieving hydrostatic pressure from the waterproofing of building envelopes and particularly critical components. Selection of quality drainage extends the life of waterproofing material. The article considers the main types of drainage systems, their features and specifications.
Drainage and waterproofing various structural parts are the most relevant in construction practice. In the system of hydronamic need structures of various types: underground (tunnels, foundations, multi-level underground car Park), embedded (objects, warehouses, reservoirs and containers of various purpose, etc.) and accessible roof. Also it can be industrial buildings, civil engineering projects, hydraulic structures and ordinary cottages.
Excessive moisture and direct contact of the structures with moisture leads to the destruction and corrosion, which ultimately could lead to the destruction of the whole structure.
Is usually mandatory, at the design stage, laid a number of measures to protect building structures. First, it measures for waterproofing and vadodaria through the arrangement of the drainage system, where its purpose is the removal of hydrostatic pressure from the waterproofing of building envelopes and particularly critical components.
The lack of drainage system in the complex of protective measures often leads to the work of waterproofing in extreme conditions and to its accelerated failure with impaired operation mode of underground parts of buildings and constructions in General.
The presence of water in basements, constant dampness, mould, fungal infestation of the wooden parts of the buildings, collapsing in the short term finishes are direct consequences of poor or failed waterproofing installations. If you have one of these features over time we should expect the existence of all the others. It must be remembered that when the design is saturated with moisture, the thermal conductivity decreases and they should be expected dampening to an even greater extent due to the formation of condensation destroyed the finish and finally, there is mold and fungi, and the presence of the supply and case ventilation can further aggravate the situation. In addition, humidity affects the operational environment and equipment, which, in turn, fails.
How to protect subterranean parts of buildings?
One of the most reliable and effective means by which to eliminate or to localize the influence of moisture, is the creation of a drainage system. The most efficient and natural solution is a drainage system outside buildings in the complex with waterproofing. However, this is not always possible. In such cases it is necessary to consider a variant of the device of the drainage system inside the building.
There are several types of drainage systems: formation, wall in combination with a tubular, internal or a combination of which allows to solve issues in our climatic zone. Consider these designs for example drainage systems company “Gydrozo”.
Massive drainage arrange in the base of the Foundation slab, with external and internal side of the premises. It is a structure with a thickness of 8 to 20 mm. In the heart of the system uses the material Maxtrain made of high density polyethylene having high resistance to destructive influences, i.e. durability. The material is waterproof, resistant to root penetration and the influence of the most corrosive substances and the operating temperature. The design of the fabric – membrane, profiled in a special way to create artificial cavities, so-called drain to drain (draining) moisture, ventilation, damping, impact, dirt backfill, etc.
Thanks to the special profile of the blade is provided Maxtrain the passage of water in the range of from 4.5 to 10 l/s p. M. With this permissible load from the fresh concrete of the Foundation slab or soil backfill of the pit
about 200 kN/m2. At a load of 100 kN/m2 decrease in throughput ranges from 5% to 11%. It is easy to imagine such a vertical load that can occur during the concreting of columns with the height of about 4-4,5 m, resting directly on the profiled sheet.
Wall drainage is of several kinds: in the first case fastening is performed by the protrusions 8 mm to protect the waterproofing with the creation of the air gap (here we use the material Maxtrain P8), and the second protrusions and the geotextile to the dirt filling (Maxtrain GHG) emissions. General requirements when mounting that you should consider is the performance of the fastener in the upper part of the canvas (the ground part of the building above the level of the blind area) and compulsory school the bottom of the canvas in the sand-gravel filling pipe drainage to not less than 200 mm.
The internal drainage system runs out of molded polyethylene with synthetic welded mesh or conventional Maxtrain P8 with a metal mesh for subsequent plastering that can be made special, and a cement, gypsum or lime plasters. Finishing inside the protected premises can also be done using gypsum boards. The operation of such a drainage system is provided through vented vent holes, arranged in the overlapping areas of the walls to the floor and ceiling using a specially-mounted profile. Filtered through the walls of the building moisture or the moisture evaporates the condensate through prospirit through air convection or when increased water is removed in the drainage system of the building. While the plastered wall surface is dry.
The application of the internal drainage allows:
to maintain the current during the operating period of the specific hydrogeological conditions of the surrounding soil mass, which contributes to the exclusion of any possible deformation of the structures in the future;
to protect the operated areas from moisture and other corrosive liquids through the walls and floor of the building;
to eliminate the possibility of condensation on internal surfaces, which ensures the preservation of internal surfaces (walls and floor space) dry during the entire period of operation of the premises.
The conditions under which is under construction and will be operated by the building, do not allow to make a wrong decision, to show a lack of attention to financing, especially when it comes to underground parts of structures, as in the design phase and the construction phase. So if you have any difficulties or questions to receive expert evaluation, as well as conventional technical solutions, the calculation of the delivery, consulting or construction services should be invited professionals.