Base course cleaning (base mortar surface, sleeve inside, joint reinforcement) 3.

Interface watering and wetting 5.

Ring Clutch

Inspection record (quantity, diameter and reserved length of joint reinforcement) 2.

Example of remedial plan construction process [key points of construction] 1.

Case study of sleeve grouting connection of three major components of ambient temperature 1 – precast concrete shear wall connection 2 – precast concrete frame column connection 3 – precast concrete frame beam connection construction engineering Luban Prize Appreciation of construction engineering Luban people exchange daily selection, evening release of learning and fun, common progress ↓ Long press identification, join the alliance ↓.
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Illustrate the key process of precast building construction Sleeve grouting ↓↓↓ Sleeve grouting, as the key process of precast building construction, is used for the connection of vertical components (such as shear walls and frame columns) and horizontal components (such as frame beams): The purpose of sleeve grouting is to insert ribbed reinforcement into the steel sleeve with grooves in the inner cavity, and then pour special high-strength, non-shrinkage grouting materials, To achieve the connection effect higher than the strength of the reinforcement base material: ▲ Semi-grouting joint schematic ▲ Full-grouting joint schematic preparation before construction [Material preparation] Sleeve inspection points: strength, deformation, spheroidization rate, hardness and other grouting material inspection points: strength, deformation, fluidity, durability and other type inspection points: tensile strength and deformation, JGJ107 Class I joint standard [machine preparation] [key points of pre-construction preparation] 1.

Grouting construction (can not be mixed, mix proportion, watering and wetting, control speed) 2.

Blocking (section or control quantity and maintenance) 4.

Maintenance 3.