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Waterproof plugging and leakage (also known as waterproof leakage)

Waterproof plugging and leakage (also known as waterproof leakage)

(Summary description)

Waterproof plugging and leakage (also known as waterproof leakage)

(Summary description)

Information

Waterproof plugging and leakage is the name of the combination of waterproof engineering and concrete engineering.Because both projects can achieve the purpose of waterproof, the industry is generally collectively referred to as waterproof engineering.To find the cause of water leakage must go deep into the "visceral" analysis and judgment, in order to apply the remedy to the case.

The basic knowledge of waterproof and leakage plugging are: the characteristics of water, the pressure changes of water and water vapor, positive waterproof is better than negative waterproof, etc.

elementary knowledge

First, the characteristics of water

Water is not porous, it through the wind pressure, convection, impact, attachment, capillary and other forces, gradually infiltrated into the building, and in the process of penetration is not easy to find from the surface.

II. Pressure change of water and water vapor

Once water penetrated into the building, in a limited space, such as the sun, heat energy, form water vapor, the water vapor produces a lot of pressure enough to damage the original waterproof layer, and even surface decoration and decoration (for example, paint off, wallpaper, black wallpaper, ceramic tile drum, wooden floor) in other words, a unit of water, if all into water vapor, in the limited space inside the building, produced 1240 times the pressure, the destruction of the pressure is too terrible.(So we often find that waterproof glue construction on water-containing foam cement, soon the whole drum peeled off.)

Third, grass-roots requirements

The interface with waterproof materials must not be bulging, sand, honeycomb, wood, paper, sludge, small stones, can not sit on the loose unreliable surface, the reason is poor attachment, plus solar ultraviolet damage, the building itself heat expansion cold contraction, and steam pressure damage, easy to cause waterproof layer aging, failure.

Four. Positive waterproof is better than negative waterproof

If the roof waterproof, directly sit on the surface of the roof, the wall waterproof should directly sit on the external wall, the water tank leakage directly sit in the inner layer of the water tank, the water pressure will spread to other places, the dead corner of the house is not easy to construction.The "superior" mentioned here is relatively relative and not absolute.Because with the development of science and technology, people on the market have launched the back water construction of waterproof materials and high and low pressure injection of synthetic resin to produce expansion crystals, can also be waterproof, but not all occasions can be successfully constructed, so have no choice but, should be positive waterproof construction.

Five, the containment type of waterproof is easy to fail

Waterproof should start from the root, with the containment method, water is ubiquitous, will also produce pressure damage, the root can not be lasting, for example: the top floor leakage position, just in the illegal construction room, the general people want to cut the water from the periphery, easy to failure.

VI. The definition of leakage stop is

No matter the size of the water pressure, no matter the next few days of rain, also no matter the roof, in short, the room paint does not change color, do not bubble.

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