Synthetic Materials Ground Level Quality Control Standard (Draft for Soliciting Opinions)

Foreword

Entrusted by the Municipal Education Bureau, Shenzhen Construction Research Institute Co. In the process of preparation, the preparation team has been extensively investigated and researched, carefully summed up the practical experience, and made reference to relevant international standards and advanced foreign standards, and formulated this standard on the basis of extensive solicitation of opinions.

The main technical contents of this procedure are: 1 General Provisions; 2 Terms; 3 Basic Regulations; 4 Technical Requirements; 5 Construction Management; 6 Synthetic Materials for Runway Surface Construction; 7 Composite Material Ball Surface Layer Construction; 8 Artificial Turf Construction; 9 Acceptance and Test; 10 Site management and maintenance of composite materials; appendices, etc.

This standard is managed by Shenzhen Housing and Construction Bureau, and Shenzhen Institute of Building Research Co., Ltd. is responsible for the interpretation of specific technical content. If you have any comments or suggestions during the implementation process, please send it to Shenzhen Institute of Building Research Co., Ltd. (Address: No.29 Meilu 3rd Road, Meilin, Futian District, Shenzhen, zip code: 518049) for future reference.

This standard is composed of: Shenzhen Institute of Building Research Co., Ltd.

1 General

1.0.1 To standardize the control of the quality of the ground floor of the sports ground of synthetic materials, and to achieve advanced technology, economical rationality, environmental friendliness, safe application and quality assurance, this standard is formulated.

1.0.2 This standard is applicable to the design, material selection, construction, test and acceptance of the ground floor of sports grounds for teaching and gymnasiums used in the construction and reconstruction of new and reconstructed and expanded buildings in Shenzhen. Other types of synthetic material sports grounds (playgrounds, community fitness venues, etc.) Urban greenways, children's activity venues, etc.) Refer to this standard according to the type of materials and construction process.

1.0.3 In addition to meeting this standard, the quality control of the ground floor of a synthetic sports ground shall comply with the relevant national standards.

2 Terms and classification

2.1 Terms

2.1.1 Synthetic Sports Ground Synthetic Sports Surface

Sports ground floor paved with a polymer synthetic material. According to the use of functions, it is mainly divided into runway surface layer, ball scene layer and artificial turf.

2.1.2 In-situ casting surface

Prefabricates and other raw materials produced by the factory are cast on the surface of the pavement.

2.1.3 prefabricated surface

At the factory, the coils or blocks are pre-prepared to be bonded or assembled on the surface.

2.1.4 artificial turf artificial turf

Imitation grass-like synthetic fibers are embedded in a woven base fabric, and the back surface is coated with a fixed-effect coating to simulate the performance of a natural grass sports field.

2.1.5 artificial turf surface

The ground floor, which is paved with artificial turf, is filled with quartz sand and rubber granules if necessary.

2.1.6 Prefabricated rubber roll

Prefabricated at the factory, used for the laying of rubber flooring on sports grounds.

2.1.7 polyurethane colloids polyurethane major ingredient

The main raw material that constitutes the cast-in-place polyurethane surface layer, divided into single components and two components.

2.1.8 Acrylic colloids acrylic acid major ingredient

The main raw material that constitutes the cast-in-place acrylic surface layer.

2.1.9 Filling particles infill granules

Filled with particles in cast-in-place finishes and artificial turf.

2.1.10 anti-skidding granules

The colloidal material is bonded to the surface of the cast-in-place surface layer to provide anti-slip and wear-resistant particles.

2.1.11 primer layer of synthetic surface

The lower layer of the cast-in-place surface layered structure is formed by mixing the colloidal main material and the filling particles and then solidifying.

2.1.12 upper layer of synthetic surface

The upper layer of the cast-in-place surface layer structure laid in layers is formed by mixing the colloidal main material and anti-slip particles and curing.

2.1.13 Adhesive Adhesive

When artificial turf and prefabricated surface layer are applied, adhesives used for splicing and adhesives for bonding materials to the base layer are used.

2.1.14 Marking paint

Used as a special paint for the marking of the ground layer of synthetic materials.

2.1.15 Tensile strength

In a tensile test, the maximum tensile stress that the specimen undergoes until it breaks.

2.1.16 Elongation at break

The ratio of the displacement of the material when it is broken and the original length.

2.1.17 Aging resistance

Sports ground floor materials have the property of delaying the delay of aging.

2.1.18 flame retardance

The floor of the composite sports ground has the property of delaying flame spread.

2.1.19 release rate

The amount of target hazardous material emitted into the air from the surface of the surface material per unit area per unit time.

2.1.20 Volatile organic compounds (TVOC) total volatile organic compounds

Under normal pressure, the boiling point of 50 °C ~ 260 °C various organic compounds.

2.2 Classification

2.2.1 Synthetic materials The ground layer of the sports ground is divided into polyurethane type surface layer, acrylic surface layer, polyurea surface layer and the like according to the material type.

2.2.2 Synthetic materials The ground floor of the sports ground is divided into cast-in-place and prefabricated types according to the paving method.

2.2.3 cast-in-place surface layer according to the structure is divided into breathable, composite, hybrid, all-plastic and so on.

2.2.4 The prefabricated surface layer is divided into prefabricated coils and blocks by shape.

2.2.5 Artificial turfs are divided into filled and unfilled types according to the structure.

3 Basic regulations

3.0.1 The material selection and design of the ground floor of the composite sports ground shall be in accordance with GB/T 14833, Tracks for Synthetic Tracks, Primary Sports Equipment and Venues, Part 11: Surfaces for Synthetic Materials, GB/T 19851.11, Artificial Materials. Requirements and testing methods for sports venues Part 3: Artificial grass surface for football fields GB/T 20033.3, Artificial Grass for Sports GB/T 20394, Requirements and testing methods for sports fields Part 1: Track and field venue GB / T 22517.6, "Technical Regulations for Sports Facilities in Primary and Secondary Schools" JGJ/T 280.

