ZGREAT Film Faced Plywood Formwork mainly follows the principles of practicality, safety, and economy, and fully considers the self-weight of formwork and its support, the construction load, the load of construction personnel and construction equipment, the lateral pressure of formwork generated by concrete pouring and vibration, so as to ensure that the formwork has the sufficient bearing capacity, stiffness, and stability, so that it will not be deformed, damaged or collapsed during construction. In order to formulate a reasonable and effective Film Faced Plywood scheme.
If the construction is in winter, the winter construction technology should also be disclosed in time to ensure that each process of the Film Faced plywood formwork project is organized in accordance with regulations, specifications, and technical measures, and the corresponding winter construction records should also be made to provide a basis for the subsequent formwork construction scheme arrangement. At the same time, a special person should be designated to master the temperature change, timely convey meteorological information, make weather records, and take corresponding technical measures and material preparation when the temperature plummets, so as to do a good job in winter construction of the formwork and ensure the smooth progress of the project.
For the management of film faced plywood materials, first of all, according to different engineering conditions, different construction sites, targeted selection of film faced plywood materials. Such as beam, and column film faced plywood can use medium combination film faced plywood; The wall formwork can be made of medium composite formwork, or made of whole multi-layer formwork, or permanent all-steel large formwork; Floor formwork can be made of wood, bamboo, and other multilayer board; Super high-rise buildings or high-rise buildings can adopt the hydraulic climbing formwork which combines the advantages of large formwork and sliding formwork, so as to facilitate construction, save the site and the time of tower crane, and ensure the safety of high altitude operation.
In the construction process, should ensure the quality and safety of the construction period under the premise of reducing one-time input, increasing the turnover of the film faced plywood, reduce the branch and demolition labor. The film faced plywood should be removed with as little damage as possible, and the fastener should be recovered as required. Do not litter the fastener for easy turnover. The removed film faced plywood should be cleaned, corrected, and brushed with a release agent in time. The film faced plywood with unclear marks should be re-identified and carefully maintained to extend the service life.
During winter construction, a dry and ventilated place should also be selected to classify and store the building film faced plywood that cannot be used in time, and the film faced plywood should not be exposed directly to the outside, so as to avoid deformation, deterioration, fading and other problems caused by frost, rain, and snow erosion or low-temperature influence of the film faced plywood, which will affect the subsequent use.
film faced plywood installation points
- If the construction is in winter, the snow, ice and soil on the film faced plywood should be clean before use, and the sundries, snow and ice in the film faced plywood should be cleaned after the completion of the support mold, with no watering. In case of strong wind (Grade 5 or above), the assembly and hoisting of the bulk formwork shall not be carried out.
- Before the installation of the column film faced plywood, it is necessary to elastic the axis column sideline and fixes the elevation on the steel bar. In addition to ensuring the column mold and support are firm and stable, the upper and lower film faced plywood should also be supported on the same vertical center line.
3, the wall, column film faced plywood back can stick 50mm thick flame retardant polystyrene board insulation, and the insulation board relative gap increase 1~2cm, in order to ensure that the insulation board does not fall, but also should be on the outside with bamboo plywood or three plywood seal, and bamboo plywood or three plywood should be removed and assembled with the film faced plywood at the same time. - The side die of the beam should be made of 18mm thick multilayer plate; the Beam bottom formwork should be 50mm thick pine planing; the Floor formwork shall be made of seven cleats or 18mm thick multilayer boards.
- The die support shall be set up according to the requirements of the formwork scheme, and the elevation of the support and the height of the arch shall be checked after the erection, and the plate formwork shall be laid to the outside of the side die of the beam in a level, and shall not be laid on the side die of the beam.
film faced plywood removal points - When demolishing the film faced plywood in winter, the demolishing application should be submitted in accordance with the regulations, including the demolishing test block pressure test report. The demolishing operation can be carried out only after the demolishing application is approved.
- The film faced plywood should be removed in the correct sequence and method according to the film faced plywood design regulations. If there is no specific provision, the film faced plywood should be removed in accordance with the principle of supporting before removing.
3, in the positive temperature environment, if the wall will not damage the corners of the concrete, the surface layer can be removed; In the negative temperature environment, the mold should be removed when the compressive strength of the test block reaches 4MPa and the concrete is not frozen, and the time of removal should be strictly controlled.
4, when the temperature difference between the concrete and the external environment is greater than 20℃, the surface of the concrete should be covered with a polyethylene plastic sheet after the removal of the mold, and the surface should be temporarily covered with grass bags to make it slow cooling.