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GB 50210-2018: Standard for construction quality acceptance of building decoration
Status: Valid GB 50210: Evolution and historical versions
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| GB 50210-2018 | English | 1399 |
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Standard for construction quality acceptance of building decoration
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GB 50210-2018
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Code for Construction Quality Acceptance of Building Decoration
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Basic data | Standard ID | GB 50210-2018 (GB50210-2018) | | Description (Translated English) | Standard for construction quality acceptance of building decoration | | Sector / Industry | National Standard | | Classification of Chinese Standard | P32 | | Word Count Estimation | 137,154 | | Date of Issue | 2018-02-08 | | Date of Implementation | 2018-09-01 | | Older Standard (superseded by this standard) | GB 50210-2001 | | Regulation (derived from) | The Ministry of Housing and Urban-Rural Development Announcement No. 1834 of 2018 | | Issuing agency(ies) | Ministry of Housing and Urban-Rural Development of the People's Republic of China; State Administration for Market Regulation | GB 50210-2018: Standard for construction quality acceptance of building decoration---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
1 General
1.0.1 This standard is formulated in order to unify the quality acceptance of architectural decoration projects and ensure the quality of projects.
1.0.2 This standard is applicable to the quality inspection of new construction, expansion, reconstruction and decoration of existing buildings.
1.0.3 This standard should be used in conjunction with the current national standard GB 50300 "Unified Standard for Construction Quality Acceptance of Construction Engineering".
1.0.4 In addition to this standard, the quality inspection of building decoration and fitting-out projects should also comply with the current relevant national standards.
2 terms
2.0.1 Building decoration
In order to protect the main structure of the building, improve the use function of the building and beautify the building, various treatments are carried out on the inner and outer surfaces and spaces of the building by using decorative materials or accessories.
2.0.2 matrix primary structure
The main structure or envelope of a building.
2.0.3 Basic course
Directly bear the surface layer of decoration construction.
2.0.4 detail detail
Parts or decorations used locally in building decoration and renovation projects.
2.0.5 integral layer ceiling
A suspended ceiling in which the seams of the surface materials are not exposed.
2.0.6 board surface ceiling
A suspended ceiling with exposed seams of facing materials.
2.0.7 grille ceiling
3.3.5 The construction unit shall take effective measures to control the pollution and harm to the surrounding environment caused by various dust, exhaust gas, waste, noise, vibration, etc. on the construction site.
3.3.6 The construction unit shall establish management systems related to construction safety, labor protection, fire prevention and anti-virus, etc., and shall be equipped with necessary equipment, utensils and signs.
3.3.7 The building decoration project shall be constructed after the quality acceptance of the base or base. Before decorating existing buildings, the grassroots should be treated.
3.3.8 Before the construction of the building decoration project, there should be a sample of the main materials or a sample room (piece), and it should be confirmed by the relevant parties.
3.3.9 As for the building decoration and renovation project where thermal insulation materials are used on the wall, the type, variety, specification and construction process of the thermal insulation materials used shall meet the design requirements.
3.3.10 The installation and commissioning of pipelines and equipment should be completed before the construction of the building decoration project; if it must be carried out simultaneously, it should be completed before the construction of the facing layer. Decoration works must not affect the use and maintenance of pipelines and equipment. The construction of building decoration projects involving gas pipelines and electrical engineering should comply with relevant safety management regulations.
3.3.11 The electrical installation of building decoration works shall meet the design requirements. Do not bury wires directly.
3.3.12 There should be records for the acceptance of concealed works, and the records should include photos of concealed parts. The inspection batch acceptance of construction quality shall have the original record of on-site inspection.
3.3.13 The environmental conditions for the construction of indoor and outdoor decoration works shall meet the requirements of construction techniques.
3.3.14 The semi-finished and finished products should be well protected during the construction of architectural decoration to prevent pollution and damage.
3.3.15 The construction site should be cleaned up before acceptance of building decoration works. 4 Plastering works
4.1 General provisions
4.1.1 This chapter is applicable to the quality acceptance of sub-projects such as general plastering, thin plastering of insulation layer, decorative plastering and jointing of fair-faced masonry. General plastering works are divided into ordinary plastering and advanced plastering. When there is no requirement in the design, it shall be checked and accepted according to ordinary plastering. General plastering includes cement mortar, cement mixed mortar, polymer cement mortar and plastering gypsum; thin plastering of insulation layer includes thin plastering of polymer mortar outside the insulation layer; decorative plastering includes water brush stone, cut fake stone, Decorative plastering such as dry sticky stone and false face brick; fair-faced masonry pointing includes fair-faced masonry mortar pointing and original paste pointing.
