How to do a good job in outdoor waterproofing engineering, how to do outdoor waterproofing is the be

1. The waterproof membrane should be paved first, and the treatment should be straightened, and then the two ends of the membrane should be rolled up, and then the prepared cement mortar binder should be poured onto the base layer, and the waterproof membrane should be scraped evenly with a scraper, and finally the waterproof membrane should be pushed forward, and the air inside the membrane should be discharged in time, and the excess binder should be scraped out to ensure that the bonding rate of the waterproof membrane and the base layer is more than 85%.

2. The air insulation layer, waterproof layer and additional layer all adopt the lap joint method. Cemented adhesives are used with a width of 10 cm, while the additional layer joints should be staggered by 5 cm from the waterproofing layer joints. The lap width of the roofing waterproofing membrane is within 8-10cm, the short side is within 10-15cm, the adjacent short-side joints need to be staggered by 100cm, and the angle between the wall and the ground is 30cm.

3. After the membrane is paved and glued, the cement mortar protective layer made on the waterproof layer has a thickness of 2cm, which is divided into two plastering, and the two layers of stubble must be staggered by 20cm. The protective layer needs to be flat and needs to be sprinkled with water for maintenance.

Precautions for waterproofing works:

1. Do waterproofing before the bricklayer sticks the tile. But there is a special situation, if it is to do floor heating, then before the floor heating construction, it is necessary to do a waterproofing, after doing waterproofing, then the floor heating construction, and then the floor heating is covered with cement mortar, and then the bricks can be pasted after doing a waterproofing.

2. The waterproofing of the wall and the ground is not brushed together, but the wall waterproofing is done first, and after the wall tiles are pasted, the ground waterproofing is done, and then the closed water test is carried out, and finally the floor tiles are pasted. If you paint the walls and floors at one time, and step on the ground when you put the wall tiles, it will destroy the waterproofing of the ground.

3. The ground should be clean and dust-free before brushing waterproof. The ground is waterproof and brushed twice, and the direction of the two times should be crossed.

4. The waterproof brush on the wall of the shower area is meters high, and the rest of the wall is brushed 30 cm. In fact, the waterproof brush in the bathing area is enough to be meters high, after all, the splash of water on the human body can't spray so high. It is not mentioned in the specification that if the back of the bathroom is a wardrobe, then the walls should be fully painted and waterproofed.

For example, to do paint waterproofing, take "one cloth and two coatings" as an example: after cleaning the base layer, brush the paint all over again, dry it into a film, lay a layer of fiberglass cloth carcass reinforcement material, and in the exhibition.

Whether it is a prefabricated panel or a cast-in-place structure of the roof waterproofing construction, in accordance with the relevant national specifications, the waterproof construction should be carried out in accordance with the relevant national specifications of "rigid and flexible materials" (rigid materials and flexible materials). 1. Base surface requirements: The base surface is cleaned, the moisture content is not more than 9%, smooth and compact, and the end of each node is neat and complete, which meets the requirements.

2. The first waterproof layer of roof waterproof construction:

1) Lay a flexible waterproof layer, choose paint or membrane. The waterproof construction conditions of the roof require that the moisture content of the base surface is not more than 9%, so it is suitable for construction in the summer after the hot weather and 5 consecutive sunny days.

After completion, a water storage experiment should be carried out.

2), such as paint waterproofing, take "one cloth and two coatings" as an example: after cleaning the base layer, brush the paint again, dry the film, lay a layer of fiberglass cloth carcass reinforcement material, and brush a layer of paint on the flattened surface to fix, and carry out the next roof waterproof construction after drying.

The total thickness of the roof waterproofing construction coating film should be more than 3 mm.

3) If you do the construction of waterproof membrane, after cleaning the base layer, brush the adhesive glue on the reverse side of the membrane and the base layer, paste and roll according to the elastic datum from far and near, and finally do the seam closing inspection treatment.

4) The second waterproof layer of roof waterproof construction: laying a rigid waterproof layer, which should be constructed about two days after the completion of the first flexible waterproof layer, mainly with high-grade fatty acid mortar waterproofing agent, cement, sand, fine stone aggregate and fiber as the basic materials, and the thickness of the waterproof layer should be 20-30 mm.

a. Install the lattice wood strip according to the requirements of the specification, and the lattice is set to 4000 mm and 4000 mm.

