Who has used plastic building templates? What's the effect? What are the advantages and disadvantages?

First, the advantages of plastic building formwork are:

1, smooth and bright. The formwork splicing is tight and smooth, and the surface roughness and flatness of the concrete structure after demoulding all exceed the technical requirements of the existing fair-faced formwork, and secondary plastering is not needed, which saves labor and materials.

2, light and easy to install. Light weight and strong process adaptability, it can be sawed, planed, drilled and nailed, and can be arbitrarily shaped into any geometric shape to meet the needs of formwork support for buildings of various shapes.

3, demoulding is simple. Concrete does not touch the board surface, does not need release agent, and is easy to demould and remove dust.

4. Stable weather resistance. At the temperature of -20℃ to +60℃, it has high mechanical strength, no shrinkage, no wet swelling, no cracking, no deformation, stable size, alkali resistance, corrosion resistance, flame retardant, waterproof, rat proof and insect repellent.

5, conducive to maintenance. The template does not absorb water, so it does not need special maintenance or storage.

Second, as far as I know, the disadvantages are:

1: The mass is too heavy.

The strength is not satisfactory.

3, it's a little expensive.

Extended data

Construction technology of plastic building formwork

1. Plastic formwork support with top plate: the secondary spacing is determined according to the plate thickness. Under general construction conditions, the sub-spacing (center-to-center distance) of floors with a thickness less than 150 is 350 ~ 400mm；; 150 ~ 250 thick floor spacing (center distance) is 300mm. Compared with the common bamboo plywood formwork, the spacing between secondary edges is increased by 50mm, and the deviation of concrete surface flatness is smaller, which truly achieves the effect of fair-faced concrete.

2. Shear wall plastic building formwork support: Take the wall height of 2800 and the wall thickness of 300 as an example, adopt 12mm formwork, adopt 15mm formwork for vertical secondary rib spacing (center distance) of 250mm, and adopt 300 mm for vertical secondary rib spacing (center distance) ... Compared with ordinary bamboo plywood formwork, the deviation between secondary rib spacing and concrete surface flatness is basically the same.

References:

Baidu encyclopedia-plastic building template