4.1.2 The following documents and records should be checked during acceptance of the plastering project.
1 Construction drawings, design instructions and other design documents of the plastering project;
2 Product qualification certificates, performance inspection reports, entry acceptance records and re-inspection reports of materials;
3 Acceptance records of concealed works;
4 Construction records.
4.1.3 The following materials and their performance indicators shall be retested for the plastering project.
1 Tensile bond strength of mortar;
2 Water retention rate of polymer mortar.
4.1.4 The plastering works shall be inspected and accepted for the following concealed works.
1 Strengthening measures when the total thickness of plaster is greater than or equal to 35mm;
2 Strengthening measures at the junction of different material substrates.
4.1.5 The inspection batch of each sub-project shall be divided according to the following regulations.
1 Every 1000m2 of outdoor plastering works with the same material, process and construction conditions shall be divided into one inspection lot, and if the area is less than 1000m2, it shall also be divided into one inspection lot;
2 Indoor plastering projects with the same material, process and construction conditions shall be divided into one inspection lot for every 50 natural rooms, and less than 50 rooms shall also be divided into one inspection lot. Large-area rooms and corridors can be calculated as per 30m2 of plastered area. 1 room.
4.1.6 The inspection quantity shall meet the following requirements.
1.At least 10% of each inspection batch in the room shall be randomly inspected, and no less than 3 rooms shall be checked. If there are less than 3 rooms, all rooms shall be inspected.
2 For every 100m2 of each outdoor inspection batch, at least one place shall be spot-checked, and each place shall not be less than 10m2.
4.1.7 Before the construction of plastering works on exterior walls, steel and wood door and window frames, guardrails, etc. should be installed, the construction holes on the walls should be blocked and compacted, and the base layer should be treated.
4.1.8 The external corners of the interior walls, cylinders and door openings shall meet the design requirements. When there is no design requirement, no less than M20 cement mortar shall be used as corner protection, the height shall not be less than 2m, and the width of each side shall not be less than 50mm.
4.1.9 When the plastering layer is required to be waterproof and moisture-proof, waterproof mortar should be used.
4.1.10 All kinds of mortar plastering layers should be prevented from quick drying, water flushing, impact, vibration and freezing before setting, and measures should be taken to prevent contamination and damage after setting. The cement mortar plaster layer should be cured under wet conditions.
4.1.11 The plastering layer of the exterior wall and ceiling should be firmly bonded to the base layer and between each plastering layer. 4.2 General plastering works
Ⅰ Master Control Item
4.2.1 The variety and performance of the materials used for general plastering shall comply with the design requirements and the relevant provisions of the current national standards.
Inspection method. check product qualification certificate, entry acceptance record, performance inspection report and re-inspection report.
4.2.2 Before plastering, the dust, dirt and oil stains on the surface of the base should be cleaned up, and should be wetted with water or interface treatment should be carried out.
Inspection method. Check the construction records.
4.2.3 Plastering works should be carried out in layers. When the total thickness of the plaster is greater than or equal to 35mm, strengthening measures should be taken. The plastering on the surface of the junction of different material substrates should take strengthening measures to prevent cracking. When using reinforced mesh, the overlapping width of the reinforced mesh and each substrate should not be less than 100mm.
Inspection method. check concealed project acceptance records and construction records.
4.2.4 The plastering layer and the base layer and between each plastering layer should be firmly bonded, the plastering layer should have no delamination and hollowing, and the surface layer should be free of dust explosion and cracks.
Inspection method. observation; inspection by tapping lightly with a small hammer; inspection of construction records.
Ⅱ General Items
4.2.5 The surface quality of general plastering works shall meet the following requirements.
1 The surface of ordinary plastering should be smooth, clean, and the joints should be flat, and the grid joints should be clear;
2 The surface of high-grade plastering should be smooth, clean, uniform in color and free from smearing lines, and the grid seams and gray lines should be clear and beautiful.