3.0.2 Synthetic materials The ground floor of sports grounds shall be designed by design units with design experience and corresponding performance.

3.0.3 Basic acceptance before surface construction. The quality control and acceptance of the site foundation shall comply with the current national standard “Unified Standard for Acceptance of Construction Quality of Buildings” GB 50300, “Code for Acceptance of Construction Quality of Foundations for Buildings” GB 50202, “Code for Construction and Acceptance of Asphalt Pavements” GB 50092, and “Concrete Concrete “Pavement Construction and Acceptance Specifications” GBJ97 and other standards. Grass-roots harmful substances must not adversely affect surface quality.

3.0.4 The unit responsible for the construction of the ground layer of the composite material sports ground shall have corresponding construction experience, and shall have a sound engineering quality management system, a safety production management system and a quality inspection system.

3.0.5 The ground floor construction of the compound material playground in schools and kindergartens shall not affect education and teaching activities.

3.0.6 The variety of materials selected for the composite sports venue should be determined according to the requirements of design, construction, etc. The selected materials should meet the requirements of environmental protection and should not have harmful effects on the human body, organisms and the environment.

3.0.7 Raw materials entering the site shall be witnessed and tested. Unqualified materials shall not be used for the project.

3.0.8 After the completion of the construction, the physical properties of the surface layer of synthetic materials and the content of harmful substances shall be witnessed and checked. Acceptance before passing can be put into use.

3.0.9 It is not allowed to add any materials other than formulas on the construction site.

3.0.10 It is strictly prohibited to use gasoline and solvents containing benzene, toluene, xylene, carbon disulfide, and methylene chloride during the construction of the surface layer of synthetic materials.

3.0.11 The geological period of the synthetic material field shall not be less than 3 years. The warranty should include blistering, cracking, delamination, turf perimeters, and open seams, grass tufts, etc.

3.0.12 After the completion of the ground floor of the composite sports ground, the user shall be trained in the daily maintenance and maintenance of the site.

4 Technical requirements

4.1 General requirements

4.1.1 When the raw materials come into the market, the supplier shall provide quality certification documents to the demanding party in accordance with the stipulated batch, and shall submit inspections in batches. The inspection unit shall be a third-party testing agency with relevant qualifications.

4.1.2 The mass percent of the particles used for filling the runway primer layer of the breathable synthetic material shall not exceed 80%.

4.1.3 The mass percentage of filler particles used in the composite layer of synthetic synthetic track materials and synthetic materials shall not exceed 25%.

4.1.4 The use ratio of inorganic fillers on the runway and ball surface layer of synthetic materials shall be less than 60%.

4.1.5 The mass percentage of rubber anti-skid granules should be greater than 20%.

4.2 Limits of Raw Material Harmful Substances

4.2.1 The limits of harmful substances in materials such as ground colloid materials, prefabricated rubber coils, blocks, and rubber granules in the composite material field shall meet the requirements in Table 4.2.1.

Table 4.2.1 Limits of Raw Material Harmful Substances in Ground Floor of Composite Material Yard

4.2.2 The content of harmful substances in adhesives used for bonding of artificial turf, prefabricated coils, etc. shall meet the requirements of GB 18583.

4.2.3 The content of harmful turf of artificial turf should meet the requirements of Table 4.2.3.

Table 4.2.3 Limits of artificial turf pests

4.3 Prefabricated Coil, Artificial Turf Physical Properties

4.3.1 Prefabricated coil

The physical properties of prefabricated coils are to comply with the requirements of Table 4.3.1.

Table 4.3.1 Physical Properties of Prefabricated Rolls

4.3.2 Artificial turf

4.3.2.1 Physical and chemical properties

The physical and chemical properties of artificial turf should meet the requirements of Table 4.3.2.1.

Table 4.3.2.1 Requirements for physical and chemical properties of artificial turf

4.3.2.2 Mechanical properties

Artificial turf mechanical properties should meet the requirements of Table 4.3.2.2.

Table 4.3.2.2 Artificial turf mechanical properties requirements

4.4 Composite Material Surface Physical Properties

4.4.1 The physical properties of the track surface of synthetic materials shall comply with the requirements of Table 4.4.1.

Table 4.4.1 Synthetic material runway surface physical properties

4.4.2 The physical properties of the synthetic ball sphere shall comply with the requirements of Table 4.4.2.

Table 4.4.2 Physical properties of the ground floor of synthetic materials

4.5 Requirements for Limits of Harmful Substances in Composite Materials

4.5.1 The content of harmful substances in the surface layer of cast-in-place synthetic material shall meet the requirements in Table 4.5.1.

Table 4.5.1 Limits of harmful substances on the surface of cast-in-place synthetic material yards

4.5.2 Indoor composite materials The environmental quality of sports venues shall comply with the relevant requirements of GB 50325 for formaldehyde, benzene and TVOC.

4.5.3 The surface odor level assessment of synthetic material surface shall not be greater than Grade 2.

5 Construction Management

5.1 General requirements

5.1.1 The construction unit shall be constructed according to the engineering design drawings, and shall not modify the engineering design without authorization.

5.1.2 The construction unit shall inspect the raw materials in accordance with the engineering design requirements, relevant standards and the contract, and shall use the products after passing the experience.

5.1.3 Prior to construction, plans for construction organization design or construction shall be prepared and a project quality management system, safety production management system and quality inspection system shall be established.

5.1.4 The construction unit shall establish a self-inspection, mutual inspection and full-time personnel inspection system for each process, and shall have a complete construction inspection record.

5.1.5 Strictly control the selection of raw materials, inspection prior to entry, and process control during construction.

5.1.6 The proportion of various raw materials shall be determined before the pre-construction test trial match. Once it is determined, the construction shall be measured according to the mix ratio, and any personnel shall not be arbitrarily adjusted.

5.1.7 Before the construction of cast-in-place surface, the model shall be produced according to the formula and construction process under the witness of the supervisor. During the construction, the model shall be used as the construction standard for construction.

