Bridge expansion joints installed [after] fixed, according to the design drawings for banding and welding their embedded reinforcement and structural steel, welding joints anchor bars in order to reduce the local concentration of heat deformation of joints, welding using jump Plum manner. Joints fixing process while welding seam side adjustment, then the self-test before the concrete casting and invite professional supervision engineer acceptance. When the inspection program are to meet regulatory requirements error tolerance value, the joints latch opens allowing free expansion joints. Finally, the bridge (face) expansion joints, seams intermediate packing foam board. [] In-situ concrete bridge expansion joints using C50 STEEL FIBER concrete, concrete mixing station according to the design requirements and test preparation materials in advance and make the concrete test with the test to determine the mixing ratio, after the final approval by the Commissioner, the modulus type bridge (surface) expansion joints before opening production. [] Concrete bridge expansion joints transported to the construction site by a tanker, manually vibrated concrete pouring construction of the interface can not be contaminated, ahead of all kinds of protective preparations. After the vibration compacting concrete, with plaster board Cuochu grout, divided 4-5 times the conventional wiping pressure level so far. This process should pay special attention to the flatness of the concrete surface is slightly lower than the top surface of the asphalt pavement 1-2mm appropriate, too high or too low will cause jumping phenomenon. And making health test block synchronization. After the initial setting of concrete covering sacks or grass thatch child, strict sprinkler maintenance, conservation of not less than seven days, cut off traffic, GB-type bridge (surface) joints during health, and banned all people, storage, vehicle tread, rolling. After the bridge expansion joints [] After curing, the cement concrete strength more than 50% of the design strength, install the rubber seal, must serve as a template of foam board seam prior to installation, fiberboard, plasma leakage of concrete lumps all dig clean, embedded rubber. [Bridge] combination shear joints (plate) rubber expansion means the device is the use of various cross-sectional shapes of the rubber band as a caulking material telescopic device. The rubber elastic, easy to paste, but also to meet the requirements and have the waterproof deformation. Thus, in the domestic and foreign bridge engineering it has been widely used. [Bridge expansion joints] modulus telescopic device supporting plate rubber products in this category telescopic device, it is difficult to meet the requirements of a large amount of displacement; steel type of telescopic device, it is difficult to achieve watertight seal, and likely to cause the vehicle impact, the impact of the vehicle driving. Therefore, there has been a good performance and easy to use shock-absorbing cushion so that sealed rubber material, and the strength of high-performance good shaped steel combination, in the case of a large amount of displacement can withstand all kinds of die number of vehicle load-bearing (Modular ) bridge expansion series. [] Elastomeric bridge expansion joints telescopic device elastomer telescopic device into zinc metal joints and TST gravel expansion joint, elastomer telescopic device is a simple means of expansion joints, the small span of the bridge, when the amount of stretching When 20mm-40mm TST gravel can be used within the elastic expansion joint device, hao bridge (side) joints, after the TST special elastic-plastic material melted by heating, the heating of gravel poured into the cleaned, that form the TST Flexible joints gravel, gravel to support the vehicle load, TST elastoplastic body at a 25 ℃ ~ 60 ℃ condition to meet the amount of stretching requirements. C-type bridge (surface) expansion joints, bridge (face) expansion joints, rubber Guangrun by-Engineering Rubber Co., Ltd. Hengshui. Hengshui-Engineering Rubber Co., Ltd. (www.grgcxj.cn) (www.grgcxj.cn) strong, credible, Hengshui in Hebei site construction materials industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Guangrun Rubber Company into the brilliant and you work for a better future!