Municipal engineering material testing is a fundamental and essential task throughout the entire process of municipal infrastructure construction and maintenance. Based on national codes and industry standards, it employs scientific testing methods to inspect, evaluate, and monitor the quality, performance, and compliance of various raw materials, semi-finished products, and finished products in municipal engineering. It directly determines the structural safety, service durability, and environmental adaptability of facilities such as municipal roads, bridges, drainage systems, and pipeline networks. It is a key link in preventing engineering quality hazards, standardizing construction practices, and ensuring public safety.
Testing Standards
Soil and Inorganic Binder Stabilized Materials
Wet Density (Ring Knife Method): JTG 3430-2020, MH/T 5110-2015
Dry Density (Ring Knife Method): JTG 3430-2020, MH/T 5110-2015
Compaction Degree (Ring Knife Method): JTG 3430-2020, MH/T 5110-2015
Wet Density (Sand Cone Method): JTG 3430-2020, TB 10102-2023
Dry Density (Sand Cone Method): JTG 3430-2020, TB 10102-2023
Compaction Degree (Sand Cone Method): JTG 3430-2020, TB 10102-2023
Maximum Dry Density (Compaction Test): JTG 3430-2020, JTG 3441-2024, TB 10102-2023
Optimum Moisture Content (Compaction Test): JTG 3430-2020, JTG 3441-2024, TB 10102-2023
Optimum Water Content (Compaction Test): JTG 3441-2024, TB 10102-2023
Soil Sample Analysis
Water Content: JTG 3430-2020, JTG 3441-2024, TB 10102-2023
Liquid Limit: JTG 3430-2020, TB 10102-2023
Plastic Limit: JTG 3430-2020, TB 10102-2023
Maximum Dry Density of Coarse-grained Soil: JTG 3430-2020
California Bearing Ratio (CBR): JTG 3430-2020
Unconfined Compressive Strength: JTG 3430-2020, JTG 3441-2024, TB 10102-2023
Cement or Lime Dosage: JTG 3441-2024
Plasticity Index: JTG 3430-2020, TB 10102-2023
Coefficient of Uniformity: JTG 3430-2020, TB 10102-2023
Particle Content Below 0.6mm: JTG 3430-2020, TB 10102-2023
Particle Size Analysis: JTG 3430-2020, TB 10102-2023
Organic Matter Content: JTG 3430-2020
Soluble Salt Content: JTG 3430-2020
Specific Gravity: JTG 3430-2020
Shrinkage Limit: JTG 3430-2020, TB 10102-2023
Natural Consistency: JTG 3430-2020
Resilient Modulus: JTG 3441-2024
Relative Density of Sand: JTG 3430-2020, TB 10102-2023
Loss on Ignition: JTG 3430-2020
Dry (Wet) Density: JTG 3430-2020, JTG 3441-2024, TB 10102-2023
Water Content: JTG 3430-2020, JTG 3441-2024
Optimum Water Content (Compaction Test): JTG 3430-2020, JTG 3441-2024
Geosynthetics Physical Properties
Tensile Strength: GB/T 15788-2017, JTG E50-2006, GB/T 1040.1-2018, etc.
Elongation: GB/T 15788-2017, JTG E50-2006, JT/T 1432.1-2022, etc.
Trapezoidal Tear Strength: GB/T 13763-2010, SL 235-2012, JTG E50-2006, etc.
CBR Puncture Resistance: GB/T 14800-2010, SL 235-2012, JTG E50-2006, etc.
Puncture Resistance: GB/T 14800-2010, GB/T 15788-2017, GB/T 19978-2005
Cone Drop Test: GB/T 17630-2024
Breaking Strength: GB/T 13763-2010, GB/T 15788-2017, GB/T 21825-2008
Elongation at Break: GB/T 15788-2017, GB/T 21825-2008, JT/T 1432.2-2022
Tensile Strength: JG/T 193-2006, JT/T 1432.1-2022
Ultimate Tensile Strength: GB/T 15788-2017, JTG E50-2006, JT/T 1432.1-2022, etc.
