A high-level grouting device for prefabricated concrete wall sleeve grouting construction

Abstract

The invention provides an assembled concrete wall sleeve grouting construction high-level grouting device that is easy to assemble and adjust, which includes a first sleeve, a second sleeve coaxial with the first sleeve, and a The grout discharge hole on the outer peripheral surface of the first sleeve, the grouting hole arranged on the outer peripheral surface of the second sleeve, and the adjusting device arranged between the first sleeve and the second sleeve ; There are steel bars on the side of the first sleeve and the second sleeve away from the adjustment device; the adjustment device adjusts the distance between the first sleeve and the steel bars in the second sleeve; the first sleeve is hollow Cylindrical; the grouting hole communicates with the inner hole of the first sleeve; the second sleeve is hollow cylindrical; the grouting hole communicates with the inner hole of the second sleeve, the Both the first sleeve and the second sleeve are provided with rubber plugs on the side away from the adjustment device. The invention is convenient for adjustment, can avoid grouting errors, and improves the quality of the prefabricated concrete building.

Description

technical field [0001] The invention relates to the technical field of fabricated walls, in particular to a high-level grouting device for sleeve grouting construction of fabricated concrete walls. Background technique [0002] The steel sleeve grouting connection is one of the most important connection forms of prefabricated buildings. Line-casting shear walls and prefabricated concrete wall panels pass through the vertical cast-in-place joints and the cast-in-place shear walls horizontally through pouring special high-strength cement-based grouting materials into the gap between the sleeve and the steel bars. After the grouting material solidifies, the steel bars can be anchored in the sleeves. Inside the tube, it is an important process to ensure the safety of the building structure. At the same time, it also puts forward higher requirements for on-site management and worker skills. [0003] A single ribbed steel bar is inserted into the metal sleeve and injected with a...

AI Technical Summary

Problems solved by technology

[0007] The grouting of the horizontal sleeve generally adopts the independent grouting method. If the end of the sleeve, the grouting port and the grouting port are not tightly sealed, grout leakage will occur, and a long gap defect will be formed on the top of the sleeve, so that the grouting material cannot form a full cross-section of the steel bar. The effective restraint of the steel bar will reduce the bonding and anchoring effect of the steel bar and affect the performance of the sleeve grouting joint.

[0008] 2. Rebar eccentricity

When dividing warehouses, it is impossible to properly adjust and correct the position of the upper and lower steel bars in the sleeve. Since the steel bars are in the sleeve, the grouting quality cannot be measured. The control of the construction quality can only be the control before and during the construction. Some grouting defects cannot be controlled only by personnel construction, such as the above-mentioned defects such as steel bar eccentricity and sleeve grout leakage, so grouting defects need to be avoided structurally

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