Bridge with in-mold: foam board and construction methods and advantages of rubber bladder

Polystyrene foam board construction cracks in concrete construction method (1) first concrete pouring for the construction side seam. Before pouring the first rubber seal is fixed to the design position, according to the design size back 1 cm formwork, and to maintain a rigid template, strength, stability requirements, concrete pouring at construction joints nearby should ensure that vibrated dense but avoid excessive vibration, and guarantee rubber water-pouring process offset does not exceed the specification. (2) The initial setting of concrete construction joints after the removal of the template, and pre-processed promptly closed-cell foam, with a suitable length of steel nails in the side seam concrete construction, and set aside 3 cm height at the top of the closed-cell foam board , then 3 cm high from top to bottom of closed-cell foam plank with a nail fixed to the lower portion of closed cell foam board (the polysulfide sealant filling reserve position), followed by the other side of the concrete pouring. (3) concrete reaches a certain intensity, set aside 3 cm high excluding closed-cell foam plank, will be reserved for seam clean and inking whole joints on both sides, two ink line spacing slightly over expansion joints width and ink lines along the outer seal affixed duct tape (above approach allows joints straight appearance). Rubber balloon in the cracks of the concrete construction method 1, before using rubber balloon, first check the steel cage wire connectors and wire rolling head can not be bent toward the inner diameter direction, in order to avoid pricks mandrel to form an air leak. 2, the first concrete pouring steel cage bottom cushion, then pull rope rubber balloon to the steel cage, and the longitudinal seams facing up. 3. Open the rubber balloon inflated to a predetermined pressure valve to close the valve, should not be over-pressure. 4, shaped rubber balloon should be alternately inflated through a predetermined pressure. 5, will enter a steel cage of rubber balloon to be fixed up and down. Overcome the buoyancy and move around. 6, after the pouring of concrete, from both sides at the same time using a vibrating rod vibration, prevent the rubber balloon move around. And the vibrator section head not touch the rubber balloon, so as not to puncture the leak. 7. After the initial setting of concrete, open the bleed valve, you can extract rubber balloon. (Demold time customized according to the construction situation) than the closed-cell foam rubber bladder and steel templates advantage lies: When using air floating rubber bladder, wider at the meeting of the mold shape, this will cause the bridge and down the cement thickness varies , thus affecting its overall toughness and strength; high cost of steel formwork words, installation is relatively time-consuming, but some can not be used in a specific shape steel bridge template. However polystyrene foam board solves these problems, the foam board as needed, through a particular processing technology, cutting down into any shape, in a complex shape can be the lingua franca of the bridge. Also, foam board easy to use, do not take out, time-saving, time-saving project. Bridge with polystyrene foam board to solve the shortage of endometrial bridge slab and precast inflating capsule floating roof thickness technical problems, bridge hollow slab of polystyrene foam used instead of air-filled capsule, to ensure that the in-mold positioning accuracy and structure design size intact. Currently, our national policies to support the industry are also strongly encouraged the use of such molds highway construction alternatives. For example, our high-speed civil Henan Huai solid two standard, solid high-speed civil Henan Huai three standard, Henan Huai solid four-speed civil standard, Henan Huai solid civil six-speed standard, Henan Huai solid seven-speed civil standard, Henan Province, high-speed civil Deng three standard Henan Xichuan X110 line first precast plant, Xichuan X110 line third precast plant, Jing Hu set a new high-speed standard Pingdiquan mixing station, Beijing set a new high-speed standard Tuchengzi Hu a mixing station, Beijing set a new high-speed Hu 18 sets a standard mixing station upon request and should be used as a substitute for polystyrene foam board bridge endometriosis. Henan Wansheng Color LLC is prestressed bridge with in-mold foam, color-coated steel housing, steel truss room, prestressed bridge with a firm anchor plate, external wall insulation board and other professional production and processing, has a complete and scientific quality management system. Color Henan Wansheng limited liability company's integrity, strength and quality of products recognized by the industry. Welcome friends to visit, guidance and business negotiation. Please call the Manager Zhao Tel: 13937394068 18703735315 Address: Hongqi Industrial Zone, Xinxiang City, Henan Province shop sales areas: the country can be sold.