One. Specification of hot-melt gasket for waterproof board: height 7mm. 70mm dia. Weight 10 g. The bonding tool is a magnetic welding machine. The welding temperature is 230 ℃.
Article 2. Terms of payment, destination (port) and cost burden: the processing party shall bear the transportation costs, and Guiyang City shall collect them by itself.
Three If the ordering party has any objection to the quality of the goods, within three days from the date of receiving the goods
Installation instructions for eva waterproof board hot-melt pad of highway tunnel:
1. Constructor: responsible for following the design Instruct the construction team;
Technical director: adjust operation methods according to design requirements and construction conditions. Guidance, inspection and construction;
Quality inspector: check the construction quality according to the design requirements.
2. Construction tools: magnetic welding machine, nails, hammers and other tools.
3. Installation: The hot-melt gasket shall be installed in quincunx shape. The vertical spacing shall not be more than 80cm, each roll of waterproof board in the horizontal direction shall not be less than 3, and the vertical and horizontal spacing at the top of the tunnel shall be less than 50cm. The waterproof board and hot-melt gasket shall be pasted at an angle of 45 ° and rubbed with hands outside the waterproof board to make them fully fused. During welding on the top, two operators shall hold the waterproof board and cool it with wet cloth to avoid falling of the waterproof board when it is not cooled.
Precautions for installing hot melt gasket:
1. Fix the hot-melt gasket Geotextile The projection of the nail tail shall be avoided to prevent puncturing the waterproof board.
2. During hot welding, 60% of the hot air sprayed by the hot air shall be aligned with the hot-melt gasket within a 45 degree angle to prevent the waterproof board from melting first and causing damage to the waterproof board.
3. The temperature shall be controlled within 5 to 10 seconds, and the operator shall be encouraged to adjust the corresponding hot melting time according to the actual situation of the construction site. Remember that the time should not be too long to prevent the waterproof board, hot melting gasket, geotextile from melting, resulting in unacceptable process and unnecessary loss.
4. The hot-melt gasket and waterproof board shall be fully hot-melt during hot welding.
The test welding environment shall be the same as the production welding. When any test welding block fails to pass the crack test and shear test, all the test welding shall be redone.