Geosynthetics Hydraulic Properties
Vertical Permeability Coefficient: GB/T 15789-2016
Flow Rate (Transmissivity): GB/T 15789-2016
Apparent Opening Size: GB/T 14799-2024, JT/T 1432.2-2022
Water Permeability Rate: GB/T 15789-2016
Filtration Water Volume: GB/T 35470-2017, JG/T 193-2006, GB/T 5005-2010
Asphalt and Emulsified Asphalt
Breaking Speed: JTG 3410-2025
Standard Viscosity: JTG 3410-2025
Evaporation Residue Content: JTG 3410-2025
Elastic Recovery: JTG 3410-2025
Kinematic Viscosity: JTG 3410-2025
Brookfield Rotational Viscosity: JTG 3410-2025
Penetration Index: JTG 3410-2025
Wax Content (Distillation Method): JTG 3410-2025
Flash Point: JTG 3410-2025
Dynamic Viscosity: JTG 3410-2025
Solubility: JTG 3410-2025
Density and Relative Density: JTG 3410-2025
Particle Ion Charge: JTG 3410-2025
Residue on 1.18mm Sieve: JTG 3410-2025
Engler Viscosity: JTG 3410-2025
Adhesion to Coarse Aggregate: JTG 3410-2025
Segregation: JTG 3410-2025
Storage Stability: JTG 3410-2025
Penetration of Evaporation Residue: JTG 3410-2025
Softening Point of Evaporation Residue: JTG 3410-2025
Ductility of Evaporation Residue: JTG 3410-2025
Coarse Aggregate for Asphalt Mixtures
Crushing Value: JTG 3432-2024
Los Angeles Abrasion Loss: JTG 3432-2024
Apparent Relative Density: JTG 3432-2024
Water Absorption: JTG 3432-2024
Adhesion with Asphalt: JTG 3410-2025
Particle Size Distribution (Gradation): JTG 3432-2024
Soundness: JTG 3432-2024
Weak Particles Content: JTG 3432-2024
Polished Stone Value (PSV): JTG 3432-2024
Flat and Elongated Particles Content: JTG 3432-2024
Particle Content Below 0.075mm: JTG 3432-2024
Moisture Content: JTG 3432-2024
Apparent Density: JTG 3432-2024
Bulk Density: JTG 3432-2024
Clay, Silt and Dust Content: JTG 3432-2024
Clay Lump Content: JTG 3432-2024
Organic Matter Content: JTG 3432-2024
Fine Aggregate for Asphalt Mixtures
Sand Equivalent: JTG 3432-2024
Particle Size Distribution (Gradation) and Fineness Modulus: JTG 3432-2024
Angularity: JTG 3432-2024
Soundness: JTG 3432-2024
Clay, Silt and Dust Content: JTG 3432-2024
Stone Powder Content (Methylene Blue Value): JTG 3432-2024
Apparent Density: JTG 3432-2024
Compacted Density: JTG 3432-2024
Moisture Content: JTG 3432-2024
Asphalt Mixtures
Asphalt Content and Gradation (Centrifugal/Extraction Method): JTG 3410-2025
Water Permeability Coefficient: JTG 3410-2025
Voids in Mineral Aggregate (VMA): JTG 3410-2025
Rutting Resistance: JTG 3410-2025
Asphalt Saturation (VFA): JTG 3410-2025
Freeze-Thaw Splitting Tensile Strength: JTG 3410-2025
Paving Bricks and Curbs
Compressive Strength of Concrete Pavers: GB/T 28635-2012
Flexural Strength of Concrete Pavers: GB/T 28635-2012
Slip Resistance: GB/T 32987-2016, GB/T 28635-2012
Abrasion Resistance (Wearing Length): GB/T 12988-2009
Freeze-Thaw Resistance: GB/T 28635-2012
Water Absorption: GB/T 28635-2012
Dimensional Deviations: GB/T 28635-2012
Flexural Strength of Permeable Bricks: GB/T 25993-2023
Water Permeability Coefficient of Permeable Bricks: GB/T 25993-2010
Compressive Strength of Concrete Curbs: JC/T 899-2016
Flexural Strength of Concrete Curbs: JC/T 899-2016
Manhole Covers, Grates, etc.
Residual Deformation of Manhole Covers: GB/T 23858-2009
Load Capacity of Manhole Covers: GB/T 23858-2009, GB 26537-2011
Load Capacity of Grates: CJ/T 130-2001, CJ/T 212-2005, JC/T 948-2005, etc.