Inspection method. observation; hand touch inspection.
4.2.6 The plastering surface around corners, holes, grooves and boxes should be neat and smooth; the plastering surface behind the pipes should be smooth.
Inspection method. observation.
4.2.7 The total thickness of the plastering layer shall meet the design requirements; cement mortar shall not be applied on the lime mortar layer; the overlay plaster shall not be applied on the cement mortar layer.
Inspection method. Check the construction records.
4.2.8 The setting of the plastering grid joints should meet the design requirements, the width and depth should be uniform, the surface should be smooth, and the edges and corners should be neat.
Inspection method. observation; ruler inspection.
4.2.9 Drip lines (grooves) should be made for parts that require drainage. The drip line (groove) should be neat and straight, the drip line should be high inside and low outside, the width and depth of the drip groove should meet the design requirements, and should not be less than 10mm.
Inspection method. observation; ruler inspection.
4.2.10 The allowable deviation and inspection method of general plastering engineering quality shall comply with the provisions in Table 4.2.10.Note. 1 For ordinary plastering, the inspection of the inner corner square in item 3 of this table is not required;
2 For the plastering of the ceiling, the surface flatness of item 2 in this table may not be checked, but it should be smooth. 4.3 Thin plastering project of insulation layer
Ⅰ Master Control Item
4.3.1 The variety and performance of the materials used for the thin plastering of the insulation layer shall meet the design requirements and the relevant provisions of the current national standards.
Inspection method. check product qualification certificate, entry acceptance record, performance inspection report and re-inspection report.
4.3.2 The quality of the base should meet the requirements of the design and construction plan. Dust, dirt and oil stains on the surface of the base course should be removed. The moisture content of the base should meet the requirements of the construction process.
Inspection method. Check the construction records.
4.3.3 The thin plastering of the insulation layer and its strengthening treatment shall comply with the design requirements and the relevant provisions of the current national standards.
Inspection method. check concealed project acceptance records and construction records.
4.3.4 The plastering layer and the base layer and between each plastering layer should be firmly bonded, the plastering layer should have no delamination and hollowing, and the surface layer should be free of dust explosion and cracks.
Inspection method. observation; inspection by tapping lightly with a small hammer; inspection of construction records.
Ⅱ General Items
4.3.5 The thin plastered surface of the insulation layer should be smooth, clean, uniform in color and free from smudges, and the grid joints and gray lines should be clear and beautiful.
Inspection method. observation; hand touch inspection.
4.3.6 The plastering surface around corners, holes, grooves and boxes should be neat and smooth; the plastering surface behind the pipes should be smooth.
Inspection method. observation.
4.3.7 The total thickness of the thin plaster layer of the insulation layer shall meet the design requirements.
Inspection method. Check the construction records.
4.3.8 The setting of the thin plastering grid joints of the insulation layer shall meet the design requirements, the width and depth shall be uniform, the surface shall be smooth, and the edges and corners shall be neat.
Inspection method. observation; ruler inspection.
4.3.9 Drip lines (grooves) should be made for parts that require drainage. The drip line (groove) should be neat and straight, the drip line should be high inside and low outside, and the width and depth of the drip groove should not be less than 10mm.
Inspection method. observation; ruler inspection.
4.3.10 The allowable deviation and inspection method of the thin plastering project quality of the insulation layer shall comply with the provisions in Table 4.3.10.
Table 4.3.10 Allowable deviation and inspection method for thin plastering of insulation layer 4.4 Decorative plastering project
Ⅰ Master Control Item
4.4.1 The variety and performance of the materials used in the decorative plastering project shall comply with the design requirements and the relevant provisions of the current national standards.
Inspection method. check product qualification certificate, entry acceptance record, performance inspection report and re-inspection report.
4.4.2 Before plastering, the dust, dirt and oil stains on the surface of the base should be cleaned up, and should be wetted with water or interface treatment should be carried out.
Inspection method. Check the construction records.
4.4.3 Plastering works should be carried out in layers. When the total thickness of the plaster is greater than or equal to 35mm, strengthening measures should be taken. The plastering on the surface of the junction of different material substrates should take strengthening measures to prevent cracking. When using reinforced mesh, the overlapping width of the reinforced mesh and each substrate should not be less than 100mm.
