Nowadays, the fiber cement board as the external wall hanging board has become a kind of normalization, and the construction technology of the fiber cement board as the exterior wall joint is always relatively complex. Design requirements are more targeted, so what treatment methods should we pay attention to in construction? Xiaobian here for you to collect and sort out some construction skills and methods, we did a discussion together.

1. Check the quality of goods before the construction of fiber cement board wall panel

The processing accuracy and concrete maintenance quality of the prefabricated fiber cement board wall directly affect the installation accuracy and waterproof condition of the wall panel. Before the installation of the wall panel, it is necessary to carefully review the several dimensions and flatness of the wall panel, check whether the concrete around the wall panel surface and the embedded window frame is dense, whether there are through cracks, and the wall panel with unqualified concrete quality is prohibited to use.

In addition, we also need to carefully check the installation quality of the embedded rubber strips around the wallboard, check whether the rubber strips are embedded firmly, whether the corner parts are damaged, whether there is concrete slurry leaking into the rubber strips to form the rubber strips become hard and lose elasticity. It is necessary to strictly check the rubber strips to ensure that there are no defects. If there are quality problems, it is necessary to replace them before hoisting.

2. During the construction of wallboard, the installation precision shall be strictly controlled, and the measurement and setting out shall be done carefully before the wall panel is hoisted

Not only the datum line should be set out, but also the azimuth line of the wallboard should be put out to facilitate the positioning of the wallboard during hoisting. The accuracy adjustment of wallboard is usually divided into two steps: coarse adjustment and fine adjustment. Rough adjustment is to make the wall board in place and unhooked according to the control line. The fine adjustment requests that the axis orientation and straightness error of the wallboard be adjusted to the allowable error range of the specification. In practice, the requirement is not more than 5mm.

3. During the waterproof construction of fiber cement board wall board joint, strictly follow the process flow and check the quality of each process

The external gluing of wall panel joints should be carried out strictly in accordance with the planning process. It is necessary to clean the base layer and the reserved cavity with high-pressure air. Before gluing, the depth of back lining should be carefully checked. The thickness of gluing should meet the planning requirements. The wallboard at the gluing position should be treated with primer to enhance the bonding force between the adhesive and the concrete wallboard. When the gluing is stopped, the construction joint should be reserved. The construction joint should be high inside and low outside, and the overlap should not be less than 5cm.

Polyurethane sealing treatment shall be applied to the connecting iron parts and cross joints inside the wallboard. Since there is no rubber water stop strip at the iron parts, rust removal and rust prevention of iron parts shall be done carefully before polyurethane construction. Polyurethane shall be applied tightly without any gap. After construction, water splashing test shall be conducted to ensure no leakage before sealing the cover plate.

4. After the completion of the construction, the waterproof effect test shall be carried out, and the leakage problem shall be handled properly and timely

After the waterproof construction of fiber cement board wallboard, the water spraying test should be carried out in time to check the usefulness of waterproof. The key points of water spraying are the cross joint of the wall panel, the joint of the prefabricated fiber cement board and the cast-in-place structure, and the window frame. When pouring water, the fire hose should be used to spray the experimental part, and check whether there is degumming phenomenon at the gluing part and whether the drainage pipe is discharged The water is smooth. Carefully observe whether there are watermarks and water marks on the inside. It is necessary to carefully record some leakage parts, find out the factors and deal with them in time. If necessary, a polyurethane waterproof layer can be added inside the wall panel to improve the safety factor of anti leakage.

After the waterproof construction of fiber cement board exterior wall joint is completed, the water spraying test should be carried out in time to verify the effectiveness of waterproof. The key points of water spraying are the cross joint of the wall panel, the joint of the fiber cement wallboard and the cast-in-place structure and the window frame. The water trace should be observed well. Although the fiber cement board is used as the external wall in the construction field, the poor waterproof joint construction will cause more problems in the future use. Today, the prefabricated building is becoming more and more popular. Through the above process construction, the fiber cement board exterior wall waterproof has a revolutionary new breakthrough and fully guarantees the exterior wall waterproof All aspects of wall decoration.

For more information, please pay attention to the official platform of COSCO Willie Industrial Co., Ltd

Brief introduction of ocean Willy company

Jiangxi ocean Willie Industrial Co., Ltd., established in 2001, is located in Jingdezhen, Jiangxi Province, the "porcelain capital of the world". It is a professional R & D and manufacturer of fiber cement board, the solution of building system with fireproof board and prefabricated housing wall. It is a national high-tech enterprise and a listed reserve enterprise in Jiangxi Province. "Ocean Willy" trademark is a famous trademark in Jiangxi Province, which has passed ISO9001 quality management system certification, ISO14001 environmental management system certification and CE EU certification, and is listed as one of the key enterprises of comprehensive utilization of environmental protection and energy-saving resources.

The company implements the three product strategy of "emphasizing brand, strengthening quality and excellent products", implements the project sales management mode of "production, technology and engineering Trinity", relying on the advantages of local resources, independently develops and produces "ocean Willy" brand series products, including low, medium and high density fiber reinforced cement board, Jianyuan low density board, clear water wall rock plate, wall rock color plate, FCA steel Structural floor, fireproof and anti sinking ceiling, fireproof perforated sound-absorbing board and fireproof FCA board. It is a well-known and influential manufacturer of grade A1 fireproof board products in Jiangxi Province.

"Ocean Willy" series of fire and environmental protection board has the advantages of fire prevention, moisture-proof, heat preservation, durability, sound insulation, heat insulation, light weight, high strength and environmental protection. Ocean Willy series plates can completely cover and replace all the plate materials and non load bearing wall materials in a building.

The company's products are widely used in Qinshan nuclear power station, high-speed railway station, State Grid Substation, many five-star hotels, Grade-A office buildings, Grade-A hospitals, landmark public buildings, etc. In the foreign market, after more than ten years of efforts, the company's products have been exported to the Middle East, Southeast Asia, Africa, Latin America, Europe, the United States and other 50 countries and regions. "Ocean Willy" series products enjoy high popularity at home and abroad, winning the unanimous recognition of customers at home and abroad.