Compressive Strength of Concrete Blocks: CJJ/T 230-2015, GB/T 4111-2013
Compressive Strength of Crash Barriers/Median Barriers: GB/T 50081-2019
Cement Physical Properties
Final Setting Time: GB/T 1346-2024
Initial Setting Time: GB/T 1346-2024
Soundness (Boiling Method): GB/T 1346-2024
Strength: GB/T 17671-2021
Water Retention Rate: GB/T 3183-2017
Water Requirement for Normal Consistency: GB/T 1346-2024
Fineness: GB/T 1345-2005
Specific Surface Area (Blaine): GB/T 8074-2008
Density: GB/T 208-2014
Fluidity: GB/T 2419-2005
Cement Chemical Properties
Chloride Ion: GB/T 176-2017
Alkali Content: GB/T 176-2017, JTG 3420-2020
Sulfur Trioxide (SO₃): GB/T 176-2017, JTG 3420-2020
Magnesium Oxide (MgO): GB/T 176-2017
Loss on Ignition (LOI): GB/T 176-2017
Aggregates
Particle Size Distribution (Gradation): JGJ 52-2006, GB/T 14684-2022, etc.
Clay, Silt and Dust Content: JGJ 52-2006, GB/T 14684-2022, etc.
Clay Lump Content: JGJ 52-2006, GB/T 14684-2022, etc.
Crushing Value: JGJ 52-2006
Flat and Elongated Particles Content: JGJ 52-2006
Methylene Blue Value: JGJ 52-2006, GB/T 14684-2022, etc.
Soundness: JGJ 52-2006
Alkali-Aggregate Reactivity: GB/T 14684-2022
Sulfate and Sulfide Content: JGJ 52-2006, GB/T 14684-2022, etc.
Lightweight Material Content: JGJ 52-2006, GB/T 14684-2022, etc.
Organic Matter Content: JGJ 52-2006, GB/T 14684-2022, etc.
Shell Content: JGJ 52-2006, GB/T 14684-2022
Fineness Modulus: JGJ 52-2006, GB/T 14684-2022
Moisture Content: JGJ 52-2006, GB/T 14684-2022
Bulk Density: JGJ 52-2006, GB/T 14684-2022
Lightweight Aggregates
Bulk Density (Fine Lightweight Aggregate): GB/T 17431.1-2010, GB/T 17431.2-2010
Particle Size Distribution (Fine/Coarse Lightweight Aggregate): GB/T 17431.1-2010, GB/T 17431.2-2010
Fineness Modulus (Fine Lightweight Aggregate): GB/T 17431.1-2010, GB/T 17431.2-2010
Cylinder Compressive Strength (Coarse Lightweight Aggregate): GB/T 17431.1-2010, GB/T 17431.2-2010
Water Absorption (Coarse Lightweight Aggregate): GB/T 17431.1-2010, GB/T 17431.2-2010
Steel Reinforcement (including welded and mechanical connections)
Yield Strength: GB/T 28900-2022, GB/T 228.1-2021, etc.
Tensile Strength: GB/T 28900-2022, GB/T 228.1-2021, etc.
Percentage Elongation after Fracture: GB/T 28900-2022, GB/T 228.1-2021, etc.
Total Percentage Elongation at Maximum Force: GB 1499.1-2024, GB 1499.2-2024, GB/T 28900-2022, etc.
Reverse Bending: GB/T 28900-2022, GB 1499.2-2024, etc.
Weight Deviation: GB 1499.1-2024, GB 1499.2-2024, GB/T 28900-2022, etc.
Bending Performance: GB/T 28900-2022, GB/T 232-2024, etc.
Dimensions: GB 1499.1-2024, GB 1499.2-2024, GB 13788-2024, etc.
Steel Reinforcement Welded Assemblies
Tensile Strength: JGJ/T 27-2014, JGJ 18-2012
Bending Performance: JGJ/T 27-2014, JGJ 18-2012
Mortar
Compressive Strength: JGJ/T 70-2009
Consistency: JGJ/T 70-2009
Water Retention: JGJ/T 70-2009
Tensile Bond Strength: JGJ/T 70-2009, GB/T 25181-2019, etc.
