Requirements for rebar entry inspection 1, rebar entry inspection procedures, contents and requirements ① Before rebar entry, the director shall require the construction unit to submit the proposed entry time, specification, quantity and manufacturer in advance, so as to arrange personnel for acceptance. (2) When steel bars enter the site, the construction unit is required to issue the original product certificate (the copy is limited and must be stamped with the official seal), the original product registration certificate (the copy must be stamped with the official seal of the filing enterprise) and the production license number to check whether the steel bar production enterprises are in the list of strip steel production enterprises issued by Dalian Construction Committee. Once found, immediately sealed, according to the provisions of the treatment. (3) The product certificate shall carefully check whether the following items are complete and accurate. N Product name, model, specification and brand; N Production date, manufacturer's name, address, factory seal and production license number; N. Technical data with badges of inspectors and inspection units and provisions on mechanical and chemical properties; The standard name or code adopted; N. The surface of threaded steel bars must be marked with signs; N The total amount of steel for a certificate of approval shall not exceed 60t (one inspection lot). (4) after the product certificate, filing certificate and production license are all inspected, all the incoming steel bars piled in the car must be unloaded for inspection, and the method of bundled sampling is adopted. The contents of visual inspection include: n Whether there is product identification (steel bar strength grade, manufacturer's name abbreviation, symbol and steel bar specification) on the steel bar surface, and whether the identification is accurate and standard. N steel bar has abnormal appearance color, serious corrosion, excessive measured specifications, surface cracks, double skin, etc. (5) after the appearance inspection is qualified, the certificate of approval meets the requirements and the identification is accurate, the witness sampler will supervise the sampler of the construction unit to conduct on-site sampling according to the regulations, and send it to the laboratory for a second interview with the construction unit * * * after the sampling is completed. After receiving the inspection qualified notice (note: those who can't issue the qualified report immediately can only enter the site with a temporary report, otherwise they will leave the site with relevant records and signs. 2. In the process of processing and use, attention should be paid to check whether there are cracks, brittle fracture, poor welding performance and obvious abnormal mechanical properties. Once found, it should be treated immediately. The treatment requirements are as follows: ① This batch of steel bars should be sealed immediately; (2) Double sampling, reinspection or chemical analysis inspection when necessary; (3) In the case of individual phenomena, the problem materials are cleared out; If this batch of problems is serious, resolutely retreat and make records. 3. Several requirements: ① The special treatment of steel bar product quality is the key inspection content of the country, province and city, especially the "strip steel" should be "strictly guarded against death", and all supervisors must attach great importance to it and strictly manage it on site. If there is a problem with the inspection of steel bars in future projects, which will have a negative impact on the enterprise, the director should take full responsibility and be notified 1 time for warning and internal notification. Within one year, the director who has been notified twice will resign. (2) The steel bar must be discharged for inspection in order to prevent "sandwich" and make the unqualified steel bar miss inspection. (3) For steel products entering the site, the factory director must designate a special person to be responsible for guiding the inspection work in place. At the same time, it is necessary to implement the system of one batch and one sheet for steel entry, and form a separate record of steel entry.