Bridge inflatable balloon precast hollow core touch rubber inflatable balloon bridges, tunnels and inflatable mandrel precast hollow rubber inflatable balloon is an inflatable balloon 13663286655, cylindrical bag contraction, vulcanized rubber and fiber reinforced layer made from, with high tensile strength, elasticity and airtightness, a cavity for forming concrete elements, in the manufacture of hollow members, put it in the middle, and filled with compressed air, inflated after sufficient strength to withstand the pressure of concrete, can replace the original wooden mold, bamboo mold, steel, open the valve balloon that contract and can be withdrawn from the balloon cavity. It is easy to use, economical and durable, can be repeatedly used, not soft, inflatable can shrink any folded, curled, for reinforced concrete pumping holes, including piles, roof trusses, roof columns, beams, construction, hydraulic engineering (dock , berth, quay). Construction Practice has proved that the balloon pumping holes process equipment is simple, not only to save material, and has the shape changing characteristics, can be as round, oval, rectangular, arched, octagonal, trapezoidal and other pipeline. You can also become a straight hole, variable cut faces and other structures can become light, thin-walled hollow, concrete properties has been used to change the status of a rigid template to reduce costs and speed up the construction progress of concrete products supporting products. Use 1, into the mold with a rope pulling the bridge tunnel precast hollow mandrel inflatable rubber balloon inflatable balloon has penetrated the concrete reinforcement cage, and to be placed outside the inflatable mouth. 2, inflatable A. Open the inlet valve pneumatic control when inflated with a pressure gauge to monitor bridges, tunnels and inflatable mandrel precast hollow rubber balloon inflatable balloon pressure. B. When the bridge tunnel precast hollow mandrel inflatable rubber balloon inflatable balloon pressure to use the pressure, the intake valve closes. (Using the inflation pressure shown in Table III) C. Shaped bridges, tunnels and inflatable mandrel | precast hollow balloon | rubber inflatable balloon should be alternately inflated until it reaches operating pressure. D. Note bridges, tunnels and inflatable mandrel | precast hollow balloon | rubber inflatable balloon is inflated not overpressure. 3, fixed and pouring concrete A. When the vibration of concrete bridges, tunnels and inflatable mandrel precast hollow rubber balloon inflated balloon will go up, therefore, must be up, down, left and right to be fixed, bridges, tunnels and general φ250mm inflatable mandrel | precast hollow balloon | rubber inflatable balloon stirrups spacing of 80cm, such as diameter increased, the fixed spacing corresponding narrowing. B. Pouring concrete and solid components are basically the same, note the use of high frequency vibrator inserted or vibration from both sides at the same time to prevent the bridge tunnel inflatable mandrel | precast hollow balloon | rubber inflatable balloon about displacement, vibrators end site is best not to touch the bridge tunnel inflatable mandrel | precast hollow balloon | rubber inflatable airbags. ? 4, form removal when the initial setting of concrete, open the bleed valve, you can be bridges, tunnels inflatable mandrel | precast hollow balloon | rubber inflatable balloon out of time depending on number of cement visible. 5. Rinse bridges, tunnels inflatable mandrel | precast hollow balloon | rubber inflatable balloon, to test the water to check the custody and maintenance of bridges, tunnels and inflatable mandrel A. | precast hollow balloon | rubber inflatable balloon after use rinse with water, do not be put dry air, do not touch the oil, acid and alkali. B. scene using bridges and tunnels inflatable mandrel | precast hollow balloon | avoid sharp hard objects rubber inflatable airbags. C. balloon after ejection time, immediately brush (nylon brush is best) tap water bridges, tunnels and inflatable mandrel | precast hollow balloon | rubber inflatable balloon, the balloon is removed the concrete surface to keep the surface clean. D. bridges, tunnels and inflatable mandrel | precast hollow balloon | rubber inflatable balloon, if any leakage, sealing off the film, you can use the wheel in need of repairs at the grinding, brushing glue patch covering film, fiber tear at the places covered with tape repair. Pressure control relational tables inflatable mandrel diameter and operating pressure between: diameter (unit: mm) using the pressure (MPa) 80 0.12, 120 0.10 ?, 150 0.08, 200 0.07, 250 0.05 ?, 400 0.04 ?, 500 0.035 600 0.03 700 0.027 800 0.026 900 0.025 2200 0.005? With the increasing inflatable mandrel diameter, decreasing the use of pressure. Specifications Model inflatable mandrel specifications:? Common specifications, special sizes, plus dual jacket φ180mm X 6-20m φ400mm X 10-40m 350 X 530 (540) mm X 10-40m φ200 (φ220) mm X 10-20m φ500mm X 10-40m 320 X 520 (540) X 10-40m? φ240 (φ250) mm X 15-40m φ600mm X 10-40m 350 (360) X560mm X 10-40m? φ300 (φ330) mm X 15-40m φ620mm X 10-40m 360 X 640 (650) mm X 10-40m φ350 (φ360) mm X 10-40m φ700mm X 10-40m 320 X 520 (550) mm X 10-40m Storage (1) the use of the completion of the mandrel should immediately wash with clean water, care should be taken to remove a small amount of concrete, with the same general rubber products, storage mandrel should be placed in ventilated and dry warehouse, avoid direct sunlight and humid environment and accelerated aging of rubber, the impact of the next use. (2) does not contact the release agent or other organic solvents. (3) site into the mold, stripping to pay special attention not to let the nails, iron, steel top sharp, hard object punctured mandrel while positioning the stirrups welding process, the mandrel should strengthen protection. (4) If there is leakage mandrel, when the rubber seal off, shall promptly repair, otherwise it will affect the quality and the impact of the use of prefabricated. Patch is the main method used to fight hair in patches at the wheel or rasps, after brushing glue patch covering film. Fiber tear repair can cover with plastic sheets. The main role is mainly used for highway bridges before post-tensioned concrete pouring molding engineering tensioned beams. Culvert also been adopted by the sewage works. Rubber balloon is a use of a rubber polymer characteristics and high strength can be made of vulcanized fiber expansion and contraction of the inner mold different shapes (by vulcanized rubber and fiber reinforced layer made of products, with high resistance to compressive strength, elasticity and tightness), after filling into the air, the balloon is stretched to meet its expansion requirements of section design, inflation pressure may be identified according to the manufacturer. And can be withdrawn from their balloon cavity. It is easy to use, economical and durable, soft and shrink when not inflated, arbitrary folded, curled, inflated after sufficient strength to withstand the pressure of concrete. The company mainly produces: bridge bearings, bridge expansion joints, rubber water stop, inflatable mandrel and other King County Extension of Rubber Products Co., Ltd. Tel:? 0318-2119256 Mobile: 13663286655 Contact: Yanjing Li-mail: tuodaxiangsu @ 163 .com QQ: 78644862