Implementation of relevant codes and standards for protective coating engineering

1、 Coating management procedure of protective coating (in sequence) 1 Coating engineering design 2 Coating engineering design demonstration 3 Coating engineering report 4 Coating engineering budget 5 Coating engineering bidding 6 Inspection and approval of non concealed works before coating by the coating company (coating quality of steel structure factory surface treatment and first primer coating, laying quality of waterproof layer at contact side of concrete structure and soil and strength quality of concrete structure) 7 Preparation of coating scheme 8 Coating inspection and field coating test 9 Modification of coating scheme 10 Base course surface treatment (supervision personnel of major project quality or general project quality supervision personnel involved in the project), implementation of construction log system 11 Steel structure coating, concrete structure coating and sealing coating 12 Steel structure coating intermediate coating 13 Steel structure coating, concrete structure coating surface coating 14 Final inspection and evaluation of coating engineering quality 15 Completion acceptance and delivery 2 Coating engineering design and design demonstration 1 Relevant specifications and regulations (1) gb50045 code for design of external corrosion protection of industrial equipment and pipelines (2) hgj34 code for design of external corrosion protection of chemical equipment and pipelines (3) Shj22 code for anticorrosion design and construction of equipment and pipeline coating in petrochemical enterprises (4) Hg / t20587 code for anticorrosion design of chemical buildings (5) gbj73 code for design of clean workshop (6) gb50037 code for design of building ground (2) basis for design demonstration of coating engineering Hgj229 code for construction and acceptance of anticorrosion engineering of industrial equipment and pipeline, 2.1.1.1 series has " The construction drawing paper industry has been jointly examined " 3 Demonstration of construction scheme of coating engineering: professional societies, professional associations, colleges and universities, scientific research institutes accept the requirements of the construction party, participate in the technical demonstration and review of construction scheme of coating engineering, which can avoid the technical errors that may occur due to the limitations of the coating field for the designers, and it is very necessary to carry out the coating engineering smoothly and reduce the losses III quality standard of base course and inspection on construction site 1 The coating engineering matrix and welding quality of equipment and pipeline can refer to 2.2 "requirements for matrix and welding" in hgj229 code for construction and acceptance of industrial equipment and pipeline anti-corrosion engineering 2 The base strength and performance quality of buildings and structures for the coating engineering of buildings and structures can refer to the following specifications (1) article 2.1.1 of gb50212 code for construction and acceptance of building anti corrosion engineering: "the base course shall be firm and flat" (2) article 4.1.3 of gb50046 code for anticorrosion design of industrial buildings "crack control grade, concrete tensile stress limit coefficient 〆 CT and maximum allowable crack width of concrete structural members" 4.1.4 "concrete strength grade" 4.1.5 "maximum water cement ratio and minimum cement consumption of concrete" 5.1.7.1 "concrete strength grade and thickness of indoor ground cushion, concrete strength grade and thickness of outdoor ground cushion, reinforcement in cushion of outdoor ground and large area ground" 5.1.7.4 "waterproof or damp proof measures under the ground cushion" 5.1.8 "when the protective surface course is set on the precast slab, the thickness of the whole pouring layer of reinforced concrete shall be set" 5.1.9 "drainage slope of ground floor and floor floor under the action of liquid medium" 5.1.14 "anti corrosion skirting board and its height shall be set at the junction of ground, wall and column" 5.1.16 "the distance between the joints of indoor concrete cushion, protective ground and outdoor concrete cushion and protective ground" 5.3 "longitudinal slope and pit slope of trench" 5.3.4 "waterproof measures for underground exhaust ditch and pit" 6.1.2.2 "the tank body at the storage tank and sewage shall be cast-in-place reinforced concrete" 6.1.2.2 "expansion joint is not set for tank body of storage tank and sewage treatment tank" 6.1.4 "concrete strength grade and impermeability grade of storage tank and sewage treatment tank" 6.1.4.2 "allowable maximum crack width of storage tank and sewage treatment tank" 6.1.4.3 "the thickness of the side wall and bottom plate of the storage tank and sewage treatment tank, and the internal surface of the concrete should not be leveled with cement mortar" Clause 6.1.4.4 "minimum diameter of stressed reinforcement and minimum thickness of reinforcement cover for storage tank and sewage treatment tank" 6.1.7 "the underground part of storage tank and sewage treatment tank shall be provided with waterproof layer or anti tank layer on the surface contacting with soil" 6.3.4.1 "concrete strength grade, impermeability grade and water cement ratio of exhaust funnel" 6.3.4.2 "minimum thickness of exhaust pipe wall and minimum thickness of concrete cover of circumferential reinforcement" 6.3.4.3 "allowable maximum crack width of exhaust funnel" 6.3.5.1 "the thickness of the