Setting Time: JGJ/T 70-2009
Layer Segregation (Degree of Stratification): JGJ/T 70-2009
Apparent Density: JGJ/T 70-2009, DG/TJ 08-502-2020
Impermeability Performance: JGJ/T 70-2009
Freeze-Thaw Resistance: JGJ/T 70-2009
Fresh Concrete Properties
Slump: GB/T 50080-2016
Apparent Density: GB/T 50080-2016
Air Content: GB/T 50080-2016
Setting Time: GB/T 50080-2016
Bleeding Water Amount and Bleeding Rate: GB/T 50080-2016
Temperature: GB/T 50080-2016
Hardened Concrete Mechanical Properties
Compressive Strength: GB/T 50081-2019
Flexural Strength: GB/T 50081-2019, JTG 3420-2020
Splitting Tensile Strength: GB/T 50081-2019
Axial Compressive Strength: GB/T 50081-2019
Concrete Durability Properties
Impermeability (Water Penetration Resistance): GB/T 50082-2024
Freeze-Thaw Resistance: GB/T 50082-2024
Chloride Ion Penetration Resistance: GB/T 50082-2024, JTG 3420-2020, etc.
Water-Soluble Chloride Ion Content in Hardened Concrete: JGJ/T 322-2013, GB/T 50344-2019
Vulcanized Rubber or Thermoplastic Rubber
Tensile Strength and Elongation at Break: GB/T 528-2009
Tear Strength (Right Angle): GB/T 529-2008
Shore A Hardness: GB/T 531.1-2008
Accelerated Heat Aging and Heat Resistance Tests: GB/T 3512-2014
Compression Set: GB/T 7759.1-2015
Determination of Low-Temperature Brittleness (Multi-Specimen Method): GB/T 15256-2014
Determination of Density: GB/T 533-2008
Bituminous Waterproofing Membranes
Appearance: GB/T 328.2-2007
Thickness, Mass per Unit Area: GB/T 328.4-2007
Tensile Properties: GB/T 328.8-2007
Heat Resistance: GB/T 328.11-2007
Low Temperature Flexibility: GB/T 328.14-2007
Tear Properties: GB/T 328.18-2007
Peel Strength of Seams: GB/T 328.20-2007
Soluble Filler/Bitumen Content: GB/T 328.26-2007
Length, Width, and Straightness: GB/T 328.6-2007
Polymeric Waterproofing Membranes
Appearance: GB/T 328.3-2007
Thickness, Mass per Unit Area: GB/T 328.5-2007
Tensile Properties: GB/T 328.9-2007
Impermeability (Watertightness): GB/T 328.10-2007
Dimensional Stability: GB/T 328.13-2007
Low Temperature Bendability: GB/T 328.15-2007
Tear Properties: GB/T 328.19-2007
Peel Strength of Seams: GB/T 328.21-2007
Bituminous and Polymeric Waterproofing Membranes
Resistance to Static Load: GB/T 328.25-2007
Self-Adhesive Polymer Modified Bituminous Waterproofing Membranes
Area: GB 23441-2009 (5.2)
Mass per Unit Area: GB 23441-2009 (5.3)
Thickness: GB 23441-2009 (5.4)
Heat Resistance: GB 23441-2009 (5.9)
Peel Strength (Membrane to Aluminum Plate): GB 23441-2009 (5.12.2)
Nail Rod Watertightness: GB 23441-2009 (5.13)
Oil Exudation: GB 23441-2009 (5.14)
Tack Retention/Tack Hold: GB 23441-2009 (5.15)
Heat Aging: GB 23441-2009 (5.16)
Heat Stability: GB 23441-2009 (5.17)
Re-Peel Strength of Self-Adhesive Asphalt: GB 23441-2009 (5.18)
Thermoplastic Polyolefin (TPO) Waterproofing Membranes
Dimensional Deviations: GB 27789-2011 (6.3)
Appearance: GB 27789-2011 (6.4)
Tensile Properties: GB 27789-2011 (6.5)
Dimensional Change Rate after Heat Treatment: GB 27789-2011 (6.6)
Impermeability (Watertightness): GB 27789-2011 (6.8)
