Formwork structure and material of fair-faced building: high-quality smooth and hard double-sided phenolic resin plywood is used, high-quality straight wood square is used as back wood, and steel pipes and bolts are tightened. HR portal rigid frame combined with bowl-buckle steel pipe bent system. Frame column template: The frame column template shall have dense corners and square edges. In the design, the template and the wood square with back edge are wrapped and stitched repeatedly to form a composite tongue and groove. Shear wall formwork: the formwork block of the wall should be as large as possible to reduce on-site joints; For the internal model of vertical shaft (such as elevator shaft and pipeline shaft), just like the joint of wallboard formwork, an adjustment joint with a width of 15mm is left outside the joint, and a steel joint plate with a thickness of 3mm and a width of 50mm is stuck inside. The folding width of each side of the joint plate is 10mm, the bending width is 30 mm, and it is polished smoothly. Drill an embedded hole with the width of 10mm in the center of the plate.

Scope of application of fair-faced building formwork: it is suitable for the main formwork project of the front structure of general high-rise frame with different structural forms, different floors, different columns, beam sections and different wall and slab thicknesses, and is suitable for various buildings. Not strictly limited by the size of the building area, post-pouring belts or expansion joints can be set up in this area for segmental construction. Technological principle of fair-faced building formwork: The basic production principle is that raw materials such as employees, machinery and steel pipe fasteners are calculated and designed, and plywood and formwork are finely processed to assemble standard and non-standard combined formwork blocks. Through certain fixing procedures, the formwork has strength, rigidity and stability, and the poured concrete meets the requirements of fair-faced concrete. Ordinary wood formwork has large deformation after water absorption, large shrinkage and brittleness after dehydration, and low recycling rate. Compared with common building wood formwork, fair-faced formwork has the following advantages: bright, flat, hard and smooth surface. Corrosion resistance to common chemicals such as acid and alkali. After concrete is poured and solidified, the formwork is easy to be removed, and the effect is better with release agent. The surface cleaning is convenient and concise, and it can be cleaned with water or steam. Good water resistance, box freezing resistance and high temperature resistance. Small deformation and good toughness. Small expansion rate and small shrinkage rate. The recycling rate is high.

?