5.2 Preparation before Construction

5.2.1 Technical preparation. Gradually familiar with the drawings to understand the design intent, and organize the construction unit, design and construction tripartite review of the sports field design drawings, the construction staff to arrange the construction program and technical disclosure.

5.2.2 site preparation. Investigate the site and collect weather information to ensure that the construction progress is not affected by the temperature and humidity of the climate. Temporary offices and temporary material warehouses were set up to delineate the construction site.

5.2.3 Production preparation. Through the cooperation of the construction unit, the necessary construction permit formalities are obtained; the construction unit provides the construction unit with the certificate of origin and certificate of the origin of the raw materials; a third-party qualified testing agency conducts sample inspection on the raw material samples; implements the supply of mechanical tools, allocates construction forces, and organizes labor force Admission, organization of personnel for safety production education and technical disclosure, all departments to develop work plans and operating rules.

5.3 Safe and Civilized Construction Measures

5.3.1 Fully implement the responsibility system for safety production, and establish and implement a step-by-step post responsibility system in accordance with the principle of “who is responsible for management”.

5.3.2 Establish a safe and civilized construction management team to strengthen the management and education of workers' safe and civilized construction, and be responsible for the rewards and penalties.

5.3.3 The site has the necessary quality assurance, safe production, and civilized construction publicity. There are safety propaganda slogans and safety warning signs in the main construction sites, main passages and dangerous areas. All signs are as uniform as possible to form standardization.

5.3.4 Stacking of all material tools shall be stacked according to the area determined by the general layout drawing of the construction site, and shall be marked at the conspicuous places in the area and stacked neatly. Properly arranged material houses and equipment shall be well protected against moisture, leakage and fire. .

5.3.5 The management of volatile solvents used in the field shall comply with the relevant national regulations on dangerous goods management.

6 Composite Runway Surface Construction

6.1 General requirements

6.1.1 During the construction of the composite material runway, the minimum temperature in the construction environment during the daytime should be greater than 15°C, and the minimum temperature in the evening should not be lower than 8°C. Class 5 and

Above, wet conditions and wet conditions after the rain, surface construction should not be carried out.

6.1.2 There should be mechanical equipment that meets the construction requirements.

6.1.3 The construction, batching and mixing sites should be cleaned up, and the ingredients and the surrounding area should be kept flat and clean;

6.1.4 The surface of cement concrete foundation shall be covered with a waterproof layer.

6.2 Basic acceptance

6.2.1 The asphalt concrete base layer shall be maintained for more than 10 days, and the cement concrete base layer shall be maintained for more than 28 days;

6.2.2 The base surface should be calendered, clean and dry, free of oil, and should not have ruts, hard knots, sinks, cracks or openings. Concrete-based expansion joints should be cleaned and there should be no dust in the expansion joints.

6.2.3 The site should have good drainage performance, and the foundation flatness and slope should meet the design requirements.

6.2.4 The density of the asphalt base shall not be less than 95%, and the strength of the concrete foundation shall not be less than C25.

6.3 Raw Material Storage

6.3.1 The construction site should be equipped with storage containers and should meet the following requirements:

1 The quantity and capacity of storage containers should meet the requirements for different varieties and supply quantities;

2 When the storage container is used, there should be no debris or clear water inside;

3 storage containers should be sealed, non-absorbent;

4 storage containers should be easy to store and access;

5 There should be rain protection measures when accessing.

6.3.2 Different types of materials should be stored in different storage containers, and the storage containers should be identified. The contents of the identification should include the variety and time limit of use.

6.3.3 The ambient temperature of the raw material storage site should not be less than 8°C.

6.4 Hybrid Composite Runway

6.4.1 The surface of the composite composite material should be constructed in the following order:

1 testing, leveling the venue;

2 isolation layer;

3 adhesive layer construction;

4 spraying or scattering non-slip particle surface layer;

5 crossed lines.

6.4.2 When laying the primer layer, the polyurethane compound rubber and filler particles should be mixed in proportion and spread on the base layer. The thickness of the polyurethane adhesive should meet the design requirements.

6.4.3 The laying of the surface layer of a hybrid synthetic material shall comply with the following provisions:

1 Sprinkle granules craft: The two-component polyurethane rubber material stirs according to the proportion, spreads on the bottom adhesive layer, sprinkles the non-slip particle then, also may brush the protective glue on the non-slip particle;

2 spray-type process: the surface layer of glue and anti-skid particles in a certain proportion of mixing, spray evenly in the primer layer.

6.4.4 Cleaning and marking should meet the following requirements:

1 According to the design requirements, the surface of the composite material shall be fully paved and the site shall be cleaned as a whole. Runway synthetic material surface should be dry, no moisture;

2 Use marking paint according to design requirements.

6.5 Breathable synthetic track

6.5.1 The construction of breathable synthetic track surface shall be performed in the following order:

1 testing, leveling the venue;

2 isolation layer;

3 brushing primer;

4 Laying a rubber-filled primer layer;

5 Spray anti-slip particle surface layer;

6 crossed lines.

6.5.2 The laying of breathable composite track surfaces shall comply with the following provisions:

1 The primer layer is made of polyurethane adhesive and filled rubber granules and stirred in a certain proportion and spread on the base layer with a paving machine;

The two-sided adhesive layer shall be uniformly sprayed on the primer layer after mixing the surface layer glue and the non-slip particles in a certain proportion.

6.5.3 Lines should meet the following requirements:

1 The surface of the composite material shall be fully laid out according to the design requirements and the site shall be cleaned as a whole. Runway synthetic material surface should be dry, no moisture;

2 Use marking paint according to design requirements.

6.6 Prefabricated composite runways

6.6.1 The prefabricated synthetic track surface construction shall be carried out in the following order:

1 Testing, grinding, leveling the site;

2 isolation layer;

3 adhesive layer;

4 prefabricated rubber track surface;

5 crossed lines.