protective coating applied to the inner wall of the exhaust funnel, and the thickness of the protective coating applied to the inner surface of the lined cylinder wall" 6.3.6.2 "protective measures for inner surface of carbon steel inner cylinder of exhaust funnel, and protective coating for outer surface" 6.3.11.1 "protective coating for outdoor ladder, platform and handrail of exhaust funnel" (3) article 3.0.2 of Hg / t20587 code for anticorrosion design of chemical buildings "quality of concrete base and leveling of concrete base" 5.2.10 "coating construction of cement mortar and concrete base" IV base course surface treatment 1 Steel surface treatment: gb8923 rust grades and derusting grades of steel surfaces before painting (1) quality grades of steel surface treatment (2) roughness of steel surface treatment (3) interval between steel surface treatment and the first primer after painting 2 5.2.10 "coating construction of cement mortar and concrete base" in Hg / t20587 code for anticorrosion design of chemical buildings (1) in gb50209 code for construction and acceptance of building ground, "the moisture content of base course shall be less than 9%" (2) in gb50212 code for construction and acceptance of anti corrosion engineering of buildings, "the moisture content of the base layer shall be less than 6%" 5 Coating and engineering acceptance 1 Coating of industrial equipment and pipeline: article 8.1.7 in hgj229 code for construction and acceptance of anti corrosion engineering of industrial equipment and pipeline "the number and thickness of coating layers shall meet the design requirements It is qualified if the negative error is less than or equal to 5% 2 Coating of buildings and structures: gb50212 code for construction and acceptance of building anti corrosion engineering 3 Coating of steel structure: article 4.11.4 of gb50205 code for construction and acceptance of steel structure engineering (1) "outdoor coating thickness, indoor coating thickness, allowable negative deviation is 25 μ n when there is no design requirement" 4 Coating of steel structure surface: in article 4.4.3 of sl105-95 specification for corrosion protection of water (power) Engineering (Engineering) metal structure, "the thickness of more than 85% measuring points shall reach the design thickness, and for measuring points that do not reach the design thickness, the minimum thickness shall not be less than 85% of the design thickness (5 measuring points per 10m2)." 5 Coating in oil storage tank: in gb13348 electrostatic safety code for liquid petroleum products 6 and gb15599 lightning safety code for petroleum and petroleum facilities, the surface resistivity of electrostatic conductive coating PR ≤ 109 Ω M (1) pinhole spark detection of electrostatic conductive coating 7 Coating application of clean workshop (1) gbj71 code for design of clean room workshop (2) gbj73 code for design of clean workshop (3) gbj243 coating application of clean system 8 Coating application of building floor: gb50209 code for construction and acceptance of building floor 9 Control of environmental and technical conditions for coating (1) ambient temperature (2) ambient humidity (3) coating and coating conditions (4) testing instrument (6) quality testing and evaluation of coating engineering 1 "Quality inspection and evaluation of industrial equipment and pipeline anti-corrosion engineering" in "Shanghai industrial equipment installation engineering quality inspection and evaluation regulations" for industrial equipment and pipeline coating 2 Coating of buildings and structures: gb50224 standard for quality inspection and evaluation of building anti-corrosion engineering 4 Coating of steel structures: gb50205 standard for quality inspection and evaluation of steel structures 5 Testing instruments 7 Quality inspection and evaluation items of coating engineering 1 Guarantee project: technical data unrelated to construction factors, such as design documents, design changes, material certificates, coating re inspection reports, construction plans and coating processes, technical demonstration of design documents and construction plans, etc 2 Basic items: technical contents related to construction factors specified in the specifications and standards, such as visual inspection of coating appearance quality (such as rust, sagging, missing coating, MIS coating, shrinkage cavity, etc.), spark detection of coating pinhole, detection of coating adhesion strength and interlayer adhesion strength 3 Allowable deviation items: coating times (number of layers) and coating thickness 8 Coating product quality standard, model, classification and product selection 1 Gb2705 coating product classification, designation and model 2 National standard for coating product performance test (standard number omitted) (1) Performance test of coating products: appearance, specific gravity, solid component, viscosity, fineness, etc (2) construction performance test of coating products: viscosity, covering power, coating property, leveling property, grinding, drying time, etc (3) general performance test of coating products: coating appearance, gloss, hardness, elasticity, impact, adhesion, wear resistance, etc (4) special use performance test of coating products: water resistance, heat resistance, cold resistance, temperature resistance, light resistance, weather resistance, heat and humidity resistance, salt fog resistance, rust resistance, mildew resistance, insulation, chemical corrosion resistance, electrostatic conductivity (resistivity), radiant heat rate, etc