Splicing Method for Improving Construction Quality of Geomembrane
Generally speaking, composite geomembrane is usually used as an anti-seepage material for buildings. The key to determining the success or failure of the anti-seepage performance of composite wholesale textured geomembrane is the quality of the splicing. Can stitching improve the quality of construction?
The splicing method is usually constructed by hot melt welding. The membrane and the membrane are generally welded by a dual-drive self-propelled wholesale environmental geomembrane welding machine. The welding seam overlap width is 10cm. There is a cavity of 10mm width between the two welding seams. Portable sealing machine, polyester thread T-shaped seam.
Note that before formal welding, test welding should be performed according to the climate characteristics of the construction area to determine the walking speed and welding temperature. During the construction process, the walking speed of the welding machine should be controlled at 0.8 ~ 1.2m / s, and the welding temperature should be 240 ~ 260 ℃, to ensure that the welding quality of the composite aquaculture geomembrane manufacturers meets the design requirements.
Before welding, it is best to lay a long wooden board under the seam of the geomembrane, so that the welding machine can walk on the flat base surface to ensure the welding quality. In addition to the quality of the materials, in order to further improve the performance of the composite high quality aquaculture geomembrane, it must be done during construction.
Generally, in order to facilitate the construction and ensure the quality of the splicing, the composite geomembrane generally adopts a wide width to reduce the amount of splicing on-site. Before construction, according to the needs of the material width and the length of the site, the appropriate length should be cut in the factory first, and then spliced into blocks that meet the required size and rolled into rolls.
In addition, it should also be noted that when construction is carried out, a non-composite layer of about 10 cm should be reserved on both sides to facilitate the lateral connection of the high quality environmental geomembrane. Generally speaking, the place where the geomembrane is easy to be damaged is at the joint of the welded area and the geomembrane, so we should pay special attention to this part in the construction of the weld.
Many people are not very clear about the difference between geotextile and environmental geomembrane manufacturers when they are used, so many people think that the two are actually an article, so today we will start from the application mechanism and application scope Let’s talk about the differences between the two.
1. Main mechanism: LDPE geomembrane for sale is an impermeable plastic film to cut off the leakage path of the earth dam, with its large tensile strength and elongation, it can withstand the water pressure and adapt to the deformation of the dam body; Molecular short fiber chemical material, formed by needle punching or thermal bonding, has high tensile strength and extensibility. It combines with plastic film to increase the tensile strength and puncture resistance of the plastic film, due to the non-woven surface Roughness increases the friction coefficient of the contact surface, which is beneficial to the stability of the protective layer.
2. Scope of application: Different geotextiles play the role of strengthening, strengthening, isolating, separating, filtering, draining, and stabilizing in the project. high quality LDPE geomembrane is mainly used in projects with high anti-seepage requirements such as anti-seepage isolation, reinforced anti-cracking, and reinforced horizontal drainage. The two can work alone, or they can be combined into one and play their respective strengths together.
The combination of the two can form another common geomembrane composite LDPE geomembrane manufacturers. The general type four includes one cloth one film and two cloth one film. The combination of the two makes the reinforcement and anti-seepage performance stronger. It also has good resistance to bacteria and chemicals, as well as acid and alkali salts.