Resistance to Static Load: GB 27789-2011 (6.10)
Peel Strength of Seams: GB 27789-2011 (6.11)
Right Angle Tear Strength: GB 27789-2011 (6.12)
Heat Aging: GB 27789-2011 (6.15)
Glass Fiber Reinforced Bituminous Shingles
Soluble Filler/Bitumen Content: GB/T 20474-2015 (7.4)
Tensile Force: GB/T 20474-2015 (7.5)
Heat Resistance: GB/T 20474-2015 (7.6)
Flexibility: GB/T 20474-2015 (7.7)
Impermeability (Watertightness): GB/T 20474-2015 (7.9)
Nail Pull-Out Resistance: GB/T 20474-2015 (7.10)
Lap Peel Strength: GB/T 20474-2015 (7.13)
Polyurethane Waterproofing Coatings
Appearance: GB/T 19250-2013 (6.4)
Solid Content: GB/T 19250-2013 (6.5)
Surface Drying Time: GB/T 19250-2013 (6.6)
Hard Drying Time: GB/T 19250-2013 (6.7)
Leveling: GB/T 19250-2013 (6.8)
Tensile Strength: GB/T 19250-2013 (6.9)
Elongation at Break: GB/T 19250-2013 (6.9)
Tear Strength: GB/T 19250-2013 (6.10)
Impermeability (Watertightness): GB/T 19250-2013 (6.12)
Polymer-Modified Cement Waterproofing Coatings (JS)
Appearance: GB/T 23445-2009 (7.2)
Tensile Strength: GB/T 23445-2009 (7.4)
Elongation at Break: GB/T 23445-2009 (7.4)
Low Temperature Flexibility: GB/T 23445-2009 (7.5)
Bond Strength (Untreated): GB/T 23445-2009 (7.6)
Impermeability (Watertightness): GB/T 23445-2009 (7.7)
Impermeability of Coating: GB/T 23445-2009 (Appendix A)
Water-Emulsified Asphalt Waterproofing Coatings
Appearance: JC/T 408-2005 (5.4)
Solid Content: JC/T 408-2005 (5.5)
Heat Resistance: JC/T 408-2005 (5.6)
Impermeability (Watertightness): JC/T 408-2005 (5.7)
Bond Strength: JC/T 408-2005 (5.8)
Surface Drying Time: JC/T 408-2005 (5.9)
Hard Drying Time: JC/T 408-2005 (5.10)
Low Temperature Flexibility: JC/T 408-2005 (5.11)
Elongation at Break (Standard Conditions): JC/T 408-2005 (5.12)
Building Waterproofing Coatings (General Test Methods)
Solid Content: GB/T 16777-2008 (5)
Heat Resistance: GB/T 16777-2008 (6)
Bond Strength: GB/T 16777-2008 (7)
Tensile Properties: GB/T 16777-2008 (9)
Tear Strength: GB/T 16777-2008 (10)
Heating Shrinkage/Expansion Rate: GB/T 16777-2008 (12)
Low Temperature Flexibility: GB/T 16777-2008 (13)
Low Temperature Bendability: GB/T 16777-2008 (14)
Impermeability (Watertightness): GB/T 16777-2008 (15)
Drying Time: GB/T 16777-2008 (16)
Bond Performance: GB/T 16777-1997 (6)
Tensile Properties: GB/T 16777-1997 (8)
Low Temperature Flexibility: GB/T 16777-1997 (10)
Impermeability (Watertightness): GB/T 16777-1997 (11)
Drying Time: GB/T 16777-1997 (12)
Polyvinyl Chloride (PVC) Waterproofing Membranes
Dimensional Deviations: GB 12952-2011 (6.3)
Appearance: GB 12952-2011 (6.4)
Tensile Properties: GB 12952-2011 (6.5)
Dimensional Change Rate after Heat Treatment: GB 12952-2011 (6.6)
Low Temperature Bendability: GB 12952-2011 (6.7)
Impermeability (Watertightness): GB 12952-2011 (6.8)
Resistance to Static Load: GB 12952-2011 (6.10)
Peel Strength of Seams: GB 12952-2011 (6.11)
Right Angle Tear Strength: GB 12952-2011 (6.12)
Trapezoidal Tear Strength: GB 12952-2011 (6.13)
Heat Aging: GB 12952-2011 (6.15)
Chlorinated Polyethylene (CPE) Waterproofing Membranes
