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Site cleaning of river waterproof geomembrane: (1) The site of the anti-seepage membrane laying area in the site area shall be cleaned, compacted and leveled, especially weeds, sundries, surface soil, trees, bamboo, etc. shall be removed, deep roots of plants shall be removed manually or mechanically, and hard objects cleared shall not be buried at the bottom of the reservoir; (2) Clay shall be used as the filling soil for the impervious membrane base course, and shall be compacted layer by layer, with the compactness not less than 94%. The particle size and evenness of backfill shall meet the specification requirements; (3) For the rock area with large edges and corners, before laying the anti-seepage membrane, the rock shall be leveled and cleaned first, and then be plastered with M5 or 1:2 cement mortar

2024/08/15 15:45:24

General requirements for laying EVA tunnel anti-seepage membrane hot-melt gasket (1) The material specification and quality of PVC geomembrane hot-melt gasket shall meet the design requirements and relevant standards; (2) The hot melt gasket of EVA waterproof coiled material shall be laid flat without wrinkles; (3) The slope of anti-seepage geomembrane shall be anchored; (4) There shall be no transverse joints within 1.5m of the slope surface and slope toe with a gradient greater than 10%; (5) When paving on the slope, there should be no horizontal joints, and the joints should be from top to bottom; (6) The joints should be set at the plane, and should avoid turning points; (7) The construction quality control of anti-seepage membrane laying includes the construction operation process

2024/07/20 15:01:11

PVC waterproof board hot-melt gasket performance; 1. After the auxiliary waterproof function drainage coiled material is laid, a new waterproof layer is formed due to the adhesive hot joint form, which has both the drainage function and the secondary waterproof function. 2. The waterproof coiled material with ordinary root separation function does not have the root separation function, while the PVC coiled material has strong root separation because of its high density. The thickness of the membrane can be adjusted according to the root separation requirements to achieve the root separation effect. 3. It can not only be bonded but also hot spliced. Because the PVC material is of amorphous structure, the use of special glue can effectively destroy the surface structure of the material so that the two layers of film can be effectively fused together, playing a waterproof root separation function. It can also

2024/07/12 16:49:48

EVA waterproof board hot-melt gasket is a professional injection molding accessory product, which is indispensable in some important projects. Although it is not often seen in our life, it plays a very important role. This high-quality accessory product is a hot-melt round gasket with a certain specification for waterproof board made of high molecular material (low-density polyethylene) injected at high temperature through a special mold. This gasket product is widely used in water conservancy, highway tunnels, waterproof rolls Geotextiles shall be installed and fixed for use. Now, the hot-melt gasket of waterproof board is on the market

2024/06/30 18:10:34

Inspection standard for double wall hdpe semicircular drainage bellows; The ripple and color of the outer wall are uniform and consistent, and no bubbles meet the requirements. 2 ring flexible. When the deformation of the outer diameter in the vertical direction is 15% of the original outer diameter, unload immediately. The sample is smooth, without reverse bending and cracking. 3 The oven test temperature is 110 ± 2 ℃, and it is placed for 15min, without layering, bubbles No cracking meets the requirements. 4 Falling weight impact test KN/m29/10 No cracking 10/10 No cracking 5 Static friction coefficient ≤ 0.350

2024/03/16 17:13:44

Disposal of dehydrated pvc waterproof coiled material drainage board hot-melt gasket: after the sludge in the pipe bag is dehydrated and reaches the designed water content target, the geotextile pipe bag can be directly covered with earth in situ for landfill, and the stacked geotextile pipe bags can play a role in stabilizing the soil layer, whose principle is similar to the reinforced geotextile added in the construction of municipal roads. When the dewatered sludge in the pipe bag needs to be treated in a different location, it is necessary to use construction machinery to break the geotechnical pipe bag, and transport the broken pipe bag and the sludge together for landfill or incineration. EVA waterproof board is usually divided into two types: 1. Separated EVA waterproof board: geotextile and waterproof board are laid in layers, waterproof board and geotextile and tunnel anchor rod

2024/02/28 15:06:13

The reverse laying and welding technical scheme of composite geomembrane is as follows: 1) the membrane is laid normally; 2) Fold back the edge of the film to be welded, and the folding width is about 50cm; 3) Do not open the second diaphragm in rolls, move it onto the diaphragm, align the edge to be welded with the edge to be welded, and then open the second diaphragm; 4) Adjust the specific overlapping width of the two diaphragms and wipe the welding surface. The specific method is the same as that in Article 5; 5) While wiping, fold back the upper and lower cloth edges of each film to the inside as much as possible. If the edge of the cloth bounces outward due to elasticity after folding, it is better to use transparent tape or the like

2024/01/31 16:33:53

Application fields of carat double wall perforated hdpe drainage corrugated pipe: large airport, port and wharf projects; drainage and sewage pipes of large airport, port and wharf projects; Municipal engineering: used for municipal underground drainage, sewage discharge, rainwater collection, water transmission, ventilation, etc; Road works: used as seepage and drainage pipes for roads; Construction works: building rainwater pipes, underground drainage pipes, sewage pipes, ventilation pipes, etc; Water conservancy projects: use of water source pipes, irrigation pipes and water conveyance and drainage of hydropower stations; Communication pipe: highway communication, communication cable, optical cable protection pipe; Agricultural engineering: farmland, orchard, tea garden and forest belt irrigation and drainage

2024/01/30 11:30:19

EVA waterproof board hot-melt gasket, special waterproof material for subway, and hanging tunnel waterproof board are used to achieve hanging hanging without through nails, which is completed in one time. It can greatly simplify the construction difficulty of traditional waterproof materials in tunnels, improve the laying efficiency, shorten the construction period, and significantly reduce the comprehensive cost of the project. Customized hot-melt gasket for high-speed railway tunnel Hot melt gasket for tunnel waterproof board Hot melt gasket PE welding bond corrosion resistance and wear resistance EVA hot-melt welding gasket One time grouting disc 3D anti-seepage geomembrane Hot melt gasket Note: 3D composite drainage network is a new drainage geotechnical material. High density polyethylene (HDPE) as raw material, after special

2024/01/02 19:34:21

Construction process of hot melt gasket for tunnel PVC waterproof board: 1. process setting out at wall position → wall foundation construction → installation of ground keel → installation of top keel → installation of vertical keel, transverse keel, through keel → reinforcement of various portal keels → installation of gypsum board → putty construction and pasting of glass fiber tape and kraft paper at the same time → wall paint construction 2. Before installation of partition keel, First, snap a line at the connection of the upper, lower and two sides of the base according to the width of the keel for positioning. The snapping line is clear and the position is accurate. According to the design requirements, the position of vertical keel, cross brace and additional keel shall be determined in combination with the length and width grading of the cover plate. During installation, the side line of keel shall coincide with the snap line. 3...

2023/11/19 14:04:20