6.6.2 The laying of prefabricated synthetic track surfaces shall comply with the following provisions:

1 In the case of any bending or folding of prefabricated rubber track membranes, there should be no cracking or cracking;

2 When the pavement is completed, the surface layer is free from delamination or empty drums, the joints should be smooth, there should be no gaps in the joints and stepwise bumps should not occur.

3 roots are lined with marking paint according to design requirements.

6.7 Construction Inspection

6.7.1 The construction unit is responsible for the overall inspection of the flatness, slope, thickness, water level, and rule line position of the entire site. After determining that all the design requirements are met, the data and records shall be submitted to the construction unit for completion and the construction unit shall be required to complete the work as soon as possible. Organize acceptance of the site.

6.7.2 The person in charge of the construction site should lead other personnel to fully clean up the site, especially for machinery, materials, circuits, and sanitation, and to ensure that the construction team must be kept as it is before the construction team comes out. The withdrawal of civilization.

7 Synthetic Material Ball Scene Construction

7.1 General requirements

7.1.1 Construction environment The minimum temperature in the daytime should be greater than 15°C, and the lowest temperature in the evening should not be lower than 8°C. The surface layer construction shall not be carried out under the conditions of Grade 5 winds and above, wet weather and wet conditions after the rain.

7.1.2 There should be mechanical equipment that meets the construction requirements.

7.1.3 The construction, batching and mixing sites should be cleaned up, and the ingredients site and surroundings should be kept flat and clean.

7.1.4 The basic acceptance shall meet the requirements of 6.2 of this Regulation.

7.1.5 Raw material storage should meet the requirements of 6.3 of this regulation.

7.1.6 Construction self-test should meet the requirements of 6.8 of this regulation.

7.2 acrylic surface course

7.2.1 Acrylic surface coating construction should be carried out in the following order:

1 testing, leveling the venue;

2 isolation layer;

3 grass-roots structural layer;

4 middle structural layer;

5 elastic layer;

6 non-slip layer;

7 finishes;

8 crossed lines.

7.2.2 Acrylic surface coating construction shall meet the following requirements:

1 In the construction of the basic structural layer, after reinforcing the asphalt filler and mixing sand and water, it should be painted twice and the ground should be leveled;

2 During the construction of the intermediate structural layer, the layered squeegee shall be applied after the acrylic reinforcing filler is mixed with sand and water;

3 When the elastic layer is applied, the acrylic adhesive and the filling rubber particles should be mixed in proportion, and the layers should be drawn to the specified thickness.

4 When the anti-slip layer is applied, it should be stratified and scraped after the acrylic color concentrate quartz sand and water are stirred;

5 When the finish layer is applied, apply acrylic colorant concentrate and stir with water, then apply a layered squeegee;

6 When scribing, use the acrylic color concentrate to mark the white border twice.

7.3 Polyurethane Course Course

7.3.1 Polyurethane surface course construction should be carried out in the following order:

1 testing, leveling the venue;

2 isolation layer;

3 polyurethane primer layer;

4 Polyurethane topcoat;

5 Polyurethane reinforced layer;

6 Polyurethane finish

7 line.

7.3.2 The polyurethane surface coating construction shall meet the following requirements:

1 Ingredients should be mixed evenly according to the product process ratio;

2 Bubbles should be avoided when coating the sealer.

3 When laying an elastic polyurethane primer layer, an elastic polyurethane surface layer, an elastic polyurethane layer, and an elastic polyurethane surface paint, the flatness of the previous layer shall be checked first, and the preceding layer shall be uniformly spread from the inside to the outside after being dried and stabilized;

4 When laying elastic polyurethane surface layer, use belt type sanding machine to grind back and forth in the venue, so that the surface layer is flat;

5 Level the test water, pour the water on a well-grounded site, check if there is any water accumulation area, mark the water accumulation area with paint if there is any stagnant water, and fill it with a well-mixed base material;

6 Apply a flexible polyurethane topcoat, uniformly mix the polyurethane topcoat and the anti-slip powder (silicon dioxide) in a certain proportion, and apply it to a well-prepared site with a roller or spray coating;

7 The trimming area should be trimmed, and trimmers should check the thickness and flatness at any time.

8 Use marking paint according to design requirements.

7.3.3 Silicon modified polyurethane surface layer construction is performed in accordance with the requirements of this section.

7.4 Precast Sheet Surface Course

7.4.1 The prefabricated coil surface construction shall be carried out in the following order:

1 Testing, grinding, leveling the site;

2 isolation layer;

3 adhesive layer;

4 grid layer;

5 prefabricated synthetic material sheet surface layer;

6 Cold welding joints;

7 line.

7.4.2 The laying of prefabricated coil surface shall meet the following requirements:

1 There should be no cracking or cracking of prefabricated coils under any bending or folding.

2 When the pavement is completed, the surface layer is free from delamination or empty drums, the joints should be smooth, there should be no gaps in the joints and stepwise bumps should not occur.

3 roots are lined with marking paint according to design requirements.

7.5 Polyurea Synthesis Surface

7.5.1 Polyurea elastomer surface course construction should be carried out in the following order:

1 testing, leveling the venue;

2 primary structural layer;

3 isolation layer;

4 Primer;

5 middle structural layer;

6 finishes;

7 finish;

8 crossed lines.

7.5.2 The construction of polyurea elastomer surface course shall meet the following requirements:

1 In the construction of the basic structural layer, after reinforcing the asphalt filler and mixing sand and water, it should be painted twice and should be cracked and leveled;

2 Primer is coated with professional primer and roller coating. The coating should be even and without any coating. Knife with paint, now with the current use;

3 The intermediate structural layer shall be conducted within 24 to 48 hours after the primer is applied. The site shall be coated by delamination. After each layer of squeegee is applied, it shall be immediately examined to find defects and be disposed of;

4 The construction of the facing layer shall be carried out after the polyurea coating is finished for 12 hours. Before construction, ensure that the base surface is clean and dry. Topcoats are applied by brush or roller;

5 roots are lined with marking paint according to design requirements.

