Industry trends

Product type water expandable waterstop parameters 1. Model: the model of product type water expandable waterstop is generally determined by the manufacturer, and is named according to material, size, application field and other factors. Common models include WGT, HW, etc. 2. Size: the size of product type water swelling waterstop shall be determined according to specific construction requirements, generally including width, thickness, length and other parameters. Common dimensions include width 30mm-800mm, thickness 1mm-8mm, length 5m-30m, etc. 3. Expansion multiple: the expansion multiple of the product type water expandable waterstop is how many times it can expand after encountering water

2024/04/18 07:57:41

1、 The basic concept of bridge expansion joint The bridge expansion joint refers to the gap set between the bridge beam end and abutment or between the beam end and the beam end in order to meet the needs of the longitudinal deformation of the bridge. It can absorb the displacement caused by temperature change, load action and other factors of the bridge, so as to ensure the normal use of the bridge. 2、 Types of bridge expansion joints The bridge expansion joints can be classified according to their structure, materials, installation methods and other factors. Among them, the common types are: 1. galvanized iron U-type expansion joint: this kind of expansion joint has the advantages of simple structure, convenient installation, low price, etc., but it is vulnerable to corrosion and has a short service life

2024/04/17 08:18:55

Features of polysulfide sealant The polysulfide sealant used in the tunnel has the following characteristics: 1. The highly elastic polysulfide sealant has high elasticity, and can maintain stability and sealing under the condition of vibration and deformation. 2. Chemical resistant polysulfide sealant has good chemical resistance and can maintain stability in harsh environments such as acid and alkali. 3. Weather resistant polysulfide sealant has good weather resistance and can be used for a long time in extreme environments such as high temperature, low temperature and ultraviolet ray. Application of polysulfide sealant The polysulfide sealant used in tunnels is mainly used in the following aspects: 1. The adhesion and sealing of tunnel floor and tunnel mouth

2024/04/16 07:43:26

High damping isolation rubber bearing is a new type of isolation bearing with energy dissipation performance, which has been applied to bridge seismic isolation control. In order to study the hysteretic performance of this new type of isolation bearing, the high damping isolation bearing used for a highway bridge was selected for vertical compression and horizontal shear loading tests. The results show that the hysteretic curve of high damping isolation rubber bearing is relatively full, and its energy dissipation effect is good, and its energy dissipation capacity does not decrease after repeated cyclic loading; The loading frequency is

2024/04/15 07:51:01

At present, the sealing and waterproof level of urban pipe gallery and subway tunnel engineering is very high, and the performance standards for waterproof materials are also strict. The physical properties of the product type water swelling waterstop and its principle of repeated expansion meet the application requirements of this construction project. The product type water swelling waterstop will gradually expand after encountering water, and the expansion can be controlled manually. On the one hand, it can plug the capillary pores that may exist to achieve the purpose of water sealing, on the other hand, it can make the concrete interface contact more closely, thus generating greater water resistance pressure, forming impermeable plastic gel. Hebei Taohe Rubber and Plastic Products Co., Ltd

2024/04/12 08:03:00

There are two types of polyethylene closed cell foam board, L-1100 and L-600. Both are different in appearance and performance. Compared with L-1100, L-600 is darker, L-1100 is grayish black, and L-600 is black. L-600 foam board has better hardness and toughness, better recovery rate and stronger compression resistance. Therefore, L-1100 is generally used as the caulking plate of ordinary cement pool, and L-600 can be used as the water stop caulking plate of reservoir dam. The performance of L-600 is much better than that of L-1100

2024/04/10 15:57:29

Type 652 medium buried rubber waterstop is equipped with deformation holes in the middle, and waterproof lines are symmetrical on both sides. It has high hardness, tensile strength, elongation at break and other characteristics. This product is a water stop product made through four steps of plastic refining, mixing, vulcanization and molding. The commonly used specifications of 652 medium buried rubber waterstop are 300 * 6mm, 350 * 8mm, etc. The details are as follows: The application scope of 652 medium buried rubber waterstop includes: retaining dam, reservoir, subway, culvert, tunnel, etc. This kind of project is easy to deform or cannot be poured continuously due to its foundation, or the concrete has thermal expansion

2024/04/10 08:34:35

Rectangular plate rubber bearing: rectangular plate rubber bearing. Circular and rectangular plate rubber bearings have been widely used in bridge construction, hydropower engineering, building seismic and other facilities. Compared with the original steel bearings, they have simple structure and easy installation; Steel saving and low price; It has the advantages of simple maintenance, easy replacement, and low building height, which is beneficial to bridge design and cost reduction; It has good isolation effect and can reduce the impact of live load and seismic force on buildings. The rectangular plate rubber bearing is an important part of the bridge structure, and it is often a part that is not paid enough attention in the design, especially the structural design of the bridge

2024/04/09 08:02:00

General name of product type water swelling waterstop: PZ product type water swelling waterstop, BF product type water swelling waterstop, and water swelling rubber product type water swelling waterstop have four expansion rates: 150%, 250%, 400%, and 600%. The product type water swelling waterstop is different from ordinary rubber products. It is vulcanized and molded, with excellent resilience, extensibility, and elastic sealing water stop function. It can also expand in water to stop water. PN putty type water swelling waterstop is a new type of waterstop successfully developed on the basis of foreign products for concrete construction joints and post pouring joints

2024/04/08 08:35:26

The waterstop can be divided into rubber waterstop, plastic waterstop and steel plate waterstop according to different materials. Rubber waterstop is widely used in the project. This paper discusses the mechanism, characteristics, construction precautions and other aspects of rubber waterstop, so as to reduce or eliminate the impact on the use function of buildings due to the quality problems of rubber waterstop during the project construction. Common problems and treatment methods of 651 type medium buried rubber waterstop The quality of building waterproofing directly affects its use function. Building waterproofing is generally divided into the following categories: 1. Self waterproofing: that is, use impermeable concrete and other materials to enhance self waterproofing

2024/04/05 11:58:14