1. Different raw materials
Qingshui formwork is a kind of building formwork. In northern China, the formwork is made of high-quality birch, poplar and other boards. In southern China, it is made of pine. The plywood template is made of , fir, eucalyptus and other boards. The surface is impregnated with highly waterproof phenolic resin and hot-pressed at high temperature. The surface is smooth and smooth.
Coated panels are coated with a film on an aluminum alloy substrate. It is made of high-gloss film or colorful film, and the board surface is coated with professional adhesive and then composited.
2. Different properties
When pouring concrete components with clear water formwork, in addition to the stiffness and flatness specified in the specification, the smoothness also needs to be met. Generally, the surface does not need to be plastered. Decoration can speed up the construction period and save the time and cost of plastering. Clear water formwork is lighter in texture and is mainly suitable for formwork for shear walls, vertical wall panels in high-rise buildings, dam tunnels, overpasses, arch bridges and other bridge beams and columns.
The surface of the laminated board is made of imported laminated paper and processed by precision machinery. It is flat and smooth and easy to demould. After the mold is removed, the concrete surface will be flat and smooth, which can eliminate the need for secondary plastering and reduce costs. The construction period is long, and it is light in weight, easy to cut and nail, and has good construction performance, which improves the construction speed.
Extended information:
During the transportation and storage of formwork, it is necessary to avoid severe deformation of the formwork in a short period of time due to exposure to sunlight and rain. At the construction site, the formwork should be stored on a flat, dry site and avoid being stored in particularly hot and dry places. In addition, in order to prevent the aging of the film on the surface of the template, exposure to sunlight must be avoided.
In a humid environment, the steel or plastic strapping should be removed. When using mechanical equipment to transport the formwork, attention should be paid to re-tying it to avoid losses and accidents caused by the formwork falling down.
After the formwork is disassembled, clean it immediately with brushes, plastic or wooden scrapers and other non-metallic tools, place the wood on the ground, align the corners and stack it on the flat ground. The board surface must not be in direct contact with the board surface. Keep the formwork ventilated, protected from sunlight and rain, and inspect it regularly.
Baidu Encyclopedia-Laminated Board