Dimensional Deviations: GB 12953-2003 (5.3)
Appearance: GB 12953-2003 (5.4)
Tensile Properties: GB 12953-2003 (5.5)
Dimensional Change Rate after Heat Treatment: GB 12953-2003 (5.6)
Low Temperature Bendability: GB 12953-2003 (5.7)
Impermeability (Watertightness): GB 12953-2003 (5.9)
Adhesion under Shear: GB 12953-2003 (5.10)
Heat Aging Treatment: GB 12953-2003 (5.11)
Polymeric Waterproofing Sheets
Sheet Dimensions: GB/T 18173.1-2012 (6.1)
Appearance Quality: GB/T 18173.1-2012 (6.2)
Tensile Properties: GB/T 18173.1-2012 (6.3.2)
Tear Strength: GB/T 18173.1-2012 (6.3.3)
Impermeability (Watertightness): GB/T 18173.1-2012 (6.3.4)
Low Temperature Bending: GB/T 18173.1-2012 (Appendix B)
Heating Shrinkage/Expansion Rate: GB/T 18173.1-2012 (Appendix C)
Bond Peel Strength: GB/T 18173.1-2012 (Appendix D)
Water-Swellable Rubber
Dimensional Tolerances: GB/T 18173.3-2014 (6.1)
Appearance Quality: GB/T 18173.3-2014 (6.2)
Repeated Water Immersion Test: GB/T 18173.3-2014 (6.3.5)
High Temperature Flowability (80°C × 5h): GB/T 18173.3-2014 (6.3.7)
Low Temperature Test (-20°C × 2h): GB/T 18173.3-2014 (6.3.8)
Volume Expansion Ratio: GB/T 18173.3-2014 (Appendix A, Appendix B)
Low Temperature Bending (-20°C × 2h): GB/T 18173.3-2014 (Appendix C)
Elastomer (SBS) Modified Bituminous Waterproofing Membranes
Mass per Unit Area, Area, and Thickness: GB 18242-2008 (6.2, 6.3, 6.4)
Soluble Filler/Bitumen Content: GB 18242-2008 (6.7)
Heat Resistance: GB 18242-2008 (6.8)
Low Temperature Flexibility: GB 18242-2008 (6.9)
Impermeability (Watertightness): GB 18242-2008 (6.10)
Tensile Force: GB 18242-2008 (6.11)
Elongation: GB 18242-2008 (6.11)
Heat Aging: GB 18242-2008 (6.13)
Oil Exudation: GB 18242-2008 (6.14)
Peel Strength of Seams: GB 18242-2008 (6.15)
Thickness of Under-surface Bitumen Coating: GB 18242-2008 (6.18)
Low Temperature Flexibility (older version): GB 18242-2000 (5.3.6)
Tensile Force and Elongation at Maximum Force (older version): GB 18242-2000 (5.3.3)
Heat Resistance (older version): GB 18242-2000 (5.3.5)
Plastomer (APP) Modified Bituminous Waterproofing Membranes
Mass per Unit Area, Area, and Thickness: GB 18243-2008 (6.2, 6.3, 6.4)
Soluble Filler/Bitumen Content: GB 18243-2008 (6.7)
Heat Resistance: GB 18243-2008 (6.8)
Low Temperature Flexibility: GB 18243-2008 (6.9)
Impermeability (Watertightness): GB 18243-2008 (6.10)
Tensile Force: GB 18243-2008 (6.11)
Elongation: GB 18243-2008 (6.11)
Heat Aging: GB 18243-2008 (6.13)
Peel Strength of Seams: GB 18243-2008 (6.14)
Thickness of Under-surface Bitumen Coating: GB 18243-2008 (6.17)
Modified Bituminous Waterproofing Membrane with Polyethylene Carrier
Mass per Unit Area and Dimensions: GB 18967-2009 (6.2, 6.3, 6.4)
Tack Retention/Tack Hold: GB 18967-2009 (6.15)
Waterproofing Membranes with Self-Adhesive Layer
Peel Strength: GB/T 23260-2009 (5.2.2)
Peel Strength after Water Immersion: GB/T 23260-2009 (5.2.3)
Peel Strength after Heat Aging: GB/T 23260-2009 (5.2.4)
Heat Resistance of Self-Adhesive Side: GB/T 23260-2009 (5.2.5)
