Chips implanted in concrete test blocks?Maintenance behavior of standardized test blocks in Zhuzhou, Hunan
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Beginning in June this year, the Bureau of Housing and Urban-Rural Development of Zhuzhou City, Hunan Province, required the establishment of a standard concrete curing room on construction sites, standardizing the curing behavior of concrete test blocks, and implementing ready-mixed concrete chip implantation.
The picture shows the chip inserted during molding
Chip implantation in concrete
“Tofu residue” has nowhere to hide
According to reports, when each truck of concrete arrives at the construction site, a unique coded chip will be implanted in the concrete test block produced on site, the chip information will be scanned and uploaded to the Zhuzhou City Concrete Tracking System, and the concrete test block implanted with the chip will be sent Enter the standard curing room for maintenance.
The chip management of the concrete test block is used to ensure the authenticity and uniqueness of the concrete test block to prevent replacement or other fraud during the sampling process. The data is placed on the platform and stored in the database forever.
“With just a click of the mouse, the label and strength of the concrete are clear at a glance.” After the concrete test block is implanted with the chip, information and network technology are used to strengthen supervision and make the concrete quality management process informatized, precise and standardized. At the same time, concrete production data is collected and uploaded in real time, and every tank and every truck of concrete is monitored in real time through data collection technology to ensure the quality of concrete production.
The picture shows the inspector scanning the chip information
Why implant a chip?
The average person supervises 3000 square meters, too busy
Since Zhuzhou banned the use of bagged cement on site, the site did not allow cement to be mixed on site. Instead, the cement powder was directly transported to the mixing station in a closed container. After passing through a professional mixing line and mixing a certain proportion of sand and stone, the concrete was synthesized. Sealed and transported to the construction site for use. In order to save costs, unscrupulous builders often “make ideas” on the cement ratio of concrete, add more cheap sand and stone, and less expensive cement, and “adjust” the concrete specimens inspected by the construction department on-site. The built house suffers from “calcium deficiency”. Although there is no clue within a few years after its completion, it is “covered with scars” over time.
It is understood that last year, Zhuzhou City started construction of 6.38 million square meters of commercial housing, and the amount of concrete used was over 100 million tons. According to industry insiders, there are no more than 2,000 professional quality supervisors in Zhuzhou. This is equivalent to a quality supervisor who has to supervise the concrete condition of a construction site exceeding 3000 square meters. “Quality supervisors often perform random inspections on this construction site and immediately go to the next construction site. It is easy for one to lose sight of the other.”
How good is the concrete chip?
Each batch of concrete has a unique number, to prevent “adjustment”
After the chip is implanted in the concrete, the inspection unit must read the chip when receiving the sample to confirm the identity of the test piece. When performing the pressure test on the test piece, the chip needs to be read again to ensure the authenticity of the test piece.
The electronic chips used are all pre-registered and registered through the system platform. In the concrete system, the commercial concrete supplied by the same mixing station and a continuous pouring process with the same design mix ratio is defined as a batch, and each batch of concrete All have a unique production serial number, which completely eliminates the “contracting” behavior.
Will such a great electronic chip greatly increase the construction cost of the project? “Although this thing is’nine’, it is very cheap, and the purchase price per piece is not more than one yuan.” The staff member revealed that the implementation of all construction projects in the city will be completed by the end of June this year. The ready-mixed concrete chip implantation work ensures the full coverage of the ready-mixed concrete chip implantation in all construction projects.
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