GBJ 97-1987 Cement concrete pavement construction and acceptance specification
Some standard content:
Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Construction and Acceptance Specification of Cement Concrete Pavement
GBJ97—87
1988Beijing
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National Standard of the People's Republic of China
Construction and Acceptance Specification of Cement Concrete Pavement GBJ97—87
Editor Department: Ministry of Transport of the People's Republic of China Approval Department: China State Planning Commission of the People's Republic of China Effective Date: October 1, 1987
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Notice on the Release of "Construction and Acceptance Specifications for Cement Concrete Pavement"
Ji Biao [1987] No. 226
According to the notice of the former State Construction Commission (81) Jianfa She Zi No. 546, the "Construction and Acceptance Specifications for Cement Concrete Pavement" jointly formulated by the Ministry of Communications and relevant departments has been reviewed by relevant departments. The "Construction and Acceptance Specifications for Cement Concrete Pavement" GBJ97-87 is now approved as a national standard and will be implemented from October 1, 1987. This standard is managed by the Ministry of Communications, and its specific interpretation and other work are the responsibility of the Zhejiang Provincial Department of Communications. The publication and distribution is organized by the Basic Construction Standards and Quotas Research Institute of our Commission. State Planning Commission
February 9, 1987
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Preparation Instructions
This specification is compiled by the Zhejiang Provincial Department of Transportation in accordance with the original State Construction Commission [81] Jianfa Shezi No. 546 Notice, and is compiled jointly with 14 units including the Guangdong Provincial Department of Transportation.
During the compilation of this specification, a relatively extensive investigation and research was conducted, summarizing the experience of building cement concrete pavements since the founding of the People's Republic of China, absorbing relevant scientific research results, and widely soliciting opinions from relevant units across the country. Several special seminars were held, and after repeated discussions and revisions, it was finally reviewed and finalized together with relevant departments. This specification is divided into six chapters, eleven sections and eight appendices. The main contents include general principles, construction preparation, base and cushion layer, cement concrete slab construction, cement concrete pavement quality inspection and completion acceptance, and safe production.
This specification is compiled for the first time. Please pay attention to accumulating information and summarizing experience during the implementation process. If you find any need for modification or supplement, please send your comments and relevant information to the Zhejiang Provincial Department of Transportation (Plum Blossom Monument, Hangzhou) for reference in future revisions. Ministry of Transportation of the People's Republic of China
February 1987
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Main Symbols
g——Calculated flexural strength of concrete (MPa) α——Split strength of concrete cylinder (MPa); %——Flexural strength of concrete beam (MPa); C—Compressive strength of concrete specimen (MPa); C. 1. Cement grade (compressive strength) (MPa) C—actual compressive strength of cement (MPa); K—surplus coefficient of cement grade;
—concrete ash-water ratio;
C.—concrete trial mix strength;
g—mean square deviation of concrete strength;
equivalent rebound modulus of base top surface (MPa); - calculated rebound modulus of base top surface (MPa); E.—rebound modulus of soil base (MPa)
L.—calculated rebound deflection value measured by Yellow River JN-150 vehicle (mm); P—maximum load of specimen failure (N);
A—compressive area of specimen (cm).
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No. Chapter 1 Summary
Chapter 2
Chapter 3
Chapter 4
Construction Preparation
Base and Pad
Cement Concrete Slab Construction
Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Concrete Mix Ratio
Mixing and Transportation of Concrete Mixture
Pouring of Concrete Mixture
Reinforcement Setting·
Joint Construction·
Section 7
Concrete Slab Maintenance
Construction in Winter and Summer
Section 8
Section 9
Thickening of Old Concrete Slab..
Chapter 5 Quality inspection and final acceptance of cement concrete pavement Section 1 Quality inspection
Section 2 Final acceptance
Chapter 6
Appendix—
Appendix 2
Appendix 3
Appendix 4
Appendix 5
Appendix 6
Appendix 7
Appendix 8
Safety in production
Concrete mix ratio calculation examples
Concrete slab vacuum water absorption process
Concrete slab cutting machine and construction process
Concrete slab joint filling material
Concrete slab plastic film curing process
Concrete compression, flexural and splitting tensile strength test. Conversion of measurement units
Explanation of terms used in this specification,
Additional instructions
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Chapter I General Provisions
Article 1.0.1 This specification is formulated to improve the construction technology level of cement concrete road (pavement) pavement (hereinafter referred to as concrete pavement) engineering, ensure the quality of the engineering, and promote the development of traffic construction and transportation. Article 1.0.2 This specification applies to the construction and acceptance of cement concrete pavements cast in situ, such as newly built and rebuilt highways, urban roads, factory and mine roads, and civil aviation airport pavements.
