Is quality inspection difficult for precast buildings? CCTV attention! The “artifact” of China Construction First Engineering Bureau has
The method is simple and fast, so as to evaluate whether the component connection quality is up to standard.
Recently, CCTV13 and China Construction News, the director of the Ministry of Housing and Urban Rural Development, have paid attention to the “artifact” of the quality inspection of precast buildings independently developed by China Construction First Bureau ▲ CCTV13 Chaowen Tianxia ▲ China Construction News, the director of the Ministry of Housing and Urban Rural Development.
The grouting sleeve is the main connection mode between the precast components.
It overcame the quality inspection problem of sleeve joints of precast building components based on the “air volume method” Non destructive testing technology has won two national utility model patents ▲ The sleeve grouting plumpness detector accurately calculates the sleeve grouting plumpness by measuring the pressure change value in the sleeve in real time.
What’s the good about the artifact? The scientific research institute of China Construction First Engineering Bureau independently developed a sleeve grouting plumpness detector to solve the quality inspection problem of precast buildings.
Currently, the accuracy and efficiency of testing are greatly improved, The sleeve grouting plumpness detector has been successfully applied in the civil servant apartment project of Beijing Deputy Administrative Center, Zhengzhou University Youth Talent Apartment and other projects.
In a narrow space, it is difficult to use a limited blind area, and the cost is high.
Fabricated buildings that build houses like building blocks have become a new trend in recent years, but the precise detection of the quality of precast buildings has become a major problem in the industry.
What are the common detection methods for precast buildings? The precast building is to transport the precast building components produced in the factory to the construction site for assembly and installation to reduce environmental pollution.
It can avoid inconvenience in carrying, inconvenience in random testing, cumbersome operation, high testing cost, etc.
It is planned to comprehensively promote it in the industry in 2021 ▲ The technicians of scientific research institutes will conduct sleeve grouting plumpness detection in the Sunhe Shed Renovation Project Section II of China Construction First Bureau How to place an order 321! Talk on the phone without much! Here comes the sleeve grouting plumpness tester! Technical contact Manager Hu 13522360538 Business contact Manager Tang 010-87148837 Welcome to consult with the co editor for production | Source of materials for the Central Kitchen (cscec1j) of China Construction First Engineering Bureau | The Scientific Research Institute of Brand Management Department [China Construction Science and Technology Month] entered the branch venue of China Construction First Engineering Bureau for two consecutive episodes on CCTV! See China Construction First Engineering Group Co., Ltd.
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At present, the detection methods used in China are as follows: – X-ray digital imaging method – forming visual images through X-ray This method requires radiation safety protection – embedded steel wire drawing method – embedding high-strength steel at the sleeve grout outlet before grouting Wire drawing load value can not be used to determine the filling degree of grouting.
This method can not quantify the filling degree – embedded sensor method – by measuring the signal feedback of the sensor, it can infer that the shape of the media around the sensor is expensive and can not quantify the filling degree – endoscope method – use the endoscope to observe the filling degree of sleeve grouting.
