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how basement moistureproof and waterproof?

jiu0 edited on2017-06-07 05:22:40 58 views

The moistureproof and waterproof of the basement is usually done by the professional person, how the basement moistureproof and waterproof. Note that moisture and water are not the same, refer to:

Because of the basement wall body, floor buried in the soil, long-term erosion of moisture or underground water, can cause indoor floor, wall sheng, wall decoration layer off, serious when indoor water, affect the normal use of the basement and the durability of the building.

Therefore, the basement must take corresponding moistureproof, waterproof measures to ensure that the basement is not damp, not leakage.

( a ) the moisture proof of the basement

When the highest water level of the local water is lower than 300 ~ 500mm of basement floor, the wall and floor of basement will only be affected by moisture in the soil, so only moisture-proof treatment is needed, that is to take moistureproof structure in the wall and floor of the basement.

When the wall of the basement wall is brick wall, the wall must be constructed with cement mortar, and the gray seam is required, and vertical moisture-proof layer is provided on the outside of the wall and horizontal moisture-proof layer is provided up and down the wall.

The vertical course of the wall is: first on the outside of the wall 20mm thick 1: 2.5 cement mortar leveling layer, extend to the apron more than 300mm, after the leveling layer is dry, brush a cold foundation oil and two hot asphalt, and then backfill on the outside of the wall

Low permeability soil, such as clay, lime soil, etc., and compacted layer by layer, width not less than 500 mm; The wall horizontal course is set at 60 mm below the basement floor, and is set at 200mm above outdoor floor. if the wall adopts cast - in - place reinforced concrete wall, no moisture - proof treatment is required.

When the basement needs moisture - proof, the floor can adopt non - reinforced concrete, its moisture-proof structure.

( 2 ) waterproof of the basement

When the highest water level of the local water is higher than the basement floor, the wall and floor of the basement are immersed in the water.
At this time the outer wall of the basement will be affected by the pressure of the groundwater side, the floor will be affected by the buoyancy of groundwater,
These pressure water has a strong penetration ability, can lead to the basement leakage, affect normal use.

Therefore, the external wall and floor of the basement must take waterproof measures.
The concrete method is coiled material waterproof and concrete member self - waterproof two kinds.

1. waterproofing of coiled material

In the project now, the waterproof layer of coiled material is generally used polymer modified asphalt waterproofing membrane
( such as SBS modified asphalt waterproofing membrane, app modified asphalt waterproofing membrane ) or synthetic polymer waterproofing membrane ( such as EPDM waterproofing membrane, reclaimed rubber waterproofing membrane, etc. )
The waterproof layer is formed by bonding with the corresponding cementing material.
According to the location of the waterproof layer of the coil, extra waterproof and internal waterproof.

( 1 ) exterior waterproofing is the practice of covering the waterproof layer of coiled material in the basement wall and the outside of the floor, and its construction points are as follows:
First, to make the waterproof layer of the floor, and extend the stubble on the outside of the external wall, connect the waterproof layer of the wall and its overlapping, and water the highest water level of 5000 - 1000 mm,
Then the wall of the wall is built on the outer side of the wall to protect the wall. Attention should be paid to the vertical moistureproof layer on the upper part of the waterproof layer of the wall.

( 2 ) internal waterproofing is the method of filling the waterproof layer of the coil with the inner side of the basement wall and floor structure, waterproof inside

Construction is convenient, but passive waterproof, waterproof, so generally used for repair works.

2. zi of concrete members

When the wall of basement and floor are reinforced concrete structure, the impermeability of concrete can be improved by increasing the compactness of concrete or adding waterproofing agent and aerated admixture in concrete.
At this time, the basement does not need to specially set the waterproof layer, this kind of waterproof method is called the concrete member self - waterproof.
When the basement is self - waterproof, the thickness of the external wall plate shall not be less than 2mm, the thickness of the floor shall not be less than 150mm to ensure the rigidity and impermeability effect.
In order to prevent the erosion of groundwater on reinforced concrete structure, the outside of the wall shall be leveled with cement mortar, and then the hot asphalt shall be painted.

For the villa basement moistureproof in essence is different, the moistureproof is the moisture ( water vapour ), while the moistureproof is the ground water ( liquid water ),
The molecular density of the moistureproof layer is difficult to prevent the ingress of moisture into the room.
And the water vapor in the basement is a certain pressure, pure moistureproof coating to do, not only can not play the role of moisture, but also because of the pressure, will also make the moistureproof layer bubble, or the phenomenon of shedding.
Therefore, the basement, or the first floor of the ground to do moistureproof before must be professional moistureproof treatment.

Simple basement moisture proof needs only on the surface covered with waterproof coil or directly sprayed moisture-proof liquid can achieve the purpose of the basement moistureproof,
The feature is that the cement mortar is plastered on the outside wall, and the cold foundation oil is used together with the hot asphalt, and the underground water is attacked by the lower part of the brick wall and concrete.
The horizontal moistureproof layer course is applied at the same elevation of the ground to prevent moisture in the soil from being filled with 2: 8 lime soil along the rising wall of brick masonry wall by capillary effect.

The underground space of the villa is generally humid, so the wall decoration material should be the best waterproof wall material.
The basement moistureproof of Tongji microlite as a model of thoroughly solving the problem of basement moisture - proof, it has a strong social consciousness.
According to the requirements of the villa basement moisture-proof code, the civil construction shall be waterproof and initiative waterproof on the outside of the basement wall and the bottom of the basement.
In the room to be waterproof, passive waterproof, passive waterproof is a remedial measure, the construction is difficult, high technical requirements.

The stable development of the basement damp proof market has broad prospects, and should be built to create a transparent market order. Foreign developed countries take up 10 % of the cost of building civil engineering for waterproofing.
This is the way they walk, summed up. It would be wise to take a little bit more ( a few percent ) for waterproofing.
To solve the problem of building 80 % of the leakage in our country, it is necessary to improve the waterproof cost, and to learn from foreign experience, to create a mature, open, transparent benign market competition is imminent.

Villa basement moistureproof and moisture-proof or have essential difference.
The basement of the villa is moisture ( water vapour ), and the moisture - proof is ground water ( liquid water ), the molecular density of the moisture-proof layer is difficult to prevent the moisture from entering the room.

And the water vapor in the basement is a certain pressure, pure moistureproof coating to do, not only can not play the role of moisture, but also because of the pressure, will also make the moistureproof layer bubble, or the phenomenon of shedding.
Therefore, the basement, or the first floor of the ground to do moistureproof before must be professional moistureproof treatment.

url:http://www.aneave.com/p838
published on:20170607 05:22:40 guangzhou

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