一. Preparation before construction
1、Material selection: The quality of waterproof and drainage board can affect the waterproof effect of the project. Therefore, before construction, we should choose high-quality waterproof and drainage boards that meet national standards and engineering requirements. When a material enters the site, it must be strictly inspected, such as appearance quality, dimensions and specifications, physical properties, etc.
2、Base layer treatment: Before laying the waterproof and drainage board, the base layer must be thoroughly cleaned to ensure that there are no debris, oil and floating dust. The uneven base layer should be leveled to ensure that the waterproof and drainage board is laid smoothly.
3、Measurement and payout: According to the design drawings, measure and pay out the lines to determine the laying position and spacing of waterproof and drainage boards.
二. Laying of waterproof and drainage boards
1、Laying method: The waterproof and drainage board should be laid according to the design requirements. Pay attention to the overlap length and connection method between the boards. Overlap joints must be carried out in the direction along the drainage slope, and reverse overlap joints are not allowed. During the laying process, the flatness and verticality of the waterproof and drainage board should be maintained, and there should be no distortion or warping.
2、Fixation and connection: Adjacent waterproof and drainage boards must be connected and fixed to ensure their tight connection and prevent leakage. The connection method can be welding, gluing or mechanical fixing, etc., and should be selected according to the actual situation of the project and the material of the waterproof and drainage board.
3、Waterproofing treatment: After laying the waterproof and drainage board, waterproofing treatment should also be carried out. For example, applying waterproof paint or laying waterproof membrane on the board surface can prevent moisture from penetrating under the board.
三. Inspection and protection after construction
1、Inspection and acceptance: Check the laid waterproof and drainage board to ensure that its quality meets the requirements. If problems are found, they should be dealt with and repaired in time. The inspection contents include the laying position, overlap length, connection method, waterproof treatment, etc. of the waterproof and drainage board.
2、Finished product protection: After the construction is completed, the waterproof and drainage board should be protected to prevent it from being damaged or contaminated. In the subsequent construction, no impact or scratch should be caused to the waterproof and drainage board. Warning signs should be set up in areas where waterproof and drainage boards have been laid to prevent irrelevant personnel from entering.
3、Backfilling and covering: After the waterproof and drainage board is installed, it is necessary to backfill earthwork or cover other materials in time. During the backfilling process, the compactness of the earthwork should be controlled, and the waterproof and drainage board should not be damaged. The selection of backfill materials must also meet the design requirements to ensure the smooth flow of the drainage system.
四. Construction precautions
1、Construction personnel: Construction personnel must have certain professional knowledge and operational skills, and be familiar with the performance and usage of waterproof and drainage boards.
2、Construction environment: The construction environment should meet the construction requirements, such as temperature, humidity, etc. Under severe weather conditions, construction should be suspended to prevent the quality and performance of the waterproof and drainage board from being affected.
3、Quality control: During the construction process, the construction quality should be strictly controlled. After each process is completed, quality inspection must be carried out to ensure compliance with design requirements.
It can be seen from the above that during the construction process, the waterproof and drainage board must be operated in strict accordance with the design drawings and construction specifications to ensure the construction quality. It is also necessary to strengthen the training and management of construction personnel, improve the construction level, and contribute to the project construction.
Post time: Mar-10-2025