Note: Civil aviation airport pavement refers to runways, aprons, and taxiways. Article 1.0.3 The construction of concrete pavement must take corresponding technical measures according to the design documents, construction conditions and different conditions such as hydrology, geology and meteorology to ensure the quality of the project.
Article 1.0.4
The selection of raw materials for concrete pavement should implement the principle of taking local materials according to local conditions.
Article 1.0.5 The construction of concrete pavement should adopt mechanical operation and actively adopt new technologies, new materials and new processes. Article 1.0.6 The construction and acceptance of concrete pavement, in addition to being implemented in accordance with the provisions of this specification, shall also comply with the provisions of the relevant current national standards and specifications. Engineering Construction Standard Full-text Information System
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Chapter II Construction Preparation
Article 2.0.1 The construction unit shall determine the construction plan and prepare the construction organization design based on the design documents and construction conditions.
Article 2.0.2 Water and electricity supply, traffic roads, mixing and stockpiling sites, office and living quarters, sheds, warehouses, and fire-fighting facilities should be solved before construction. Article 2.0.3 Buildings, irrigation channels, and underground pipelines that hinder construction should be demolished before construction.
Article 2.0.4 Before construction, the raw materials of the concrete pavement must be sampled, tested, and analyzed, and the concrete mix ratio verification data should be provided. Article 2.0.5 The construction unit should re-measure the plane and elevation control piles according to the design documents, and determine the sample piles such as the pavement center, pavement width, and vertical and horizontal elevations. The accuracy of the control pile measurement should comply with the relevant national standards and specifications. Engineering 2 Construction Standard Full Text Information Systembzxz.net
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Chapter 3 Base and cushion layer
Article 3.0.1 The subgrade of concrete pavement shall meet the following requirements: 1. The height, width, longitudinal and transverse slopes and side slopes of the subgrade shall meet the design requirements; 2. The subgrade shall have a good drainage system; 3. The subgrade shall be solid and stable, and the compaction and flatness shall meet the design requirements; 4. When widening the existing subgrade, the new and old subgrades shall be well combined, and the compaction shall meet the requirements.
Article 3.0.2 The subgrade of concrete pavement shall adopt semi-rigid subgrades such as lime-stabilized soil with good plate properties and high strength, industrial waste residue, graded crushed (gravel) stone mixed with lime and cement-stabilized sand and gravel (including gravel king), and mud-lime crushed (gravel) stone subgrade. Article 3.0.The strength of the 3 concrete pavement bases should meet the design requirements. The base construction should meet the following requirements:
1. For lime-stabilized soil bases, the soil blocks should be crushed, the lime should be qualified, the ingredients should be accurate, the mixing should be uniform, the optimal water content should be controlled, and the compaction should be compacted. The lime content should account for 812% of the soil. When the average temperature of the day is lower than 5℃ (degrees Celsius), the construction should be stopped, and the specified strength should be reached before freezing. The lime-stabilized soil base should not be constructed on rainy days.
2. For industrial waste slag bases such as coal slag, fly ash, and metallurgical slag, a certain amount of lime soil or stone slag should be added to form a mixture according to its chemical composition and particle composition, and water should be added for mixing and compacting, and watering should be sprinkled for maintenance. When the average temperature of the day is lower than 5℃, construction should not be carried out, and the specified strength should be reached before freezing;
3. For mud-lime crushed (gravel) stone bases, the mud-lime content should be strictly controlled. The total content of mud should not be greater than 20% of the total mixture, the lime content should account for 8-12% of the soil, and the plasticity index of the soil should be 10-14. Construction can be carried out by grouting or mixing. When mixing, the mud should be mixed first:
Note: The plasticity index of the soil is the liquid limit measured by the 76g balance cone standard. If a 100g balance cone is used, the plasticity index of the soil should be 15-22.
