Basement Waterproofing Analyzes the Necessity of Underground Waterproofing

We all know that the basement is damp, cold, and live, and it is not good to put things. However, the space in the basement is so large that we cannot waste our eyes. In this land of gold, the use of space is a problem we should consider. The basement is prone to moisture, so it is important to pay attention to the waterproofing problem during the renovation. So, what are the basement waterproofing practices ? Today Xiao Bian came to give you a detailed introduction to basement waterproofing practices .



A basement waterproofing practice, material preparation

Prior to the waterproof construction of the basement, the corresponding waterproof material should be prepared in advance. The main waterproof materials are: Polyurethane Waterproof Coating, polyester fiber non-woven fabric, polystyrene foam board, etc., and to ensure that the waterproof main material content, strength, flexibility and impermeability, etc. meet the construction requirements.

In addition to these main materials for waterproof construction, auxiliary materials need to be prepared. Examples include xylene (diluents and machine cleaners), dibutyltin dilaurate (coagulant), and benzenesulfonyl chloride (retarder). Major construction tools include electric mixers, mixing buckets, paint brushes, and spring scales. Fire equipment and so on.



Basement Waterproofing practice two, primary treatment

When performing waterproof construction, it is necessary to ensure that the basement and walls of the basement meet the construction requirements. Therefore, the basement should be thoroughly cleaned before construction to ensure that the base surface is clean and tidy.


Waterproofing in basement III. Construction of waterproof layer

After the materials and tools were prepared, the waterproof layer was cleaned and the construction of the waterproof layer was started. The construction of the waterproof layer was advised. Since the waterproof construction of the basement is a negative pressure construction, the construction is difficult, so the professional should be found. Experienced professional construction personnel perform the construction.



1, the deployment of paint

The waterproof layer of the grass-roots level is formed by waterproofing membranes. Therefore, when waterproof construction is performed, the paint must be prepared according to the design requirements of the basement. If the waterproof design of the basement does not have specific provisions for the deployment of the paint, it needs to be carried out according to the general deployment ratio. .

2, waterproof layer construction

The specific operation steps are as follows: To prepare a good mixed paint, evenly brush on the substrate with a squeegee or a roller brush. Generally, it needs to be brushed 3-4 times, because the waterproof layer smearing standard is not less than 2mm, so in each Once coating, there are strict rules for the amount of coating, which is generally 0.8 ~ 1.0kg/m2 in the plane base layer and 0.5 ~ 0.6kg/m2 in the opposite base layer.



3, isolation layer and protective layer

After the Waterproof Coating is applied, the waterproof layer needs to be protected and isolated. This is to make the waterproof layer more durable. Generally, the plane base layer should be evenly sprinkled with fine sand as the isolation layer.

Afterwards, the application machine placed fine stone concrete on the fine sand isolation layer as a rigid protective layer. During the construction, attention should be paid to the destruction of the waterproof layer during pouring. If the waterproof layer is damaged during construction, it must be repaired with the polyurethane mixture in time.

4. The final treatment After pouring the concrete rigid protective layer, it is necessary to make a soft protective layer on the rigid protective layer. Generally, it can be paved with foam plastic material to ensure the destruction of the waterproof layer when the ash soil is backfilled.

Basement waterproof practice design basic requirements

1. Basement waterproofing engineering design plan should follow the basic principle of prevention, priority to row, suit local conditions, advanced design, waterproof and reliable, and economical and reasonable. It can be designed according to the requirement of basement waterproof engineering protection table.

2, the general basement waterproof engineering design, the main external wall pressure or self-water-proof, and then outside the coil waterproof (that is, meet the surface treatment); coil waterproof practices, in accordance with relevant state regulations.

3, underground engineering is more complex, the design must understand the underground soil quality, water quality and groundwater level conditions, take effective defense design to ensure waterproof quality.

4. When the maximum water level in the basement is higher than the basement floor, the basement design should consider the entire reinforced concrete structure to ensure the waterproof effect.

5. The determination of the basement fortification elevation is based on the highest water level elevation provided by the survey data, plus 500mm for the fortification elevation. The upper part can be treated with moisture protection, and the surface water is designed according to the safety and waterproof basement.

6, basement waterproof, according to the actual situation, can be flexible waterproof or rigid waterproof, if necessary, can use rigid and flexible combination of waterproof program. Under special requirements, multiple defense schemes such as overhead and clip walls can be used.

7, underground outdoor waterproof work surface, can be used inside the external defense method, conditions have changed to external defense outside the stick method construction.

8, the protection of outdoor waterproof layer, you can take a soft protective layer, such as polystyrene board.

9, for special parts, such as deformation joints, construction joints, wall pipe, embedded parts and other weak links should be carefully designed, as required for detailed treatment.

Editor's summary: The relevant information about basement waterproofing practices was introduced here for everyone. I hope this article will help you. If you still have anything you don’t understand, you can follow our website and we’ll get back to you as soon as possible.

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