The main reasons why building template paper is prone to bubbles include the following:
Unqualified template quality: The quality of building template material is one of the main factors causing bubbles. If the material quality of the template is not good, bubbles are likely to occur during the construction process. It is recommended to choose high-quality materials and guaranteed brands when purchasing building templates.
Excessive construction temperature: When the construction temperature is too high, the template material is prone to boiling, resulting in bubbles. Therefore, a suitable temperature range should be selected during construction to avoid excessive temperature1.
High humidity in the construction environment: Building templates are also prone to bubbles when the humidity in the construction environment is high. Therefore, before the template is constructed, it is necessary to carefully check the humidity of the construction environment and take measures such as moisture-proof and mildew-proof.
Unreasonable concrete mix ratio: No air-entraining agent is added to the concrete, and bubbles cannot be eliminated after they are generated. The concrete mix ratio design is determined through laboratory adaptation to ensure that no segregation occurs during the pouring process, resulting in rotten corners.
Release agent problem: The quality of the release agent plays a big role in the generation of bubbles. The use of oily release agents and new wax-embedded board technology can ensure that concrete does not produce bubbles and rough surfaces that affect the surface quality.
Irrational formwork construction method: The unreasonable formwork reinforcement method leads to concrete root rot. Reliable reinforcement methods are adopted to constrain the deformation of the side formwork to reduce the generation of bubbles.
Construction process problems: Concrete pouring is too high at one time, the layer thickness is unreasonable, the vibration insertion spacing is too large, and the vibration time is short, which will cause bubbles to not be fully discharged.