Industry trends

BW-96 slow expansion water swelling waterstop is a new waterproof and impermeable sealing material successfully developed on the basis of foreign products for concrete construction joints and post pouring joints. BW-96 slow expansion water swelling waterstop features 1. This type of waterstop has high expansion ratio, strong movement and supplement, strong balance and self-healing function after being placed in the construction joint, and can self seal new micro cracks due to settlement. 2. For the completed project, if there is leakage in the gap, the waterstop can be used to plug the leakage again. 3. The product can expand after encountering water to achieve the effect of water stop. 4. To

2024/06/13 15:54:16

High damping building isolation rubber bearings not only have all the functions of plate bearings, but also have good isolation functions, which can effectively reduce the damage to bridges caused by earthquakes. High damping rubber bearing is one of the isolation rubber bearings. The rubber used is made of high damping rubber material, which can make the damping ratio reach 10%~16%. Its shape and structure are the same as those of natural rubber bearings, but its rubber material is viscous, can absorb energy itself, has greater ductility, can extend the natural vibration period of the structure, reduce the force of seismic effect, and use its energy dissipation characteristics to play a seismic isolation effect, reaching the lead core sandwich rubber bearings

2024/06/13 15:31:10

Construction projects are divided into special fortification, key fortification, standard fortification and moderate fortification according to the use function, role in earthquake relief and other factors. Buildings such as schools, kindergartens, hospitals, elderly care institutions, children's welfare institutions, emergency command centers, emergency shelters, radio and television should take seismic fortification measures in accordance with the requirements of not less than the key fortification category. Newly built schools, kindergartens, hospitals, elderly care institutions, child welfare institutions, emergency command centers, emergency shelters, radio and television and other buildings located in high intensity fortification areas and key earthquake surveillance and defense areas shall be separated according to the relevant regulations of the State

2024/06/13 15:12:02

As the connection between bridge and pier or abutment, bridge bearing bears many key functions. First, it can transfer the vertical and horizontal loads on the bridge to ensure the stability and safety of the bridge structure. Secondly, the bridge bearing can adapt to the expansion deformation of the bridge caused by temperature changes, vehicle driving and other factors, and reduce the stress concentration and damage risk of the bridge structure. In addition, the bridge bearing also has the function of absorbing seismic energy and reducing the damage degree of the bridge in the earthquake. There are many types of bridge bearings, such as pot rubber bearings, plate rubber bearings, etc. Pot type rubber bearing is a combination of steel components and rubber

2024/06/07 15:02:55

1. Water stop principle: water stop is a belt made and installed to prevent water penetration, with a width ranging from 200 to 350. It is selected according to the design, and the seepage diameter is appropriately extended. During the concrete pouring process, part or all of it is poured into the concrete, with a certain strength and toughness, which is between the water stop bar and the water stop steel plate. 2. Advantages: 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 ℃. 3. Disadvantages: There are many sharp stones and sharp steel bars in the concrete, because the plastic

2024/06/04 09:34:53

The water swelling waterstop is made of bentonite with excellent performance as the basic material. Through physical and chemical modification, it not only has the function of water absorption and expansion, but also has the elasticity of general elastomer. When used under constraint conditions, it can completely stop water and leak, and has a very good effect. First of all, it introduces the advantages of the downward expansion waterstop: the product has good comprehensive performance, which has the characteristics of both general rubber products and self expansion when encountering water. At the same time, the water swellable waterstop is a new type of waterproof material. The water stop and waterproof effect are more reliable than ordinary rubber. Water swellable waterstop has good weather resistance, slow aging, anti-seepage, leak stop, corrosion resistance, convenient construction and low price

2024/06/03 17:12:10

As for the continuous device on the bridge deck, it is also called ECS device, or continuous expansion joint on the bridge deck, waterstop on the bridge deck, etc. From the picture below, we can see that it is a flexible waterproof material that combines rubber and steel bars and integrates steel bars and rubber. We can understand its application position from the literal "bridge deck". It is used on the bridge. Most of the bridge decks have expansion joints, so the role of expansion joints need not be explained too much here. This bridge deck continuous (ECS) device is used for waterproofing and sealing of expansion joints on construction bridges. Its reinforcement part is integrated with the bridge deck concrete, and the rubber part in the middle is

2024/06/03 16:49:24

1、 The working principle of the expansion waterstop is a kind of sealing strip made of rubber, polyurethane and other materials. Its principle is to seal the gap by making use of the property that the volume of its interior is reduced after being compressed. When using expansion waterstop for construction, it is first necessary to plug it into the gap of the building, and then use high-pressure grouting to fill the material tightly into the gap. With the increase of grouting pressure, the expansion waterstop is gradually compressed and its volume is reduced, thus sealing the gap and playing a waterproof effect. 2、 The application of expansion waterstop in hydraulic construction

2024/05/31 08:06:54

Polyethylene closed cell foam board is a kind of high-performance material widely used in packaging, construction, health, electronics, automobile and other fields. It is made of porous foam plastic with a closed porosity of more than 95%, and has excellent heat insulation, sound insulation, moisture resistance, chemical corrosion resistance and other characteristics. Ordinary closed cell foam board Ordinary closed cell foam board is the most common type of polyethylene closed cell foam board, which has excellent thermal insulation performance and low water absorption. It is mainly used for the external wall insulation of buildings, roof waterproof insulation, refrigeration storage insulation, etc. 2. Fiber reinforced polyethylene closed cell foam board

2024/05/29 18:31:54

The model of neoprene rod is distinguished by the diameter of the rubber rod. When selecting the neoprene rod model, it needs to be selected according to the size of the gap. If the gap is about 20mm, 30-40mm neoprene rod should be selected. Some friends will ask why to select a model larger than the gap. In fact, when the gap changes, When the neoprene rod is too small or consistent with the gap, the neoprene rod will fall into the gap, which will lead to water leakage. The neoprene rod does not have the corresponding effect. Therefore, it is necessary to select a neoprene rod that is more than 1cm larger than the gap. This is to reserve the gap in advance

2024/05/28 18:29:32