Most popular Sichuan Chengdu Hebei Xingtai issued

2022-08-17
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Sichuan Chengdu and Hebei Xingtai issued decrees, and the waterproof industry is profitable

Chengdu, Sichuan and Xingtai, Hebei issued decrees, and the waterproof industry is profitable

June 03, 2021 recently, Chengdu Municipal Bureau of housing and urban rural development issued a notice on the use of water-based building coatings and polymer waterproof materials in government investment projects. Xingtai housing and Urban Rural Development Bureau also issued a document to eliminate the practice of prohibiting polypropylene waterproof coiled materials and vigorously promote the pre paving anti sticking waterproof technology. The two places have made norms and standards for waterproof building materials, which also provides a good opportunity for enterprises that are developing new building materials

among them, the Chengdu Municipal Bureau of housing and urban rural development issued a notice on the use of government investment projects. 1. The definition of extensometer. Extensometer is a sensor that senses the deformation of the test piece. The main body of the implementation enterprise includes the following:

(I) the construction unit is primarily responsible for the use of water-based building coatings and polymer waterproof materials in the project, The selection requirements of water-based building coatings and polymer waterproof materials should be strictly implemented, and the design unit, construction unit and supervision unit should be urged to implement relevant regulations and use water-based coatings and polymer waterproof materials in the process of project design and construction. Before June 1, for projects that have passed the drawing review and filing and have not implemented relevant working procedures, the construction unit should take the lead in organizing relevant subjects to carry out troubleshooting, urge the design unit to implement the full use of water-based building coatings and polymer waterproof materials through design changes, and urge the construction unit to fully use water-based building coatings and polymer waterproof materials in the construction process, And take the lead in checking the data and construction requirements of water-based building coatings and polymer waterproof materials at the completion acceptance stage

(II) for government invested projects that carry out construction drawing review after June 1, 2021, the requirements for the use of water-based building coatings and polymer waterproof materials in government invested projects should be strictly implemented. The design unit should indicate in the construction drawing design documents of construction projects, and the drawing review organization should check in the review of construction drawing design documents. For the projects that have completed the construction drawing review before June 1, 2021, the design unit and the drawing review organization should cooperate with the construction unit to modify the non-aqueous building coatings and non polymer waterproof materials into water-based building coatings and polymer waterproof materials through design changes. The depth of design change shall comply with the relevant provisions of design depth and meet the needs of guiding on-site construction

(III) the construction unit shall establish purchase accounts for construction materials such as waterborne building coatings and polymer waterproof materials in strict accordance with the requirements of the guiding opinions on the management of purchase accounts for construction materials containing volatile organic compounds at construction sites in Chengdu (cgbh (2020) No. 21), keep copies of purchase contracts and invoices, and copy relevant materials and bills for inspection. Organize the construction according to relevant specifications, standards, Atlas and design documents, and strengthen the daily management of the construction site

(IV) the supervision unit shall strictly supervise the construction quality of architectural coatings and waterproof materials in accordance with the relevant technical standards, the low effectiveness of the Vickers hardness test and the design documents. Those who do not use waterborne architectural coatings and polymer waterproof materials for construction shall be ordered to rectify, and those who refuse to rectify shall be reported to the construction unit and the competent department of the industry

(V) the testing unit should carry out the testing of water-based building coatings and polymer waterproof materials in strict accordance with the relevant current national standards. The testing data should be true and accurate, and fraud is strictly prohibited. In case of unqualified test results, relevant units shall be notified in time according to regulations and reported to the competent department of the industry

Xingtai housing and Urban Rural Development Bureau issued the "notice on measures to further improve the quality of waterproof projects", which requires that high-quality waterproof materials should be selected, waterproof materials prohibited by decree should not be used, and the application of new technology should be vigorously promoted. At the same time, the construction organization design should be done well, the construction should be carried out in strict accordance with the drawings, and the mobilization acceptance of raw materials should be strictly controlled

the main contents of the document are as follows:

(I) asphalt composite tire flexible waterproof coiled material, S-type PVC waterproof coiled material and polyethylene polypropylene composite waterproof coiled material with core thickness less than 0.5mm, which have been expressly prohibited by the Ministry of housing and urban rural development and the Provincial Department of housing and urban rural development, shall not be used

(II) type I elastomer modified asphalt waterproof coiled material shall not be used for underground waterproofing of buildings. The technical code for waterproofing of underground works GB requires the main physical properties of waterproof coiled materials: according to the GB requirements of elastomer modified asphalt waterproof coiled materials, elastomer modified asphalt waterproof coiled materials are divided into type I (-20 ℃) and type II (-25 ℃) according to material properties, and only type II (-25 ℃) elastomer modified asphalt waterproof coiled materials have physical properties that meet the requirements of the technical code for waterproofing of underground works GB

(III) vigorously promote the use of pre paved anti stick waterproof technology for underground projects, which is one of the new technologies recommended by the Ministry of housing and urban rural development in the "10 new technologies in the construction industry" (2017 Edition)

(IV) in grade I and II underground waterproof projects, it is forbidden to use the composite method of inorganic rigid bonding materials and single-layer polyethylene polypropylene waterproof coiled materials

(V) the construction unit shall incorporate the quality of waterproof works into the construction organization design, formulate the construction scheme of waterproof works and measures to ensure the construction quality, and organize the construction after being reviewed and approved by the construction unit and the supervision unit

(VI) the waterproof materials used in the project shall comply with the current national product standards and design requirements. Waterproof materials that are unqualified or in violation of relevant national, provincial and municipal regulations must not enter the site

under the "big infrastructure" and "old-fashioned reform", the government is also increasingly strict with the national building materials. In this context, those materials that have great potential safety hazards and will cause serious pollution to the environment. 2. Materials dyed by the general trend of using plastic instead of steel as household appliance materials are bound to be eliminated. For example, enterprises such as Dongfang Yuhong, sankeshu and Yashi Chuang Neng that develop new building materials are equivalent to responding to policies, insight into environmental protection and market trends, keeping up with the pace of the times, taking advantage of the "spring breeze" of policies and opening a new chapter of the times

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