What Is The Use Of Bentonite Waterproofing Technology In Building Construction?

Bentonite Clay is a waterproof material, this waterproof material is a new type of waterproof material, its waterproofness in the waterproof material has great advantages, has been applied in many engineering construction, especially in some civil construction of the construction of a wide range of applications, such as the construction of the basement, effectively improve the waterproofing of the building, so the bentonite waterproofing technology is more and more people's attention.

Basic Properties of Bentonite Clay

Bentonite clay ore's quality is very good, and will contain a small amount of metal.In addition, bentonite is also a kind of aluminosilicate mineral clay, this kind of mineral clay has excellent water absorption.In the process of building construction, can fully play the role of isolation, have a certain degree of water adsorption, this is mainly due to the bentonite since it is a self-healing and expansion of features This is mainly due to the bentonite since it has a self-healing and expansion characteristics, so that in the process of construction, if some parts of the construction process, if a small damage, these parts can be self-repairing, there will be no leakage, in addition to the bentonite can adapt to wet weather, so in the process of construction, by the influence of the weather is relatively small, and can be minimized to avoid the occurrence of safety accidents.

As bentonite has the characteristics of waterproof, so bentonite has a more stable chemical properties, bentonite and water in contact, it will be expanded, in general, bentonite will be expanded to the original to 5 times or so, so that bentonite after a period of time, it will be quickly gelatinized, become an effective waterproof barrier.

Bentonite Waterproof Material Classification

1. Bentonite waterproof board in the production process, mainly to the concrete to add some mixing agent so as to mix the made after these materials are mixed evenly, can be filled to the tile, so that the formation of a bentonite waterproof board, this bentonite waterproof board can be laminated outside the concrete wall, the use of very simple, close to the compaction will be able to play a waterproofing role, therefore, in the construction of building projects. Role, so in the process of construction engineering is widely used.

   
   

2. Bentonite stop strip is mainly the use of rubber, rubber added to bentonite made of bentonite, bentonite stop strip, before the production of the shape of the stop strip can be designed according to the actual requirements of the construction of the shape to determine, so that in the process of filling, you can fully ensure that the stop strip can be squeezed after a better adhesion with the gap.

   
   

3. Bentonite mud  is mainly a mud-like paste, this mud-like paste is bentonite and some other materials mixed to form, mainly in the wall joints and pipe edge filling in the use of a material, this soil mud in the expansion can reach the original twice, so that it can be better with the gap for the fit, in addition to waterproofing, in such a case, you can Make the building become more practical, improve the quality and stability of the building.

Application Of Bentonite Waterproofing Technology In Building Engineering Construction

• Grass-roots treatment methods.In the process of construction, it is necessary to carry out grass-roots level treatment to ensure that the grass-roots level, can not appear the phenomenon of stagnant water, nor can there be potholes, must ensure that the grass-roots level is solid, there will not be any loose phenomenon, grass-roots level in the process of processing, if found a relatively large gap or pit, then it is necessary to carry out the filling of the concrete in a timely manner to fully ensure that the grass-roots level is Leveling.

  
  

• Waterproofing method of base plate acceptance of the grass-roots level.In the process of acceptance of the grass-roots level, the grass-roots level must be hard and solid, can not appear any bumps, also can not have the phenomenon of potholes, so that there will be a pooling of water the width of the gap, not more than 25mm, and the depth of the gap can not be more than 10mm.

  
  

• Corner treatment. In the shaded corners of the horizontal and sloping surfaces, it is necessary to use bentonite particles to make the corners, and the height of the corners is 50mm, and the length is 50mm.The laying of coil additional layer, coil additional layer in the process of laying, need to lay in the yin and Yang corners, the width of the additional layer of about 300mm or so, need to fix the additional layer on several layers, and fixed spacing can not be more than 300mm, but also need to extend the additional layer, the extension of the length of 150mm.

  
  

• Node processing. Three-dimensional yin and yang corners are sealed with margarine. All through the wall, plate fittings around the need to cut out 50mm wide, 50mm deep diagonal groove and filled with bentonite particles or horse fat.

  
  

• Waterproof layer acceptance. Confirmation of the coil without sagging, no wrinkles in the lap area, warping and bulging phenomenon. Lap width error shall not exceed 10mm protection.

  
  

After acceptance with polyethylene membrane cover. Adjacent polyethylene membrane lap 100mm, sealed with waterproof tape. Waterproofing roll-roofing for the protection of the wall in addition to polyethylene membrane should also be protected board permanently to prevent damage to the waterproofing layer during the construction of the external wall structure (eg, when tying tendons). Two adjacent protection boards are lapped by 100mm and fixed with nails.