8 Artificial turf construction

8.1 General requirements

8.1.1 The surface layer construction shall not be carried out under the conditions of Grade 5 winds and above, wet conditions after rain and rain.

8.1.2 The turf bonding environment temperature should be better than 15 °C.

8.1.3 There should be mechanical equipment that meets the construction requirements.

8.1.4 The basic acceptance shall meet the requirements of 6.2 of this regulation.

8.1.5 Raw material storage should meet the requirements of 6.3 of this regulation.

8.1.6 Construction self-test should meet the requirements of 6.8 of this regulation.

8.2 Construction Process

8.2.1 Artificial turf surface construction should be carried out in the following order:

1 Site foundation acceptance;

2 pavements;

3 artificial turf bonding;

4 review point line;

5 Filled site pavement fillings.

8.2.2 Artificial turf paving should meet the following requirements:

1 Positioning should be carried out, the positioning of the line is accurate, and the function line is marked straight and clear;

2 Place the grass roll and push the turf according to the site positioning line code to ensure that the edge line does not bend and the grass surface has no arching and folding;

3 After turf pushing, it should be awake, and the stretch rate should be greater than 95%;

4 The special cutting knife should be used to cut off the excess base cloth in a flush manner. The grass seedling shall not be cut, and the seam gap shall not be greater than 3mm.

8.2.3 Artificial turf bonding shall meet the following requirements:

1 Before bonding, it is necessary to clean the underside of the turf and connect the belt to ensure that the surface is dry and free of water;

2 Brush the special glue on the bottom of the turf seam and the connecting belt respectively. After the glue is dry, stick it and hammer it with a rubber mallet to achieve no defects and no degumming at the joint. No bossing phenomenon is allowed.

3 It should be maintained for at least 3 days after completion of paving. Care should be taken during maintenance to avoid exposure, flooding, and movement.

8.2.4 Review the bit line of the installation site and fully check whether all the bonding positions are tightly bonded.

8.2.5 For filled sites, the filling process should meet the following requirements:

1 Using a professional filling machine to evenly spread sand of the specified specifications, and use a hard brush to brush back and forth to ensure that the sand is fully implemented. The exposed grass is neat and uniform, ensuring flatness;

2 Fill the rubber particles according to the actual product design specifications, and use a hard brush to comb the flat rubber particle filling layer to ensure that the grass sprouts exposed on the fillings stand vertically and have the same height to ensure flatness;

3 Use turf special glue to bond the turf to the surrounding concrete foundation firmly.

9 Acceptance and Test

9.1 General requirements

9.1.1 Acceptance of raw materials used for the surface layer of composite materials shall be subject to acceptance. The construction unit shall provide product certification, instructions and inspection reports within one year. The test report provided by the construction unit shall include the parameters specified in 4.2 and 4.3.

9.1.2 The composite material surface course shall witness the approach of raw material inspection and surface quality inspection under the witness of the construction unit or the supervision unit. The inspection shall be undertaken by a qualified third-party testing agency.

9.1.3 After the completion of construction of the composite material surface layer, the physical properties, hazardous substance content detection and on-site air odor grade assessment shall be carried out in accordance with 9.2.4-9.2.7. The inspection should be conducted after the completion of the construction 14 days. The site test can be put into use.

9.1.4 The quality of the project's perception, dimensions, etc. shall be jointly confirmed by inspection personnel through on-site inspections.

9.2 Raw Material Entry Inspection and Surface Quality Inspection

9.2.1 The entry detection items for harmful substances such as colloidal materials, prefabricated rubber coils, blocks, artificial turf, and rubber granules shall meet the requirements of Table 9.2.1.

Table 9.2.1 Entry detection items for hazardous materials on the ground floor of the composite material yard

9.2.2 The entry detection items for hazardous substances in solvent-based adhesives for the bonding of artificial turf, prefabricated coils, etc. shall comply with the requirements of Table 9.2.2-1, and the entry detection of hazardous substances in water-based adhesives. Should meet the requirements of Table 9.2.2-2.

Table 9.2.2-1 Detection Items for Harmful Substances in Solvent Type Adhesives

Table 9.2.2-2 Pest Detection Items in Water-based Adhesives

9.2.3 The physical property approach test items for prefabricated coils shall comply with the requirements of Table 9.2.3-1. The physical properties approach test items for artificial turf shall comply with the requirements of Table 9.2.3-2.

Table 9.2.3-1 Prefabrication of physical properties of prefabricated coils

Table 9.2.3-2 Artificial turf mechanical performance approach testing project

9.2.4 Physical properties of cast-in-place surface shall comply with the requirements in Table 9.2.4.

Table 9.2.4 Composite Material Surface Physical Performance Testing Project

9.2.5 Inspection items for hazardous contents of cast-in-place surface shall comply with the requirements in Table 9.2.5.

Table 9.2.5 Test items for harmful substances on the ground floor of a composite material field

9.2.6 Indoor composite materials Sports venues should be tested for formaldehyde, benzene, and TVOC.

9.2.7 Synthetic material surface air shall be assessed for odor level.

9.3 Sampling and Determination

9.3.1 The raw materials entering the site and the surface after completion of the construction should be tested in batches.

9.3.2 The same raw material produced by the same manufacturer shall be the same raw material for the same construction site as an inspection lot.

9.3.3 The number of measuring points of the surface layer thickness of the composite material shall be extracted according to the provisions in Table 9.3.3-1. The sampling of other testing items on the surface of the composite material shall be in accordance with Table 9.3.3-2.

The provisions of the extraction, the specific measurement points according to the shape of the site using diagonal lines, slashes, plum-like uniform distribution points. Laboratory test samples should be on the scene

The layer is cut off, and if the conditions are not allowed, the model made at the construction site can be used for testing.

