With the development of our country’s economy and the improvement of people’s material living standards, the speed of urban and rural construction is also rising like a storm. Architectural waterproofing materials play a vital role in architectural engineering as part of construction projects. How to apply the building waterproof material in the leaking project of the building is a problem that must be considered by each construction unit. For some traditional materials, there are some problems, such as asphalt, linoleum membrane, etc. on the one hand is not conducive to environmental protection, on the other hand, its durability is relatively low, and construction is difficult. At present, China's new building waterproof materials can be divided into six categories:: polymer modified bituminous waterproof membrane, construction waterproof coating, synthetic polymer waterproofing membrane, construction sealing material, rigid waterproof material and special waterproof material. It is widely used in waterproof and impervious projects such as houses, walls, kitchens, bathrooms, pools, sidewalks, floors, bridges, embankments, agricultural channels, and underground pipes. Constructing waterproof materials for building waterproof materials is an important aspect related to the safety of people's lives and properties. How to make technical applications of waterproof materials is a reality that we must face now in our projects.

First, the choice of building waterproof material New waterproof material has been continuously developed! Entering the market for sales, the choice of building waterproof materials is not as good as the waterproof material, and the better the effect, the choice of waterproof material should be based on the design and practical conditions, select the appropriate waterproof material. When choosing, materials should be selected based on the principles in this area. The performance of waterproof material is good, the quality is reliable, the stability of the material is better, and it is required to be convenient for storage and transportation. The construction is convenient and flexible, and the service life is longer, and the material price is moderate. In short, in the selection of each material, appropriate materials are selected according to the site, conditions, environment, building grade, and functional requirements of the project, because each material has its own characteristics. Because of the different buildings, In order to achieve the best waterproof effect, the characteristics of various materials can be played well.

1, the choice of roof waterproof material. The roof is affected by various comprehensive factors such as mechanics, physics and chemistry. It is mainly due to the long-term exposure of the roof, directly affected by the atmosphere, freeze-thaw cycles, thermal expansion and contraction, and dry and wet changes. As well as some sun, ultraviolet and ozone effects, as well as the effects of frost, rain, and snow erosion and weathering, as well as some structural structural influences, the temperature difference and the use of force-stretching waterproof membranes or coated carcasses during construction to make waterproofing The layer is under high stress and can cause premature damage to the roof. Therefore, it is necessary to select a material with good aging resistance and a certain degree of extensibility and high heat resistance. Then, in the selection of roofing waterproof material, polyester tire modified bituminous membrane, EPDM sheet, or asphalt linoleum should be selected.

2, the choice of underground waterproof material. Underground works are not well maintained due to long-term wet conditions, and the temperature difference is relatively small. The required waterproofing materials are excellent impermeability and elongation and good overall water impermeability. It also requires mildew-resistant, corrosion-resistant, long-life flexible materials. Such as when using a polymer waterproof substrate, you need to use a good water resistance adhesive, the thickness of the substrate should not require less than 1.5 mm, also like polyurethane, silicone rubber waterproof coating materials, etc., the thickness should Not less than 2.5 mm. Under normal circumstances, every additional waterproof layer in the room, cement-based inorganic rigid waterproof material is appropriate.

3, the choice of waterproof material between toilets. The area of ​​toilets and baths is generally relatively small, and there are many yin and yang angles. The waterproof material selected for waterproofing projects should be able to be selected on the basis of such principles. First, it is suitable for changes in the shape of the grass-roots level and conducive to the laying of pipeline equipment, and the second is to prevent water seepage. Sex, seamless overall coating. The purpose of doing so is to address the small area of ​​the toilet, the number of yin and yang angles, the number of wearing pipes, sanitary equipment and other factors as well as the ground, floor, wall connection structure is more complex and so on.

Second, the construction of waterproof materials, building leakage causes and treatment measures 1, roof leakage and treatment measures. At present, the phenomena of roof leakage in our country are various. According to a survey, the leakage rate of waterproofing by coating film is the highest, accounting for 44.3% of the total number of waterproofing works for coating film. The second is rigid waterproofing and waterproofing of coils. The leakage rates are 38.7% and 31.4%, respectively. In the investigation of causes of house seepage water, the causes of its materials accounted for 20% to 22%, design reasons accounted for 18% to 26%, construction reasons accounted for 45% to 48%, and management and maintenance accounted for 6%. 15%.

The treatment methods adopted are: First, a flexible waterproof treatment, which is a waterproof layer formed by layering and sticking a waterproof roll and a cement material. The coils used in this area include linoleum coils, high-molecular synthetic coils, and synthetic rubber coils. The second is coating water repellent treatment, which is made of polymer waterproof coating with strong plasticity and strong adhesion, and is directly painted on the base layer of the roof to form a waterproof film layer to achieve the purpose of waterproof and leakproof. Such as plastic, rubber and modified asphalt three major categories of waterproof material.

2, the phenomenon of leakage in the basement and treatment measures. According to the survey, it was found that about 70% of the leaking parts of the basement occurred in the floor part, or on the deepest floor of the floor, or at the corner of the floor or the pit, that is, indoors as an overcast angle, or occurred in The lower part of the underground outdoor wall may also occur in the basement roof. The causes of these problems are various. The basement has different geology, different functions, different design and construction and different phenomena.

The treatment methods adopted are: First, adopt the plugging and plugging method, generally adopt quick-setting mortar, and do construction well above the wet work surface. For locations where the water leakage route is not clear, construction should be carried out based on experience and judgment; otherwise, it is invalid. . The second is to adopt a chemical grouting method. In this method, hydrophobic polyurethane grouting material is mainly used because the problem of gaps is important to deal with. The hydrophobic polyurethane grouting material contains isocyanate-based polyurethane prepolymers, which come into contact with water. A chemical reaction occurs to produce carbon dioxide and a water-insoluble polymer gel. After the chemical reaction occurs, carbon dioxide will be generated and volume expansion will occur, which will allow the slurry to penetrate into the finer cracks and achieve plugging effect. The third method is waterproof mortar surface treatment. This method is applicable to the surface water seepage control and the supplementary waterproof after plugging. The materials used are inorganic waterproof mortar and polymer waterproof mortar.

3. The phenomenon of leakage of water in toilets and bathroom floors and treatment measures. There are two phenomena in the phenomenon of water leakage in the toilet room floor. One is the leakage of the nozzle, which is what we usually refer to as the leakage through the nozzles of the floor and the wall. The second is the seepage between the floor and the wall. leak. The reason for these problems is that the concrete in the structural layer is not compact, and the slope of the water in the ground is not high enough to allow the water in the indoor area to cause the water to seep along the concrete honeycomb, cracks, or voids at the bottom of the wall.

The treatment methods adopted are as follows: First, leakage of water in the roots of floor pipelines is performed. The treatment method is to cut out the grooves with a width and a depth of not less than 10 mm along the roots of the floor, and the grooves are filled with sealed materials. In addition, a colorless or light-colored synthetic polymer waterproof coating is applied at the intersection of the pipeline and the ground to achieve a waterproof effect. Second, when there is leakage between the pipeline and the floor, when the crack is less than 1mm, a synthetic polymer waterproof coating should be applied twice around the pipe and the root of the pipeline. There are certain principles in the height of the brushing pipeline and the horizontal width of the ground. Not less than 100 mm and the thickness of the coating should not be less than 1 mm.