One of the most deadly factors is that the building template expands and becomes unstable after encountering water, leading to a series of problems such as loss of glue, layering, edge Angle warping and template deformation.In addition, exposure to the sun, especially after exposure to water, this is the template deformation of the most important factor, is also caused by the edge Angle layer.The problems of raw materials, the quality of glue and the size of the pressure in the process of hot pressing are also the main reasons for the late formwork stratification.The formwork is in contact with corrosive materials such as cement and concrete, as well as the formwork corrosion caused by improper maintenance, and the contact between the corner and the concrete slurry leads to the stratification.

During the installation process, the level of the workers is also a very important factor, random sawing, opening, violent ripping, violence, and managers in advance not to optimization design of the template, not numbered treatment etc, these also results in the decrease of the template turns factor;The contact between the template and the concrete is too long, resulting in too tight binding, difficult to disassemble the mold, resulting in the tearing of the surface layer of the template, etc.

Boil down to, non-standard construction lead to the template surface damage, and water absorption, exposure result in instability of templates, case become warped, tearing, stratification, deformation, etc., as a direct result of the template turns down.Research direction in recent years, the template development, also is basically in the above points, in order to produce composite template can overcome the above factors, however, there is currently no is in mature technology, can change the status quo.