Table 9.3.3-1 Thickness Inspection Sampling Rules

Table 9.3.3-2 Sampling Rules for Other Surface Inspection Items

9.3.4 Surface thickness, surface material odor assessment and on-site TVOC release rate testing shall be conducted on site; other physical properties and hazardous content shall be collected from the site and sent to the laboratory for testing.

9.3.5 If the site environmental conditions are not uniform, the most unfavorable area should be sampled.

9.3.6 Determination

9.3.6.1 Determination of laboratory test items and on-site TVOC release rate test

Each test point shall be tested and the results shall be calculated in accordance with the following provisions:

1 When the single point results meet the requirements of this regulation, the results are taken as the arithmetic mean;

2 When the single-point results do not meet the requirements of this regulation, the results should be the worst;

3 For physical performance, except for cases 1 and 2, when the relative error between the single-point result and the average value is less than 20%, the result is an arithmetic mean;

When the relative error between the single point result and the average value is greater than 20%, another double measurement point should be taken for re-inspection. If the relative error between the single point result and the average value is still greater than 20%, take the worst value;

4 For pest content, except 1 and 2 cases, when the relative error between the single point result and the average value is less than 50%, the result is taken as the arithmetic mean; when the relative error between the single point result and the average value is greater than 50%, Another double checkpoint is used for re-inspection. If the relative error between the single-point result and the average value is still greater than 50%, take the worst value.

9.3.6.2 Field Surface Thickness

Thickness test results shall be evaluated in accordance with 4.4.

9.3.6.3 Surface material odor assessment shall be based on the worst assessment level of each measurement point as the comprehensive odor assessment level of the item.

9.4 Site Acceptance Procedures

9.4.1 The acceptance of the construction quality of the composite material surface layer shall meet the following requirements:

1 The project quality should meet the requirements of engineering survey and design documents;

2 Acceptance of project quality should be carried out on the basis of self-inspection and assessment by the construction unit.

3 Bear witness sampling and testing units should have corresponding qualifications;

4 The perception quality of the project should be checked by on-site inspection personnel and should be jointly confirmed.

9.4.2 The following documents and records should be checked during acceptance of the project quality:

1 Engineering drawings, design instructions and other design documents;

2 Material factory certificate, performance test report, site acceptance record and re-inspection report;

3 Acceptance records of the sub-projects;

4 Construction records.

9.4.3 On-site Inspection and Acceptance Contents and Requirements

1 The flatness and thickness of the synthetic surface should meet the design requirements;

2 The appearance of the synthetic surface layer is free from bubbles, cracks or delamination, and the seams must be straight and without obvious marks;

3 The bonding between the synthetic surface layer and the base layer should be firm, without degumming and unevenness;

4 The color of the synthetic surface should be uniform and consistent with the design requirements;

5 The logo line is straight, even, and free from imaginary edges.

9.4.4 Make an on-site assessment of the composite surface and make recommendations for rectification of the site in question.

9.5 Unacceptable surface treatment

9.5.1 When the surface layer physical performance test results do not meet the requirements, a rectification plan shall be formulated and implemented. If the rectification does not meet the requirements, the construction party and the designer shall decide on the treatment method.

9.5.2 When the content of harmful substances such as heavy metals, MOCA, PAHs, benzo[a]pyrene, SCCPs, phthalates, etc. exceeds the standards, they shall be replaced or dismantled;

9.5.3 When the content of volatile volatile substances such as TVOC, free formaldehyde, benzene, toluene + xylene, and free toluene diisocyanate exceeds the standard, the following requirements shall be handled:

1 If it exceeds 50%, it can be extended for 1 month before re-inspection, or rectification measures are taken. If it still does not meet the requirements, it should be replaced or dismantled;

2 Exceeding 50% of the limit, for replacement or dismantling.

9.5.4 When the on-site odor assessment level is 3, the cause should be further analyzed and rectification should be carried out. If the odor assessment level is still not up to the standard after 1 month, replace it or dismantle it. When the on-site odor assessment level is 4 or 5, dismantling shall be done.

9.6 Test Methods

9.6.1 Total volatile organics (TVOCs) shall be carried out as follows:

1 Colloidal materials and adhesives are tested according to the method of Appendix F of GB 18583-2008;

2 rubber particles according to GB/T 23986-2009 Method 1 test.

9.6.2 The release rate of TVOC for prefabricated coils, TVOC for artificial grass and formaldehyde release rate shall be tested according to the method of GB 50325.

9.6.3 The release rate of cast-in-place surface TVOC shall be tested in accordance with the method of Annex C of this regulation.

9.6.4 The free formaldehyde of the acrylic colloid and adhesive should be tested according to the method of GB 18583.

9.6.5 The sum of benzene, toluene + xylene, and free toluene diisocyanate are tested according to the method of GB 18583. The pretreatment method for solid materials

See Appendix A of this procedure.

9.6.6 Phthalates are tested according to GB/T 29608.

9.6.7 PAHs and benzo[a]pyrene were tested according to the method of GB/T 29614.

9.6.8 SCCPs were tested according to SN/T 2570.

9.6.9 The content of 4,4'-diamino-3,3'-dichlorodiphenylmethane (MOCA) was tested according to the method of HG/T 3711. The pretreatment method was according to the acetone extraction method of GB/T 7766.

9.6.10 Heavy metal content should be carried out as follows:

1 Soluble lead is tested according to the method of GB/T 9578.1;

2 soluble cadmium according to GB/T 9578.4 test;

3 Soluble chromium is tested according to the method of GB/T 9578.6;

4 Soluble mercury is tested according to the method of GB/T 9578.7;

5 The heavy metal pretreatment method is as per Appendix A of this regulation.

9.6.11 The thickness of prefabricated coils shall be tested in accordance with the method of GB 18173.1.

9.6.12 Cast-in-place surface layer thickness is tested according to the method of Annex B of GB/T 19851.11-2005.

9.6.13 The tensile strength and elongation at break of the composite material are tested according to the method of GB/T 14833.

9.6.14 Flame retardant properties of cast-in-place surface and prefabricated coils are tested according to the method of Annex E of GB/T 19851.11-2005.

