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A kind of detection device and detection method of sleeve grouting quality

A sleeve grouting and detection method technology, applied in the direction of applying stable tension/pressure to test material strength, preparation of test samples, etc., can solve problems such as the inability to accurately detect the fullness of sleeve grouting

Active Publication Date: 2019-09-13
SHANGHAI RESEARCH INSTITUTE OF BUILDING SCIENCES CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the technical defect that the fullness of the sleeve grouting cannot be accurately detected. The invention provides a detection device and a detection method for the quality of the sleeve grouting, specifically a sleeve grouting method based on the pre-embedded steel wire drawing method. The detection device and detection method of the grouting quality of the sleeve, that is, the steel wire is pre-embedded at the grout outlet of the sleeve before grouting, and after the grouting material solidifies for a certain period of time, the pre-embedded steel wire is drawn through the detection device, and the grouting is judged according to the pulling load value. degree, if necessary, it can be checked with an endoscope

Method used

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  • A kind of detection device and detection method of sleeve grouting quality
  • A kind of detection device and detection method of sleeve grouting quality
  • A kind of detection device and detection method of sleeve grouting quality

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Embodiment

[0040] For a prefabricated shear wall, the concrete strength grade is C40, the steel reinforcement strength grade is HRB400, the reinforcement diameter is 25mm, and the wall thickness is 200mm. The sleeves are arranged in a single row in the center, the distance between the centers of the sleeves along the length of the wall is 100mm, and there are 6 sleeves arranged on the wall. The sleeve adopts GTZQ4-25 model (suitable for 25mm steel bar diameter), and the grouting material matched with the sleeve is used. The mass ratio of water and grouting material is 0.14 when mixing. Each sleeve is grouted using a separate grouting test.

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Abstract

The invention discloses a detection device and a detection method for sleeve grouting quality. The detection device comprises drawing equipment and an adjustable support, and can draw an embedded steel wire. The detection method comprises the following steps: machining and producing the embedded steel wire; arranging the embedded steel wire in position; manufacturing a grouting material test piece and performing grouting; maintaining the grouting material test piece and a grouted component; testing compressive strength of the grouting material test piece; drawing the embedded steel wire; judging a detection result. According to the detection device and the detection method, whether the grouting material strength and the sleeve grouting fullness meet requirements can be detected effectively, and the detection device and the detection method can be used for field detection and construction quality control of sleeve grouting fullness of an assembled monolithic concrete structure.

Description

technical field [0001] The invention belongs to the field of construction industrialization, and specifically relates to a sleeve grouting quality detection device and a detection method, which can effectively detect the strength of the sleeve grouting material and the fullness of the sleeve grouting. Background technique [0002] Assembled monolithic concrete structure is the main structural type of industrial buildings. For the assembly of monolithic concrete structures, the core is the connection technology of stressed steel bars. At present, most of the vertical connections of stressed steel bars in assembled monolithic concrete structures are connected by sleeve grouting. Due to the complex grouting connection structure of the steel sleeve and the hidden project, there has been no breakthrough in the detection technology of the grouting quality inside the sleeve, which has become a recognized difficulty in the industry. Traditionally, it mainly relies on the quality o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/08G01N3/10G01N1/28
Inventor 李向民高润东王卓琳
Owner SHANGHAI RESEARCH INSTITUTE OF BUILDING SCIENCES CO LTD
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