Inspection method. check concealed project acceptance records and construction records.
4.4.4 There should be firm bonding between each plastering layer and between the plastering layer and the substrate, and there should be no delamination, hollowing and cracks in the plastering layer.
Inspection method. observation; inspection by tapping lightly with a small hammer; inspection of construction records.
Ⅱ General Items
4.4.5 The surface quality of decorative plastering works shall meet the following requirements.
1 The surface of the water brush stone should be clear, evenly distributed, compact and flat, with consistent color and luster, and there should be no traces of falling grains and splicing;
2.The chop pattern on the surface of the fake stone should be even and straight, with the same depth, and there should be no missing chop;
3.The surface of the dry sticky stone should be consistent in color, free of pulp and sticky, the stone particles should be firmly bonded and evenly distributed, and there should be no obvious black edges at the external corners;
4 The surface of the false face brick should be smooth, with clear grooves, neat seams, consistent color, and no defects such as falling corners, peeling and sanding.
Inspection method. observation; hand touch inspection.
4.4.6 The setting of decorative plastering grid strips (seams) should meet the design requirements, the width and depth should be uniform, the surface should be flat and smooth, and the edges and corners should be neat.
Inspection method. observation.
4.4.7 Drip lines (grooves) should be made for parts that require drainage. The drip line (groove) should be neat and straight, the drip line should be high inside and low outside, and the width and depth of the drip groove should not be less than 10mm.
Inspection method. observation; ruler inspection.
4.4.8 The allowable deviation and inspection method of the quality of decorative plastering shall comply with the provisions in Table 4.4.8.
Table 4.4.8 Permissible deviation and inspection method for decorative plastering 4.5 Clear water masonry pointing project
Ⅰ Master Control Item
4.5.1 The type and performance of the mortar used for jointing of fair-faced masonry shall comply with the design requirements and the relevant provisions of the current national standards.
Inspection method. check product qualification certificate, entry acceptance record, performance inspection report and re-inspection report.
4.5.2 There should be no missing hooks in the joints of fair-faced masonry. Pointing materials should be firmly bonded without cracking.
Inspection method. observation.
Ⅱ General Items
4.5.3 The joints of fair-faced masonry should be horizontal and vertical, the junction should be smooth, the width and depth should be uniform, and the surface should be compacted and smoothed.
Inspection method. observation; ruler inspection.
4.5.4 The color of the mortar joints should be consistent, and the surface of the masonry should be clean.
Inspection method. observation. 5 Waterproofing of exterior walls
5.1 General provisions
5.1.1 This chapter is applicable to the quality acceptance of sub-projects such as exterior wall mortar waterproofing, coating film waterproofing and breathable membrane waterproofing.
5.1.2 The following documents and records should be checked during the acceptance of exterior wall waterproofing works.
1 Construction drawings, design instructions and other design documents of exterior wall waterproofing works;
2 Product qualification certificates, performance inspection reports, entry acceptance records and re-inspection reports of materials;
3 construction plan and safety technical measures documents;
4 Inspection records after rain or on-site water spraying;
5 Acceptance records of concealed works;
6 construction records;
7 The qualification certificate of the construction unit and the induction certificate of the operator.
5.1.3 The exterior wall waterproofing project shall retest the following materials and their performance indicators.
1 Bond strength and impermeability of waterproof mortar;
2 Low-temperature flexibility and impermeability of waterproof coatings;
3 The impermeability of the waterproof and breathable membrane.
5.1.4 The waterproofing of exterior walls shall be checked and accepted for the following concealed engineering items.
1 Nodes of enhanced treatment measures at the junction of different structural materials of the external wall;
2 Nodes of the waterproof layer at deformation joints, door and window openings, pipes passing through external walls, embedded parts and ends;
3 Lap width of waterproof layer and additional layer.
5.1.5 Every 1000m2 of external wall waterproofing works with the same material, process and construction conditions shall be divided into one inspection lot, and those less than 1000m2 shall also be divided into one inspection lot.
5.1.6 Every 100m2 of each inspection batch shall be randomly inspected at least one place, each inspection shall not be less than 10m2, and all joint structures shall be inspected. 5.2 Mortar waterproofing project
Ⅰ Master Control Item
5.2.1 The type and performance of the mortar used for the mortar waterproof layer shall meet the design requirements and the relevant provisions of the current national standards.
