How to inspect precast buildings? Too fine: There are strict regulations for grouting temperature and the number of diagonal supports
Precast concrete sandwich insulation exterior wall panels consist of inner leaf concrete wall panels, outer leaf concrete wall panels, sandwich insulation layers (extruded polystyrene board XPS, molded polystyrene board EPS or graphite molded polystyrene board SEPS), steel reinforcement skeleton, tie pieces (non-metallic or metallic), connecting sleeves, embedded parts and reserved holes.
The inner leaf wall panel is adjacent to the indoor area, and the outer leaf wall panel is adjacent to the outdoor area.
The tie piece is used to connect the insulation layer and the concrete layers on both sides.
The connecting sleeve is divided into two types: casting and mechanical processing.
The steel skeleton is composed of longitudinal steel bars that bear vertical forces and transverse steel bars that resist horizontal forces.
The embedded parts and reserved holes meet the requirements of building water and electricity installation, ventilation and air conditioning systems.
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