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Fourth, the crushed (gravel) stone particles of the graded crushed (gravel) stone mixed with lime base should meet the grading requirements. The fine material content should be 20-30%, and the lime content should account for 8-12% of the fine material;
5. The gravel of the cement-stabilized gravel (including gravel soil) base should have a certain gradation, the maximum particle size should not exceed 5cm, and the cement content should not exceed 6% of the total weight of the mixture. The compaction work must be completed before the cement is finally set. Article 3.0.4 After the base is completed, maintenance should be strengthened, driving should be controlled, and no vehicle grooves should appear. If there is any damage, the same material should be used to repair and compact it before pouring the concrete slab. It is strictly forbidden to fill it with loose particles. For the widened base, the strength of the new and old parts should be consistent. Article 3.0.5 When setting the cushion layer, the cushion layer construction shall meet the following requirements: 1. It is advisable to use local gravel or slag and other materials; 2. Before the cushion layer construction, the roadbed diseases should be handled and the drainage facilities should be completed; 3. The cushion layer should be rolled dense and uniform; 4. When the lime soil cushion layer is used in the frozen area, it should not be constructed when the average temperature of the day is lower than 5℃, and it should reach the specified strength before freezing. Article 3.0.6 When constructing the concrete pavement, the shoulder, drainage and sidewalk projects should be completed in time according to the design requirements.
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Chapter 4 Cement Concrete Slab Construction
Section 1? Materials
Article 4.1.1 The cement used for the concrete slab shall meet the following requirements: 1. Cement with high strength, small shrinkage, strong wear resistance and good frost resistance should be used. Its physical properties and chemical composition shall comply with the relevant national standards; 2. Portland cement or ordinary Portland cement (ordinary cement for short) shall be used for highways, urban roads, and factory and mine roads, and the cement grade shall not be lower than 425. When conditions are limited, slag cement may be used, and its grade shall not be lower than 425, and the water consumption shall be strictly controlled, the mixing time shall be appropriately extended, and the maintenance work shall be strengthened. Ordinary cement No. 325 may also be used, but measures such as admixture, hard concrete or vacuum water absorption shall be taken.
3. Civil aviation airport pavement and expressway must use Portland cement with a grade not lower than 425;
4. When cement enters the site, it shall have a product certificate and a test report. And the variety, grade, packaging, quantity, and ex-factory date shall be inspected and accepted; 5. Cement with different grades, brands, varieties, and ex-factory dates shall not be mixed and stacked, and mixed use is strictly prohibited. Cement that has been out of the factory for more than three months or has been exposed to moisture must be tested, and the test results must be used to determine whether it can be used normally or downgraded. Cement that has already agglomerated and deteriorated must not be used.
Article 4.1.2 The sand used for concrete slabs shall meet the following requirements: 1. Clean, hard, coarse and medium sand that meets the specified grading and has a fineness modulus of more than 2.5 shall be used;
2. When coarse and medium sand cannot be obtained, fine sand with a soil and debris content of less than 3% may be used if feasible after a mix ratio test;
3. The technical requirements for sand shall comply with the provisions of Table 4.1.2. Article 4.1.3 Crushed (gravel) stone used for concrete slabs shall meet the following requirements: Engineering Construction Standard Full Text Information System
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Sieve hole size (mm)
Cumulative sieve residue
Soil debris content (washing method)
Sulfide and sulfate content (converted to SO3) (%)
Organic matter content (colorimetric method)
Other debris
Technical requirements for sand
100~9095~80
100~90
100~9085~55
The color should not be darker than the color of the standard solution. Holes
It shall not be mixed with other debris such as lime, coal slag, grass roots, etc. ① The sand in Zone I is basically coarse sand. The sand in zone I is medium sand and a part of coarse fine sand, with moderate particles and the best gradation. The sand in heavy zone is fine sand and a part of fine medium sand. ② Preparation method of standard solution of organic matter content: Take 2g of thorny acid powder and dissolve it in 98ml of 10% alcohol solution to obtain the required thorny acid solution, then take 2.5ml of the solution and inject it into 97.5ml of 3% sodium hydroxide solution, add a stopper and shake it vigorously, and let it stand for 24h to obtain the standard solution. 1. Crushed (gravel) stone should be hard in texture and should meet the specified gradation. The maximum particle size should not exceed 40mm;
2. The technical requirements of crushed stone should meet the requirements of Table 4.1.3-1. 3. The technical requirements of gravel should meet the requirements of Table 4.1.3-2. Article 4.1.4 Crushed (gravel) stone used for frost-resistant concrete should be subjected to freeze-thaw and firmness tests.
