Corporate News

Asphalt wood wool board for construction joints - introduction to the characteristics of asphalt wood wool board 1. Long service life: it can be used for a long time without corruption when placed in the component. 2. High elasticity: the infrastructure will not be damaged by its own stress when it is deformed due to the change of ambient temperature. At present, many domestic infrastructure projects are often expanded by its own stress due to the improper use of materials in expansion joints, or the materials are not elastic enough, and the cracks will expand when they shrink with the entry of dust and other impurities and then expand again. 3. Waterproof: after installation, it can prevent water from entering the component through the contraction joint, scouring the foundation layer of the infrastructure, resulting in unbalanced stress of the infrastructure

2024/08/20 15:25:25

Use of double wall perforated semi-circular permeable pipe: 1. tunnel drainage. 2. Metro tunnel drainage. 3. Waterproof culvert drainage. 4. High speed railway tunnel secondary lining drainage.

2024/07/27 15:55:39

The water swelling rubber waterstop increases the tightness between the waterstop and the structure after the water swelling, thus improving the waterproof performance of the waterstop. Therefore, the water swelling rubber waterstop solves the surrounding leakage problem that has puzzled people for a long time, and has good use effect. This product is mainly used in the foundation engineering integrated with the concrete structure, such as underground facilities, tunnel culverts, water conveyance aqueducts, water retaining dams, liquid storage structures, etc., which are set in the construction joints and deformation joints when the concrete is poured in situ. The rubber waterstop belt needs to be used together with the two-component polysulfide building waterproof sealant. It is produced under various loads by taking advantage of the high elasticity and compression deformability of rubber

2024/07/13 16:34:06

Material characteristics of semicircular drain pipe: (1) High carbon steel wire is treated with rust prevention, and PVC is covered to prevent corrosion. The unique steel wire spiral skeleton ensures that the pipe wall surface is flat and bears external pressure (2) The non-woven filter layer ensures effective filtration and prevents sediment from entering the tube. (3) High strength polyester. Warp line is made of high-strength polyester fiber PVC. The weft thread uses special fibers to form sufficient tensile strength. 100mm spring semicircle drain pipe can be used for large-area drainage of hydraulic reclamation and flood prevention works. The spacing of branch ditches in large areas is generally 10~15m, 5~10m for sports fields, and 10~10m for subgrade

2024/07/11 11:45:46

Water conservancy rubber waterstop is made of rubber and various synthetic rubbers as the main raw materials, mixed with various additives and fillers. After plastic refining, mixing and pressing, it has many varieties and specifications, including bridge type, mountain type, P type, R type, U type, Z type, B type, T type, H type, E type, Q type, etc. The water stop material has good elasticity, wear resistance, aging resistance and tear resistance, strong deformation adaptability, good waterproof performance, and the temperature range is - 45 ℃ - 60 ℃. The product shall not be used when the temperature exceeds 70 ℃, and the product is strongly oxidized or corroded by organic solvents such as oil. 651 medium buried rubber stop

2024/07/05 14:03:03

The spring flexible 100mm semicircular drain pipe adopts a composite geomembrane cover, which greatly enhances its impact resistance, and completely solves the problem of blocked drainage caused by the broken pipe surface during shotcrete construction and the blockage of sediment or crystals entering the pipe. Compared with other types of drainage pipes, this product has better anti leakage effect in construction, no future trouble, convenient transportation, low cost, convenient construction, and brings better benefits to the construction unit. The specifications are 50mm and 100mm. Layered and buried in batches, which can adapt to the gradual deformation of surrounding rock; Prevent the surrounding rock mud and sand from flowing directly into the drainage pipe to cause blockage; Due to the "drainage is open..."

2024/06/16 13:48:02

Operation conditions of EVA waterproof coiled material drainage board hot-melt gasket: (1) 50cm horizontal line has been snapped on the indoor wall. (2) The riser passing through the floor slab has been completed, and the pipe opening is tightly blocked. (3) Doors and windows have been installed and protected, and boards or iron sheets are nailed inside the door frame. (4) When the base course is precast concrete slab, the slab joint concrete shall be filled tightly, and the slab end gap shall take anti crack measures. (5) The operators shall conduct safety and technical disclosure and make written records. Precautions for construction of capillary EVA waterproof board hot-melt gasket: find the elevation and snap the line: measure downward according to the wall benchmark (50cm benchmark)

2024/06/14 17:30:33

Generally, the design perimeter of the anti ultraviolet geomembrane pipe bag is about 8~30m, and the length can be flexibly set according to the size of the dewatering site, ranging from 30 to 60m. However, the length should not be too long. If the length is too long, it will be difficult to keep the pipe bag straight in the horizontal direction during filling. After the pipe bag swings and moves, its internal effective volume will be reduced, and it will take up additional space for dehydration. The larger the geotechnical pipe bag (the larger the perimeter size), the larger the filling volume of the pipe bag, and the sludge dewatering cycle will also increase. The diameter of the pipe bag filling mouth is usually 0.2~0.4m, and the sleeve length of the filling mouth is

2024/06/12 16:40:32

[Joint method of medium buried rubber waterstop] There are two joint methods of medium buried rubber waterstop: one is cold joint with adhesive, the other is hot joint with hot vulcanization mold. The following two joint methods are introduced respectively: the adhesive cold joint is to use the rubber waterstop cold joint glue, and the lapping method is to use the polishing machine to smooth the section of the waterstop that needs joint by 5-10cm, and the glue can be applied and compacted. It has the advantages of high strength, fast solidification, convenient construction, time and labor saving, and can meet the general engineering quality requirements. On site hot vulcanization method joint is to use hot vulcanization mold matching with waterstop and raw rubber on site vulcanization heat

2024/06/09 16:31:16

Plastic foam closed cell foam board to use the joint plate of concrete highway expansion joint; Road and bridge joint waterstop; Expansion joint plates for dams, revetments, stilling ridges, slope protection and retaining walls of hydraulic projects; Water stop joint plate at the bottom of hydropower, thermal power, engineering and water tower; Make settlement joints and caulking plates for frame structure; Water stop caulking board for water pool of domestic water plant and sewage treatment plant; Joint plate of airport runway; Joint plate of port, wharf and concrete; Water passage joint plate of water tunnel and tunnel concrete; Concrete waterstop joint plate for subway and underground passage. Technical requirements for construction of waterproof closed cell foam board: 1. closed cell polyethylene plastic foam board

2024/06/05 15:24:48