Then sprinkle water to moisten the base, but there must be no standing water.

B, according to the order from far to near, first high and then low, the prepared mortar or fine stone concrete is carried out one by one grid roof waterproof construction, the same grid is completed at one time, smoothing and compaction.

c. After the initial setting, take out the lattice wooden strips, calender and trim the lattice joints.

d. Use flexible sealing materials to embed and fill the lattice seams to treat the surface closing.

The best way to waterproof outdoors depends on the situation and needs. Here are some common outdoor waterproofing methods:1

Spray waterproofing paint: This is a common outdoor waterproofing method that can be used on walls, roofs, and grounds. The coating can form a pure waterproof layer that prevents moisture from penetrating.

2.Laying waterproofing membranes: Waterproofing membranes can be used on roofs, floors, and walls.

They prevent moisture penetration and provide an extra layer of protection. 3.Use waterproof tiles:

Waterproof tiles can be used in bathrooms, kitchens, and other wet areas. They prevent moisture from penetrating and provide an easy-to-clean surface. 4.

Install a drainage system: Installing a drainage system in an outdoor area can help drain moisture away from the perimeter of the building, reducing the risk of moisture infiltration. 5.

Fix holes and cracks: Fixing holes and cracks around the building can prevent moisture from penetrating and provide an extra layer of protection. Regardless of which method is used, the best waterproofing method should be selected on a case-by-case basis and proper installation and maintenance procedures should be followed.

Building waterproofing is an important part of construction engineering, which directly affects the life and safety of buildings and people's living life. Therefore, waterproofing technology is very important in the application of construction engineering, so how to do a good job in waterproofing engineering in construction engineering?

Buy high-quality waterproofing materials

First of all, we should try to use modern new materials and strengthen the promotion and application of new materials, not only to ensure the quality of the project, but also to adapt to the requirements of green environmental protection buildings.

Secondly, when purchasing materials, it is necessary to achieve brand quality products, strengthen the understanding of market dynamics, try to choose manufacturers with good reputation and excellent quality, and effectively ensure the quality of materials.

Third, to strengthen the certification management of materials, to ensure that waterproof materials have qualified quality assurance and factory certificates, after the materials arrive at the construction site, but also after the material retest, to ensure that the retest is qualified, can be put into use, to eliminate and prohibit unqualified construction materials to enter.

Fourth, improve the protection of finished materials.

Construction procedure control

Taking paint as an example, first of all, the reasonable allocation of construction materials. When configuring construction materials, we must strictly follow the instructions, strictly control the material mix ratio, and scientifically divide the construction parts in combination with the construction requirements.

Secondly, it is necessary to control the time interval, which should not be too long or too short. When painting, it should be combined with the design requirements and carried out many times until the design standards are met.

Detailed construction of the project

In the waterproof construction of construction projects, it is necessary to grasp the construction of details.

First, the root of the pipe needs to be treated by the construction personnel in combination with the construction requirements;

Second, it is necessary to strengthen the control of weak parts of water leakage, such as pipe roots, yin and yang angles, floor drains and other locations, and add a layer to enhance the waterproof performance;

3. The sealing material should not collapse, bubble or crack, and the combination with the seam wall should be firm, and the pressing and embedding should be tight.

Renew the concept and strengthen the waterproof technology

In the construction of construction projects, it is necessary to change the concept, enhance the awareness of waterproofing, carefully design, strengthen supervision and management, fully understand the importance of waterproof technology, increase supervision, and combine engineering requirements and design requirements, not only to ensure the quality of design, but also to meet the requirements of waterproofing.

First of all, it is necessary to improve management methods, improve the construction of management systems, strengthen construction quality management, ensure the standardization of waterproof construction of projects, and avoid management out of control and the decline of project quality.

Second, the quality of personnel should be improved. It is necessary to improve the quality of designers. Designers must not only have good professional knowledge and ability, but also have a high level of professionalism.

Managers should improve their management ability, adhere to the people-oriented, and strengthen the organization and management of all links. The construction personnel should strengthen their sense of responsibility, strictly follow the requirements of the project, standardize the construction operation, especially for the application of some new processes and new technologies, and effectively grasp them.

Finally, there are regular maintenance. Due to the influence of the external climate, the building will continue to deteriorate over time, so it is necessary to strengthen the regular maintenance of the building. For example:

The roof waterproof layer, which is washed by long-term rain and then irradiated by sunlight, is inevitable that the layer will age, so it must be repaired to extend its life, so as to obtain long-term benefits.