Inspection method. check the product qualification certificate, performance inspection report, entry acceptance record and re-inspection report.
5.2.2 The method of mortar waterproof layer in deformation joints, door and window openings, pipes passing through external walls and embedded parts should meet the design requirements.
Inspection method. observation; check acceptance records of concealed works.
5.2.3 There shall be no leakage in the mortar waterproof layer.
Inspection method. check the inspection records after rain or on-site water spraying.
5.2.4 The bonding between the mortar waterproof layer and the base layer and between the layers of the waterproof layer should be firm without hollowing.
Inspection method. observation; lightly tap inspection with a small hammer.
Ⅱ General Items
5.2.5 The surface of the mortar waterproof layer should be dense and smooth without defects such as cracks, sanding and pockmarks.
Inspection method. observation.
5.2.6 The position and construction method of the construction joints of the mortar waterproof layer shall meet the requirements of the design and construction plan.
Inspection method. observation.
5.2.7 The thickness of the mortar waterproof layer shall meet the design requirements.
Inspection method. ruler inspection; inspection of construction records. 5.3 Coating film waterproof project
Ⅰ Master Control Item
5.3.1 The variety and performance of the waterproof coating and supporting materials used for the waterproof layer of the coating film shall meet the design requirements and the relevant provisions of the current national standards.
Inspection method. Check the product factory certificate, performance inspection report, entry acceptance record and re-inspection report.
5.3.2 The method of coating waterproof layer in deformation joints, door and window openings, pipes passing through external walls, embedded parts and other parts shall meet the design requirements.
Inspection method. observation; check acceptance records of concealed works.
5.3.3 There must be no leakage in the waterproof layer of the coating film.
Inspection method. check the inspection records after rain or on-site water spraying.
5.3.4 The waterproof layer of the coating film and the base layer should be firmly bonded.
Inspection method. observation.
Ⅱ General Items
5.3.5 The surface of the waterproof layer of the coating film should be flat, and the coating should be uniform, without defects such as rundown, exposed bottom, air bubbles, wrinkles and warped edges.
Inspection method. observation.
5.3.6 The thickness of the waterproof layer of the coating film shall meet the design requirements.
Inspection method. needle measurement method or cut a 20mm×20mm real sample and measure it with a caliper. 5.4 Breathable membrane waterproof project
Ⅰ Master Control Item
5.4.1 The variety and performance of the breathable membrane and supporting materials used for the waterproof layer of the breathable membrane shall meet the design requirements and the relevant provisions of the current national standards.
Inspection method. Check the product factory certificate, performance inspection report, entry acceptance record and re-inspection report.
5.4.2 The waterproof layer of the breathable membrane shall meet the design requirements in deformation joints, openings of doors and windows, pipes passing through external walls, and embedded parts.
Inspection method. observation; check acceptance records of concealed works.
5.4.3 There must be no leakage in the waterproof layer of the breathable membrane.
Inspection method. check the inspection records after rain or on-site water spraying.
5.4.4 The waterproof and breathable membrane should be firmly bonded to the base layer.
Inspection method. observation.
Ⅱ General Items
5.4.5 The surface of the waterproof layer of the air-permeable membrane shall be flat and free from defects such as wrinkles, scars, and cracks.
Inspection method. observation.
5.4.6 The laying direction of the waterproof and breathable membrane should be correct, the longitudinal lap joints should be staggered, and the lap joint width should meet the design requirements.
Inspection method. observation; ruler inspection.
5.4.7 The overlapping joints of the waterproof and breathable membrane shall be firmly bonded and sealed tightly;
Inspection method. observation.
6 Door and window engineering
6.1 General provisions
6.1.1 This chapter is applicable to the quality acceptance of the installation of wooden doors and windows, metal doors and windows, plastic doors and windows and special doors, as well as the installation of door and window glass. Metal doors and windows include steel doors and windows, aluminum alloy doors and windows, painted galvanized steel doors and windows, etc.; special doors include automatic doors, full glass doors and revolving doors, etc.; door and window glass includes flat, heat-absorbing, reflective, hollow, sandwich, wire, frosted, tempered, fireproof and patterned glass, etc.
6.1.2 The following documents and records should be checked during the acceptance of doors and windows.
1...
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