by Housing and Construction Bureaus, Development Zone Development Bureaus, Prefabricated Concrete Component Enterprises, and Relevant Units of Each County (City):.
With the continuous promotion of the prefabricated building policy and the continuous expansion of the market scale in our city, in order to ensure the factory quality of prefabricated concrete components (hereinafter referred to as “prefabricated components”) for prefabricated buildings in Hefei, standardize the management of unqualified prefabricated components, improve the efficiency of disposing of unqualified components, strengthen the quality awareness of the main body responsible for construction project quality, and ensure the quality and safety of construction projects, after extensive solicitation of opinions, The following is a notice on strengthening the disposal and management of unqualified prefabricated components in our city:.
1、 The unqualified prefabricated components referred to in this notice refer to finished components that do not comply with standard regulations and design document requirements and have an impact on component installation, structural safety, and functional use during production, transportation, and installation processes..
2、 The classification standards and disposal measures for unqualified prefabricated components should comply with the “Code for Quality Acceptance of Concrete Structures” (GB 50204), “Technical Standards for Prefabricated Concrete Buildings” (GB/T 51231) and other regulations. Unqualified prefabricated components should be classified and disposed of, with the main party responsible for the production of unqualified prefabricated components. The prefabricated components after disposal should comply with the standard provisions and design document requirements..
3、 The quality management of various raw materials, components and accessories used for the production of prefabricated components should be implemented in accordance with relevant national standards and regulations, as well as the quality management system of the production enterprise. If the quality of various raw materials and components identified through testing or inspection does not meet the standard requirements, prefabricated components should be judged as unqualified components..
4、 Production enterprises should establish a management system for non-conforming prefabricated components, develop disposal plans, clarify control procedures and processing procedures, establish disposal areas for non-conforming prefabricated components, establish a ledger for non-conforming prefabricated component disposal, record the disposal process according to procedures, and regularly summarize and analyze to improve production processes and control measures..
5、 The main body responsible for the disposal of unqualified prefabricated components. For prefabricated components with general appearance quality defects that have been repaired and meet the qualified requirements, they may not be recorded in the unqualified prefabricated component disposal ledger, but there should be a record of the disposal process..
6、 For unqualified prefabricated components that affect decoration and renovation construction, the disposal subject should develop a technical treatment plan; For prefabricated components with serious quality defects that affect structural safety and functional use, as well as prefabricated components with dimensions that do not meet the requirements, a technical treatment plan should be developed and confirmed by the original design unit before processing; Prefabricated components that cannot meet the requirements of design, standards, and specifications should be scrapped, and relevant text and image records should be retained..
7、 In the production process of prefabricated components, if the embedded positions of water and electricity pipelines, embedded parts, etc. do not meet the requirements, and after maintenance by the production enterprise, they meet the standards and design document requirements, they should be accepted..
8、 Unqualified prefabricated components caused by damage during installation or later construction should be disposed of in situ repair, on-site isolation maintenance, return to factory repair, on-site scrapping, etc. according to the difficulty of maintenance. Production enterprises should cooperate with the disposal according to relevant agreements such as procurement contracts..
9、 After the treatment of unqualified prefabricated components, they should be reorganized for acceptance and can only be manufactured and used after passing the inspection..
10、 Production enterprises should strictly adhere to the principle of “not leaving the factory for unqualified prefabricated components”.
