What are the differences in construction techniques between plastic formwork and wooden formwork?
Plastic formwork and wooden formwork, as formwork tools for construction, have differences in construction techniques in the following aspects:
Installation method
Wooden formwork: usually requires the use of iron nails for fixation. When nailing, attention should be paid to the strength and position to avoid cracking the wooden board.
Plastic template: Due to the characteristics of the material, it is generally fixed with bolts, buckles and other connectors to avoid direct nail damage to the template.
Splicing processing
Wooden formwork: There may be gaps at the joints, and additional joint filling materials are required to ensure sealing and concrete forming quality.
Plastic template: The splicing is relatively tight with small gaps, but it may still require the use of sealant or other treatments to prevent leakage.
Demolding process
Wooden formwork: Before demolding, it is necessary to apply a release agent. There may be some adhesion during demolding, so careful operation is needed to avoid damaging the concrete surface and formwork.
Plastic template: Smooth surface, easy demolding, and good concrete forming effect.
Cutting and processing
Wooden template: It can be cut using tools such as electric saws and manual saws, making it relatively easy to operate.
Plastic template: requires the use of an electric cutting machine, and the debris generated during cutting is different from that of wooden templates.
support system
Wooden formwork: Due to its light weight, the requirements for the support system are relatively low.
Plastic template: It is lightweight, but in order to ensure stability, the design and construction of the support system still need to comply with regulations.
Turnover times
Wooden formwork: The turnover is limited, usually 5-8 times, and it is prone to deformation after multiple uses, which affects the construction quality.
Plastic template: With a turnover of over 50 times, it can be reused in multiple projects.
Storage and protection
Wooden formwork: Attention should be paid to moisture, fire, and insect infestation prevention, and the storage environment requirements are relatively high.
Plastic template: Good water resistance, anti-corrosion, V2 fire rating, flammable but non combustible, requires better fire resistance, can be customized with alloy plate.
Cleaning and maintenance
Wooden formwork: The surface is prone to adhering concrete residues, making cleaning more laborious.
Plastic template: Smooth surface, relatively easy to clean.