9.6.15 The aging resistance of cast-in-place surface and prefabricated coils is tested according to the method of GB/T 14833.

9.6.16 The physical and chemical properties and mechanical properties of artificial grass are tested according to GB/T 20394.

9.6.17 The determination of the content of inorganic fillers in synthetic materials and the content of rubber anti-skid granules shall be carried out in accordance with GB/T 4498.1.

9.6.18 The odour assessment method is to be tested in accordance with Appendix B of this regulation.

10 Synthetic Materials Site Management and Maintenance

10.0.1 Management of site usage of synthetic materials shall comply with the following provisions:

1 Should be used reasonably according to its scope of adaptation;

2 All kinds of motor vehicles and heavy machinery are forbidden to enter the site, and it is forbidden to bring explosive, flammable and corrosive articles into the site;

3 Do not wear spiked shoes when entering the stadium;

4 Do not stack heavy objects on synthetic materials for long periods of time;

5 Keep the cleanliness of the venue, smoking, chewing gum and carrying sugar-containing colored beverages or foods.

10.0.2 The surface maintenance of synthetic materials shall meet the following requirements:

1 The surface of the synthetic material should be cleaned at any time. Sand, leaves, garbage, etc. should be regularly cleaned. The entire area should be washed once every quarter.

2 Before and after the application of synthetic material surface wash with water.

3 The various signs and lines on the runway should be kept clear and eye-catching. When faded, it should be redrawed.

When the ground floor of the 4 floors breaks or delaminates, it should be promptly repaired.

10.0.3 人造草坪的养护应符合下列规定：

1 应定期养护，时间间隔不应超过14d;

2 应保持清洁、及时清理杂物、污溃、油渍;

3 炎热、干燥天气要定期撒水;

4 草坪发生损坏时，应及时修补。

附录A 固态材料有害物检测前处理方法

A.1 苯、甲苯+二甲苯

A.1.1 将样品粉碎至粒径约为1mm3 的细小颗粒，准确称取粉碎后的样品1.0g(精确至0.0001g)，置于50mL的容量瓶中，用乙酸乙酯溶解并稀释至刻度，摇匀。静置15 分钟后用微量注射器取上层清液1uL 进样，测其峰面积。若试样溶液的峰面积大于表中最大浓度的峰面积，用移液管准确移取V 体积的试样溶液于50mL 容量瓶中，用乙酸乙酯稀释至刻度，摇匀后再测。

A.2 游离甲苯二异氰酸酯

A.2.1 将样品粉碎至粒径约为1mm3 的细小颗粒，准确称取粉碎后的样品2.0~3.0g(精确至0.0001g)于50mL 容量瓶中，加入5mL 内标物，用适量的乙酸乙酯稀释，静置15 分钟后用微量注射器取上层清液1μL 进样，测定试样溶液中甲苯二异氰酸酯和正四十烷的色谱峰面积。

A.3 可溶性重金属

A.3.1 合成材料跑道、合成材料球场面层、人造草坪

将样品粉碎至粒径约为1mm3 的细小颗粒0.5g(精确至0.0001g)，加入25mL 0.07mol/L 盐酸溶液混合，搅拌1min，测其酸度，如pH>1.5，逐渐滴加浓度为2mol/L 盐酸溶液并摇匀，使pH 在1.0~1.5 之间。在室温下连续搅拌混合液1h，立刻用定量滤纸过滤并洗涤，用1%AgNO3 溶液检验至无氯离子，然后准确定容，将溶液避光保存，应在4h 内完成测试。若4h 内无法完成测试，则使用1mol/L 的盐酸溶液25ml 对样品进行处理，处理方法同上。

A.3.2 聚氨酯胶体主料、丙烯酸胶体主料

将待测样品按规定的比例混合各组分样品，搅拌均匀后，在玻璃板或聚四氟乙烯板(需用1：1 的硝酸溶液浸泡24h，然后用水清洗并干燥)上制备厚度适宜的涂膜。在(60±2)℃下烘至恒重(前后两次称量质量小于0.0005g)后取下涂膜，在室温下用粉碎，并用孔径0.5mm 的不锈钢金属筛过筛后待处理。

附录B 运动场地现场气味评价方法

B.1 评定小组要求

B.1.1 气味评定小组由5 名成员组成，人员选定应符合以下要求：

1 气味评定人员应为不吸烟、嗅觉器官无疾病的男性或女性，经嗅觉检测合格者，如无特殊情况,可连续三年承担气味评价人员。

2 嗅觉检测及气味评定人员挑选

嗅觉检测必须在嗅辩室内进行。主考人将五条无臭纸的三条一端浸入无臭液1cm，另外两条浸入一种标准臭液1cm，然后将五条浸液纸间隔一定距离平行放置，同时让被测者嗅辨，当被测者能正确嗅辨出沾有臭液的纸条，再按照上述方法嗅辨其他四种标准臭液。能嗅辨出五种臭液纸条者可作为气味评定人员。

3 小组成员一旦选定，应尽量保持不变;

4 在进行气味评价前3h，小组成员不应吸食带有强气味的食物，伤风鼻塞者也不宜参与气味评价。

B.1.2 标准臭液、无臭液和无臭纸

1 五种标准臭液浓度及性质见表B.1.2

表B.1.2 标准臭液的组成与性质

2 液体石蜡作为无臭液和标准臭液溶剂。

3 无臭纸应采用层析滤纸，纸条尺寸为：(120×10)mm，应密封保存。

B.2 试验要求

B.2.1 试验方法采用气味等级评定法。

B.2.2 试验应在场地施工完成后至少14d 以后进行。

B.2.3 在进行气味评价前，气味评定小组成员应尽量远离评价场地，并处于场地上风向。

B.2.4 对运动场地现场环境中空气进行气味等级评定，应详细记录试验时日期、时刻、场地日照情况、场地风速、气温等条件;根据最不利原则，建议在日照较强、无风或为微风、气温适中时进行。