Tack Retention/Tack Hold: GB/T 23260-2009 (5.2.6)
Building Waterproofing Materials (Aging Methods)
Heat Aging: GB/T 18244-2000 (4)
Hot Air Aging: GB/T 18244-2022 (5)
Joint Impermeability (Seal): T/CWA 302-2023 (10)
Pre-applied Waterproofing Membranes
Area: GB/T 23457-2017 (6.3)
Mass per Unit Area: GB/T 23457-2017 (6.4)
Thickness: GB/T 23457-2017 (6.5)
Tensile Properties: GB/T 23457-2017 (6.8)
Resistance to Static Load: GB/T 23457-2017 (6.13)
Heat Resistance: GB/T 23457-2017 (6.14)
Low Temperature Bendability: GB/T 23457-2017 (6.15)
Low Temperature Flexibility: GB/T 23457-2017 (6.16)
Oil Exudation: GB/T 23457-2017 (6.17)
Impermeability (Watertightness): GB/T 23457-2017 (6.19)
Membrane-to-Membrane Peel Strength (Lap Edge): GB/T 23457-2017 (6.22)
Heat Aging: GB/T 23457-2017 (6.24)
Dimensional Change Rate: GB/T 23457-2017 (6.25)
Wet-applied Waterproofing Membranes
Area: GB/T 35467-2017 (5.3)
Mass per Unit Area: GB/T 35467-2017 (5.4)
Thickness: GB/T 35467-2017 (5.5)
Tensile Properties: GB/T 35467-2017 (5.8)
Tearing Force: GB/T 35467-2017 (5.9)
Heat Resistance: GB/T 35467-2017 (5.10)
Low Temperature Flexibility: GB/T 35467-2017 (5.11)
Impermeability (Watertightness): GB/T 35467-2017 (5.12)
Membrane-to-Membrane Peel Strength (Lap Edge): GB/T 35467-2017 (5.13)
Oil Exudation: GB/T 35467-2017 (5.14)
Tack Retention/Tack Hold: GB/T 35467-2017 (5.15)
Heat Aging: GB/T 35467-2017 (5.18)
Dimensional Change Rate: GB/T 35467-2017 (5.19)
Heat Stability: GB/T 35467-2017 (5.20)
Spray Polyurea Waterproofing Coatings
Gel Time: GB/T 23446-2009 (7.6)
Bentonite Rubber Water-Swellable Waterstop Strip
Water Resistance: JG/T 141-2001 (5.3.8)
Waterproofing Coatings for Roads and Bridges
Appearance: JC/T 975-2005 (6.4)
Solid Content: JC/T 975-2005 (6.6)
Surface Drying Time: JC/T 975-2005 (6.7)
Hard Drying Time: JC/T 975-2005 (6.8)
Heat Resistance: JC/T 975-2005 (6.9)
Impermeability (Watertightness): JC/T 975-2005 (6.10)
Low Temperature Flexibility: JC/T 975-2005 (6.11)
Tensile Properties: JC/T 975-2005 (6.12)
Salt Treatment (Tensile Strength Retention, Elongation at Break Retention, Low Temperature Flexibility, Mass Increase): JC/T 975-2005 (6.13)
Heat Aging (Tensile Strength Retention, Elongation at Break Retention, Low Temperature Flexibility, Heating Shrinkage/Expansion, Mass Loss): JC/T 975-2005 (6.14)
Bond Strength of Coating to Cement Concrete: JC/T 975-2005 (6.15)
Modified Bituminous Waterproofing Membranes for Roads and Bridges
Area: JC/T 974-2005 (5.2)
Thickness: JC/T 974-2005 (5.3)
Mass per Unit Area: JC/T 974-2005 (5.4)
Appearance: JC/T 974-2005 (5.5)
Thickness of Under-surface Bitumen Coating: JC/T 974-2005 (5.7)
Soluble Filler/Bitumen Content: JC/T 974-2005 (5.8)
Heat Resistance: JC/T 974-2005 (5.9)
Low Temperature Flexibility: JC/T 974-2005 (5.10)
Tensile Force: JC/T 974-2005 (5.11)
Elongation at Maximum Force: JC/T 974-2005 (5.11)
Heat Aging: JC/T 974-2005 (5.13)
Oil Exudation: JC/T 974-2005 (5.14)
Petroleum Asphalt Glass Fiber Felt Waterproofing Membranes
Dimensional Deviations: GB/T 14686-2008 (5.3)
