by Illustrate the key process of prefabricated building construction Sleeve grouting ↓↓↓ As the key process of prefabricated building construction, sleeve grouting is used for the connection of vertical components (such as shear wall and frame column) and horizontal components (such as frame beam): the purpose of sleeve grouting is to insert ribbed reinforcement into the reinforcement sleeve with grooves in the inner cavity, and then inject special high-strength, non shrinkage grouting material, To achieve a connection effect higher than the strength of the steel bar base material: ▲ Schematic diagram of semi grouting joint ▲ Schematic diagram of full grouting joint Preparation before construction 【 Material preparation 】 Key points for sleeve inspection: strength, deformation, spheroidization rate, hardness, etc.
Key points for grouting material inspection: strength, deformation, fluidity, durability, etc.
Key points for type inspection: tensile strength and deformation, JGJ107 Level 1 Joint Standard [Machine Preparation] [Key Points for Pre construction Preparation] 1.
Inspection Record (Number, Diameter, and Reserved Length of Joint Reinforcement) 2.
Base Cleaning (Base Grout Surface, Inner Sleeve, Joint Reinforcement) 3.
Sealing (Section or Control Quantity, Maintenance) 4.
Interface Watering and Moisturizing 5.
Example of Remedial Plan Construction Process [Construction Precautions] 1.
Grouting Construction (Cannot be Mixed, Mix Ratio, Watering and Moisturizing, Control Speed) 2.
Maintenance 3.
Example display of sleeve grouting connection for three major components of environmental temperature 1.
Prefabricated concrete shear wall connection 2.
Prefabricated concrete frame column connection 3.
Prefabricated concrete frame beam connection construction engineering Luban Award appreciation.
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