Sleeve grouting quality inspection device

Abstract

The invention discloses a sleeve grouting quality detection device, comprising an insulating base, a multi-section inner wire, an external wire and a feedback device; the inner wires of each section are pre-buried in the insulating base, and the inner wires of each section are insulated from each other. One end of the two inner wires passes through the insulating base to become lead wires, and is connected to a feedback device through an external wire, and the feedback device is used to measure the resistance value of the formed loop. The invention has the advantages of convenient installation and simple operation. The sleeve grouting quality detection device of the present invention is provided with a plurality of sections of inner wires, and different grouting effects make the conduction between the inner wires change and are reflected by the change of resistance value, thereby greatly improving the sensitivity of sleeve grouting quality detection .

Description

technical field [0001] The invention relates to a quality detection device for assembly structure construction, in particular to a casing grouting quality detection device. Background technique [0002] Prefabricated assembly has attracted more and more people's attention and has been vigorously developed with the support of the country. The construction of a prefabricated structure is like building blocks. Each component is poured in the factory and assembled on site, which leads to the inability to connect various parts. Adopt the same connection method as the traditional cast-in-place structure. At present, in prefabricated structures, full-grouting sleeves and half-grouting sleeves are mainly used to connect various parts. The connection quality between various parts mainly depends on the grouting quality of the sleeves. However, due to improper operation of the grouting workers and design problems of the components themselves. Leaky warehouses and the like will serious...

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Problems solved by technology

Ultrasonic method can detect the grouting quality of horizontal component connection joints well, but it can’t effectively distinguish vertical components; the impact echo method has a large difference between the detection results and the actual situation due to the complexity of the internal structure; although X-ray It can better reflect the quality of sleeve grouting, but it is harmful to the human body and the test equipment is complicated, so this method cannot be popularized in the field at present; the embedded sensor damping vibration method is mainly used to judge the density of the grout outlet , the cost of the induction device is high, and the on-site wiring is cumbersome, which cannot directly reflect the density of the grouting material inside the sleeve, which has become a barrier to limit its application

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