Research on Construction Technology of Plastic Formwork Engineering
First, the process principle of plastic formwork engineering
The plastic formwork support system combines the superiority of the large steel formwork with the advantages of the wood formwork, which is easy to support and flexible. The splicing of the plastic template can be directly spliced ​​by fixing the nail on the wooden side (see Fig. 1, Fig. 2). According to the size of the concrete member, it can be connected and combined in any direction in the longitudinal direction and the transverse direction. The construction is convenient, and the concrete molding size is more accurate by locking with a special clamp. By using plastic stencils, the appearance quality of concrete can be more easily guaranteed, and the construction operation is more convenient than steel stencils, wood stencils and bamboo stencils.
Second, low foaming multi-layer plastic building formwork production process and operation points
The production process and operation points of the low-foam multi-layer plastic building formwork belong to the product patent and have passed the scientific and technological achievements appraisal. The process of plastic building formwork dismantling is shown in Figure 3.
Demolished:
1. Control the time of demoulding. Premature demoulding will cause the concrete of the wall to stick to the mold. When the concrete is completely solidified, the poured concrete will automatically separate from the formwork, and the demolding process is faster and easier.
2. The demolishing template must have a demolishing order signed by the construction technology department. It is strictly forbidden to dismantle the mold without permission.
3. The removal of the bottom mold shall be carried out in accordance with the provisions of GB50204-2002 Concrete Structure Engineering Construction Quality Acceptance Specification. The operation team shall be dismantled and applied for approval after being approved by the technical department of the project department.
4. The template engineering operation should follow the mode of the supporting and demoulding by an operation team, and should follow the principle of first removing the lateral support and then disassembling the vertical support.
5. After the plastic template is demolished, the working surface is clean, no ash and other garbage, and there is no need to apply the release agent to the concrete contact surface.
Third, materials and equipment
Material preparation: low foaming multi-layer plastic building formwork, channel steel, angle steel, wood square, nails, bolts, steel bars, sponge strips.
The six piece tea set generally refers to: teapot, cover, pot holder, tea plate, tea cup and smelling cup.
Teapots are the main containers for making tea. The types of teapots include purple clay pots, porcelain pots, glass pots, etc.
The lid, also known as the lid, is an appliance used to place the lid during tea brewing, which can prevent the lid from directly contacting the tea table and reduce the wear of the lid.
The pot holder, also known as pot holder, is an appliance specially used to place teapots.
A tea tray is a tray for holding cups and other tea sets to receive the tea that flows out or is poured out in the process of making tea.
Tea cups and tea cups are also used to drink tea soup. There are three kinds of tea cups in common use, one is white porcelain cup, one is purple clay cup, and the other is glass cup for viewing soup
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