The geotextile cushion should be laid on a clean base surface
When using an electric welder for welding, the joints on both sides must be clean and tidy, and no bubbles, wrinkles, and gaps are allowed to affect the welding quality. In order to determine the welding speed and temperature of the double-weld hot-melt automatic welding machine, it must be carried out before the formal welding.
Trial welding. The overlap of the board must use a double welding seam climbing welder, and the vertical and horizontal overlap of the board must be welded with an additional waterproof board to enhance the high quality polypropylene nonwoven geotextile. It should be noted that all welds and their positions should meet the requirements of the specification, so as not to cause the sheet to fall off due to weak welding and affect the waterproof effect. After welding, it must be checked with a leak detector. The specific operation is to block one side of the air duct and pressurize the air from the other end. If the pressure reaches 0.2 ~ 0.5 MPa, it is qualified. Otherwise, repair welding should be carried out.
Before laying the waterproof board, the geotextile cushion should be laid on a clean base surface from the vault to both sides. The length of the nails to fix the polypropylene nonwoven geotextile manufacturers shall not be less than 50 mm, with an average of 3 to 4 vaults/㎡ and 2 to 3 side walls/㎡.
According to design requirements, the waterproof board should be laid in a fixed direction. An ultrasonic welding machine should be used to melt the waterproof board to make it tightly adhere to the plastic gasket of the buffer layer. When laying, the dome waterproof coiled material should be welded and fixed on the dome with the gasket, and then the waterproof coiled material should be laid from the dome to both sides. Pay attention to the close adhesion with the filament nonwoven geotextile factory price when laying to enhance the waterproof effect. If the base or cross-section is not uniform, fixed points should be appropriately increased.