Note: In areas where the average temperature in January is not lower than -10℃, the frost resistance of the stone is not considered. Article 4.1.5 The water used for concrete mixing and curing should be clean, preferably drinking water. When non-drinking water is used, it should be tested and meet the following requirements: 1. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 2. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 3. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 4. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 5. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 6. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 7. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 8. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 9. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 10. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 11. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 12. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 13. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 14. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 15. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 16. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 17. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 18. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 19. The sulfate content (1. The cement used for concrete slabs shall meet the following requirements: 1. Cement with high strength, low shrinkage, strong wear resistance and good frost resistance shall be used. Its physical properties and chemical composition shall meet the requirements of relevant national standards; 2. Portland cement or ordinary Portland cement (ordinary cement for short) shall be used for highways, urban roads, and factory and mine roads, and the cement grade shall not be lower than 425. When conditions are limited, slag cement may be used, and its grade shall not be lower than 425, and the water consumption shall be strictly controlled, the mixing time shall be appropriately extended, and the maintenance work shall be strengthened. Ordinary cement No. 325 may also be used, but measures such as adding admixtures, hard concrete or vacuum water absorption shall be taken.
3. Civil aviation airport pavements and highways must use Portland cement with a grade not lower than 425;
4. When cement enters the site, it shall have a product certificate and a test report. And the variety, grade, packaging, quantity, and date of manufacture shall be inspected and accepted; 5. Cement with different grades, brands, varieties, and dates of manufacture shall not be mixed and stacked, and mixed use is strictly prohibited. Cement that has been manufactured for more than three months or has been damp must be tested, and the normal use or downgraded use shall be determined according to the test results. Cement that has already agglomerated and deteriorated shall not be used.
Article 4.1.2 The sand used for concrete slabs shall meet the following requirements: 1. Clean, hard, coarse and medium sand that meets the specified grading and has a fineness modulus of more than 2.5 shall be used;
2. When coarse and medium sand cannot be obtained, fine sand with a soil content of less than 3% may be used if it is feasible after a mix ratio test;
3. The technical requirements for sand shall comply with the provisions of Table 4.1.2. Article 4.1.3 Crushed (gravel) stone used for concrete slabs shall meet the following requirements: Engineering Construction Standard Full Text Information System
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Sieve hole size (mm)
Cumulative sieve residue
Soil debris content (washing method)
Sulfide and sulfate content (converted to SO3) (%)
Organic matter content (colorimetric method)
Other debris
Technical requirements for sand
100~9095~80
100~90
100~9085~55
The color should not be darker than the color of the standard solution. Holes
It shall not be mixed with other debris such as lime, coal slag, grass roots, etc. ① The sand in Zone I is basically coarse sand. The sand in zone I is medium sand and a part of coarse fine sand, with moderate particles and the best gradation. The sand in heavy zone is fine sand and a part of fine medium sand. ② Preparation method of standard solution of organic matter content: Take 2g of thorny acid powder and dissolve it in 98ml of 10% alcohol solution to obtain the required thorny acid solution, then take 2.5ml of the solution and inject it into 97.5ml of 3% sodium hydroxide solution, add a stopper and shake it vigorously, and let it stand for 24h to obtain the standard solution. 1. Crushed (gravel) stone should be hard in texture and should meet the specified gradation. The maximum particle size should not exceed 40mm;
2. The technical requirements of crushed stone should meet the requirements of Table 4.1.3-1. 3. The technical requirements of gravel should meet the requirements of Table 4.1.3-2. Article 4.1.4 Crushed (gravel) stone used for frost-resistant concrete should be subjected to freeze-thaw and firmness tests.