B.2.5 评定位置选取在评价场地中间位置，距地面高度1.2~1.5m，小组成员间间隔应不超过0.5m。

B.2.6 开始试验后，气味评定小组统一进入场地，并在到达指定位置1min 后各小组成员独立完成气味等级评定。

B.3 气味评定等级

B.3.1 气味评定小组成员评定及记录气味等级。气味评定等级见表B.3.1。

表B.3.1 气味评定等级

B.3.2 根据各成员评定气味等级进行投票统计，出现次数最高且超过3 票的气味等级作为该测点气味等级评定结果。

B.4 试验报告

B.4.1 试验报告应包含以下内容：

1 评定产品基本情况：名称、完工日期;

2 气味评定现场状态：评定部位及相对位置;周围异常情况;

3 气味评定环境条件：应至少包括检验日期、时刻、温湿度、风速、日照;

4 各位评定小组成员气味评定结果;

5 评定小组成员;

6 气味评定等级及状态描述。

附录C 面层材料有害物释放率现场检测方法

C.1 原理

C.1.1 采用密闭采样罩积累被测面层材料析出的TVOC 和其他化合物，然后用吸附剂在采样口处用恒流采样器采集一定体积量的气体中的目标化合物，选用分析仪器测定所捕集的目标TVOC 和其他化合物的释放浓度，根据释放浓度、材料负载率、累积时间，计算TVOC 和其他化合物的释放率。

C.2 测试仪器

C.2.1 采样罩：材质采用玻璃或有机玻璃，尺寸：(800×800×1500)mm ，采样罩两侧面板的0.5m 高度处留有采样孔。

C.2.2 恒流采样器，流量调节精度应小于5%。

C.3 采样点确定原则

C.3.1 根据合成材料运动场地面层面积按表C.3.1 确定抽样点数。具体测点可根据场地形状采用对角线、斜线、梅花状均衡布点。

表C.3.1 抽样规则

C.4 测量的步骤

C.4.1 采样前准备

Tenax 采样管需经350℃高温老化后方可带出采样，采样罩清洁。

C.4.2 现场采样

1 采样罩安装：将采样罩扣在选定采样点的面层材料上，并对采样罩周围、采样口等处进行密封，防止漏气，并开始计时。

2 污染物聚集：采样罩封闭1h。

3 采样：采样罩应封闭1h 后立刻进行封闭采样，设置采样时间10min，流量500ml/min，将采样管伸入到采样口中，启动采样器采样。

C.4.3 采集样的分析

1 甲醛的分析按GB/T 18204.2 规定进行。

2 TVOC 按GB 50325 规定进行。

C.4.4 结果计算

试件的TVOC 释放率E 应按照下式进行计算：

式中：Ex——试件TVOC 或其他化合物x 的释放率[mg/(m2.h)];

C——采样罩内的空气TVOC 或其他化合物的浓度(mg/m3);

V——采样罩内的空气体积(m3);

S——采样罩内被测试件的表面积(m2);

T——从开始测量到采样结束经历的时间(h)。

本规程用词说明

1 为便于在执行本规程条文时区别对待，对要求严格不同的用词说明如下：

1)表示很严格，非这样做不可的：

正面词采用“必须”，反面词采用“严禁”;

2)表示严格，在正常情况下均应这样做的：

正面词采用“应”，反面词采用“不应”或“不得”;

3)表示允许稍有选择，在条件许可时首先应这样做的：

正面词采用“宜”，反面词采用“不宜”;

4)表示有选择，在一定条件下可以这样做的，采用“可”。

2 条文中指明应按其他有关规程执行的写法为：“应符合……的规定”或“应按……执行”。

Quoting Standard Directory

1 环境空气质量标准GB 3095-2012

2 橡胶灰分的测定第1 部分：马弗炉法GB/T 4498.1-2013

3 橡胶制品化学分析方法GB/T 7766-2008

4 色漆和清漆"可溶性"金属含量的测定第1 部分:铅含量的测定火焰原子吸收光谱法和双硫腙分光光度法GB/T 9758.1-1988

5 色漆和清漆"可溶性"金属含量的测定第4 部分:镉含量的测定火焰原子吸收光谱法和极谱法GB/T9758.4-1988

6 色漆和清漆"可溶性"金属含量的测定第6 部分:色漆的液体部分中铬总含量的测定火焰原子吸收光谱法GB/T 9758.6-1988

7 色漆和清漆"可溶性"金属含量的测定第7 部分:色漆的颜料部分和水可稀释漆的液体部分的汞含量的测定无焰原子吸光谱法GB/T 9758.7-1988

8 合成材料跑道面层GB/T 14833-2011

9 高分子防水材料第1 部分：片材GB 18173.1-2012

10 室内装饰装修材料胶粘剂中有害物质限量GB 18583-2008

11 室内装饰装修材料地毯、地毯衬垫及地毯胶粘剂有害物质释放限量GB 18587-2001

12 中小学体育器材和场地第11 部分：合成材料面层运动场地GB/T 19851.11-2005

13 体育用人造草GB/T 20394-2013

14 体育场地使用要求及检验方法第6 部分：田径场地GB/T 22517.6-2011

15 玩具表面涂层技术条件GB 22753-2008

16 色漆和清漆挥发性有机化合物(VOC)含量的测定气相色谱法GB/T 23986-2009

17 橡胶制品邻苯二甲酸酯类的测定GB/T 29608-2013

18 硫化橡胶中多环芳烃含量的测定GB/T 29614-2013

19 建筑地面工程质量验收规范GB 50209—2002

20 民用建筑工程室内环境污染控制规范(附条文说明)GB 50325-2010

21 环境标志产品技术要求防水涂料HJ 457-2009

22 聚氨酯橡胶硫化剂MOCA HGT 3711-2012

23 中小学体育设施技术规程JGJ/T 280-201225

24 皮革中短链氯化石蜡残留量检测方法SN/T 2570-2010

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