Plugging and monitoring device for grouting material insteel bar grouting joint

Abstract

The invention provides plugging and monitoring device fora grouting materialin a steel bar grouting joint. The plugging and monitoring device comprises a plugging pipe, a sealing ring, a monitoring pipe and a ventilation cover,the sealing end of the plugging pipe is provided with a transparent bottom surface, the opening end is connected to a grout outlet hole of the steel bar grouting joint, andthe plugging pipe is provided with a first grout through hole; the sealing ring sleeve outside the plugging pipe, and the annular outer wall of the sealing ring is provided with a second grout throughhole;the monitoring pipe can be vertically inserted into the second through hole to form a detachable fixed connection; and the ventilation cover forms a detachable fixed connection with the upper end of the monitoring pipe, and at least one ventilation hole is formed in the ventilation cover. According to the plugging and monitoring device, installation is conducted before grouting, an operatorcan visually observe a position of a grouting material slurry surface in the monitoring pipe, slurry supplying can be conducted in time when grouting material slurry backflow occurs, construction difficulty is reduced, the grouting quality and construction efficiency are improved, the cost is low and waste of the grouting material can be avoided.

Description

technical field [0001] The invention relates to a grouting material plugging and monitoring device for steel bar grouting joints, belonging to the field of fabricated concrete buildings. Background technique [0002] In the prefabricated concrete structure, the installation and connection of vertical prefabricated components of concrete often use grouting joints to connect the vertical steel bars of the components. Common methods include: sleeve grouting connection, grout anchor lap connection, etc. At present, when these methods are applied to the grouting connection construction of vertically connected prefabricated components on site, the grouting holes and grouting holes of the grouting joints are mainly blocked by conical rubber plugs, and the friction between the plugging plugs and the hole wall is greater than that of the grout in the holes. The pressure of the material can ensure a reliable seal. If the friction between the rubber plug and the hole wall is insufficie...

AI Technical Summary

Problems solved by technology

[0005] In short, the existing technology of plugging the grouting joints with rubber plugs is difficult to ensure that each joint can be sealed reliably, prone to grout leakage, waste of materials, and the grouting material pollutes the site environment, and it is difficult to timely install the grouting material when the grouting material is fluid. It is found that the grouting material in the joint is not full, and the final appearance inspection of the grouting material in the hole is also very inconvenient. These problems have always plagued the grouting connection construction, affecting the construction efficiency and the connection quality of the structural steel grouting joint

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