In home decoration, waterproof construction can never be ignored, it is related to the normal water and electricity consumption in the future. Among them, brushing is the basic support and important link of the entire waterproof construction, and if you do this step well, other problems can be easily solved. So, what skills do you need to do a good job of waterproofing construction?

1. The important work before painting is to clean the base and walls. First of all, use a small hammer to knock on the wall and the ground, if you find a crisp and empty sound, it means that there is a hollow drum inside, and you must knock out all the hollow drum parts.

2. Prepare the paint. Before brushing, the ground must be flat, and there can be no chiseled holes or concave chain preparation grooves. When mixing the powder and paint, use an electric drill, and let it sit for 5 minutes after stirring.

3. Brush paint. The coating layer should be brushed in one direction, and after two hours a second layer will be applied, so that there will be a combination between the two layers. Brush the second layer after the layer is completely dry, sprinkle with a small amount of water. Qi attack.

4. Brush repeatedly. It is not easy to brush the thickness of the wall, so you can brush it several times. Some people think that the more layers of waterproof paint the better, and even brushing six or seven layers, which is not good. Because the paint is too thick, it is easy to crack.

5. Do a good job of maintenance after waterproof painting. The maintenance period is within a week after all the steps are completed, and the owner needs to pay attention to the maintenance and take care of it. Once a water leak is found, notify the renovation team and do a good job of remedial work in time.

To sum up, these skills are indispensable if you want to do a good job in waterproof construction.

1. When replacing the floor tiles, after the original floor tiles are chiseled, they should be smoothed with cement mortar, and the slurry should be evenly coated on the wet base surface with a scraper, brush and roller with waterproof paint to prevent leakage and sand holes, and then apply the second layer after drying. Pay attention to the intermittent stirring of the slurry during the construction process to prevent precipitation, and the mixed slurry should be used up within 20-40.

2. Non-heavy lightweight walls should be at least meters high, and the entire wall should be waterproof. The waterproofing of the wall adjacent to the shower location should also be metre-high, and the height of the wall waterproofing coating adjacent to the bathtub should also be higher than the upper edge of the bathtub.

3. Pay attention to the construction of the weak parts and details, and the waterproof coating must be applied in place. When pipes, floor drains, etc. pass through the floor slab, the waterproof layer around the cavity must be carefully constructed. The upper and lower water pipes should be covered with cement mulch, brush 10 20 cm of waterproof paint from the ground, and then make a waterproof layer on the ground to form a composite waterproof layer, and its waterproof performance can also be greatly increased.

How to do waterproofing Hello, dear, <>

Method: The first step is to clean up the base Many bricklayers do not pay attention to this item, but in fact, a good base layer is very important for the construction of waterproofing. When cleaning the surface, the master not only removed the dust and impurities on the surface, but also leveled the depressions and unevenness.

The second step is to brush waterproof the leaky parts, and most of the leakage problems in the bathroom will appear on the edge of the wall, corner or drain pipe. The master said that before doing formal waterproofing, it is necessary to use waterproof paint to waterproof these places. This can make the areas that are prone to leakage more waterproof, and avoid hidden dangers in the future.

The third step is to do the official waterproofing, which is the most critical step. Not only should the waterproof paint be evenly applied to the floor, but also the distance between 30 cm and 50 cm should be returned to the surrounding walls. In addition, the shower area should also be waterproof at least one meter and eight high.

Special attention should be paid to the connection between the wall and the ground must be evenly and slowly painted, without leaving the slightest gap. The fourth step is to maintain the waterproof layer for a period of time after the waterproof coating is painted, so that the coating is fully bonded to the base layer, so that the waterproof effect will be better. The fifth step of the water test test is generally to carry out the closed water test after the waterproof layer is dry.

Usually 24 hours is fine, but sometimes the leak problem takes a day or two, so it is best to do it for 48 to 72 hours. And after the experiment is completed, be sure to check the roof downstairs to see if there are any clues of water seepage. In addition, if it is a sunken bathroom, you must pay attention to the waterproofing before backfilling, which is much more important than the waterproof layer on the ground.

If this is done well, there will be no leakage even if the waterproofing layer on top is not so perfect. Hope it helps!