Note: In areas where the average temperature in January is not lower than -10℃, the frost resistance of the stone is not considered. Article 4.1.5 The water used for concrete mixing and curing should be clean, preferably drinking water. When non-drinking water is used, it should be tested and meet the following requirements: 1. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 2. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 3. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 4. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 5. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 6. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 7. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 8. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 9. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 10. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 11. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 12. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 13. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 14. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 15. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 16. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 17. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 18. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 19. The sulfate content (1. The cement used for concrete slabs shall meet the following requirements: 1. Cement with high strength, low shrinkage, strong wear resistance and good frost resistance shall be used. Its physical properties and chemical composition shall meet the requirements of relevant national standards; 2. Portland cement or ordinary Portland cement (ordinary cement for short) shall be used for highways, urban roads, and factory and mine roads, and the cement grade shall not be lower than 425. When conditions are limited, slag cement may be used, and its grade shall not be lower than 425, and the water consumption shall be strictly controlled, the mixing time shall be appropriately extended, and the maintenance work shall be strengthened. Ordinary cement No. 325 may also be used, but measures such as adding admixtures, hard concrete or vacuum water absorption shall be taken.
3. Civil aviation airport pavements and highways must use Portland cement with a grade not lower than 425;
4. When cement enters the site, it shall have a product certificate and a test report. And the variety, grade, packaging, quantity, and date of manufacture shall be inspected and accepted; 5. Cement with different grades, brands, varieties, and dates of manufacture shall not be mixed and stacked, and mixed use is strictly prohibited. Cement that has been manufactured for more than three months or has been damp must be tested, and the normal use or downgraded use shall be determined according to the test results. Cement that has already agglomerated and deteriorated shall not be used.
Article 4.1.2 The sand used for concrete slabs shall meet the following requirements: 1. Clean, hard, coarse and medium sand that meets the specified grading and has a fineness modulus of more than 2.5 shall be used;
2. When coarse and medium sand cannot be obtained, fine sand with a soil content of less than 3% may be used if it is feasible after a mix ratio test;
3. The technical requirements for sand shall comply with the provisions of Table 4.1.2. Article 4.1.3 Crushed (gravel) stone used for concrete slabs shall meet the following requirements: Engineering Construction Standard Full Text Information System
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Sieve hole size (mm)
Cumulative sieve residue
Soil debris content (washing method)
Sulfide and sulfate content (converted to SO3) (%)
Organic matter content (colorimetric method)
Other debris
Technical requirements for sand
100~9095~80
100~90
100~9085~55
The color should not be darker than the color of the standard solution. Holes
It shall not be mixed with other debris such as lime, coal slag, grass roots, etc. ① The sand in Zone I is basically coarse sand. The sand in zone I is medium sand and a part of coarse fine sand, with moderate particles and the best gradation. The sand in heavy zone is fine sand and a part of fine medium sand. ② Preparation method of standard solution of organic matter content: Take 2g of thorny acid powder and dissolve it in 98ml of 10% alcohol solution to obtain the required thorny acid solution, then take 2.5ml of the solution and inject it into 97.5ml of 3% sodium hydroxide solution, add a stopper and shake it vigorously, and let it stand for 24h to obtain the standard solution. 1. Crushed (gravel) stone should be hard in texture and should meet the specified gradation. The maximum particle size should not exceed 40mm;
2. The technical requirements of crushed stone should meet the requirements of Table 4.1.3-1. 3. The technical requirements of gravel should meet the requirements of Table 4.1.3-2. Article 4.1.4 Crushed (gravel) stone used for frost-resistant concrete should be subjected to freeze-thaw and firmness tests.
Note: In areas where the average temperature in January is not lower than -10℃, the frost resistance of the stone is not considered. Article 4.1.5 The water used for concrete mixing and curing should be clean, preferably drinking water. When non-drinking water is used, it should be tested and meet the following requirements: 1. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 2. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 3. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 4. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 5. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 6. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 7. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 8. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 9. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 10. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 11. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 12. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 13. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 14. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 15. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 16. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 17. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 18. The sulfate content (measured as SO2) shall not exceed 2700 mg/L; 19. The sulfate content (
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