Appearance: GB/T 14686-2008 (5.4)
Mass per Unit Area: GB/T 14686-2008 (5.5)
Soluble Filler/Bitumen Content: GB/T 14686-2008 (5.6)
Heat Resistance: GB/T 14686-2008 (5.8)
Low Temperature Flexibility: GB/T 14686-2008 (5.9)
Impermeability (Watertightness): GB/T 14686-2008 (5.10)
Heat Aging: GB/T 14686-2008 (5.12)
Waterstop (Rubber)
Dimensional Tolerances: GB/T 18173.2-2014 (5.1)
Appearance Quality: GB/T 18173.2-2014 (5.2)
Tensile Strength: GB/T 18173.2-2014 (5.3.3)
Elongation at Break: GB/T 18173.2-2014 (5.3.3)
Compression Set: GB/T 18173.2-2014 (5.3.4)
Tear Strength: GB/T 18173.2-2014 (5.3.5)
Building Waterproofing Coatings (Additional Methods)
Density: GB/T 6750-2007
Water Absorption: JC/T 2663-2022
Polymer Emulsion Waterproofing Coatings for Construction
Appearance: JC/T 864-2023 (6.4)
Solid Content: JC/T 864-2023 (6.5)
Surface Drying Time: JC/T 864-2023 (6.7)
Hard Drying Time: JC/T 864-2023 (6.8)
Tensile Properties: JC/T 864-2023 (6.9)
Tear Strength: JC/T 864-2023 (6.11)
Impermeability (Watertightness): JC/T 864-2023 (6.13)
Water Resistance: JC/T 864-2023 (6.14)
Bond Strength (Damp Substrate): JC/T 864-2023 (6.17)
Heat Treatment: JC/T 864-2023 (6.18)
Alkali Treatment: JC/T 864-2023 (6.19)
Acid Treatment: JC/T 864-2023 (6.20)
Water (Mixing)
Chloride Ion Content: JGJ 63-2006, GB/T 11896-1989
pH Value: JGJ 63-2006, GB/T 6920-1986
Sulfate (SO₄²⁻) Content: JGJ 63-2006, GB/T 11899-1989
Setting Time Difference: JGJ 63-2006, GB/T 17671-2021
Compressive Strength Ratio: JGJ 63-2006, GB/T 17671-2021
Lime
Available Calcium and Magnesium Oxide Content: JGJ 3441-2024
Magnesium Oxide (MgO) Content: JGJ 3441-2024
Undigested Residue Content: JGJ 3441-2024
Moisture Content: JGJ 3441-2024
Fineness: JGJ 3441-2024
Stone
Dry Compressive Strength: GB/T 9966.1-2020, GB/T 18601-2024, etc.
Water-Saturated Compressive Strength: GB/T 9966.1-2020, GB/T 18601-2024, etc.
Dry Flexural Strength: GB/T 9966.2-2020
Water-Saturated Flexural Strength: GB/T 9966.2-2020
Bulk Density: GB/T 9966.3-2020, GB/T 18601-2024, etc.
Water Absorption: GB/T 9966.3-2020, GB/T 18601-2024, etc.
Bolts, Anchors, Grips and Couplers
Anti-Slip Coefficient: GB 50205-2020, GB/T 3632-2008, etc.
Appearance: GB/T 14370-2015, JGJ 85-2010, etc.
Static Load Anchorage Performance: GB/T 14370-2015, JGJ 85-2010, etc.
Rockwell Hardness: GB/T 230.1-2018, GB/T 14370-2015, etc.
Fastening Axial Force: GB/T 3632-2008, GB 50205-2020
Torque Coefficient: GB/T 1231-2024, GB 50205-2020
Tensile Load (Common Fasteners): GB/T 3098.1-2010
Acoustic Detection Tubes (Sounding Pipes)
Appearance: GB/T 31438-2015
Dimensions: GB/T 31438-2015
Tensile Strength: GB/T 228.1-2021, GB/T 31438-2015
Elongation: GB/T 228.1-2021, GB/T 31438-2015
Flattening Resistance: GB/T 246-2017, GB/T 31438-2015
Thickness Deviation: GB/T 31438-2015
Plastic Drainage Pipes
Appearance: GB/T 18477.1-2007, GB/T 18477.2-2011, GB/T 19472.1-2019, GB/T 19472.2-2017, GB/T 20221-2023, GB/T 21238-2016, GB/T 21492-2019, GB/T 35451.1-2017, GB/T 35451.2-2018, QB/T 4011-2010, CJ/T 165-2002, GB/T 5836.1-2018, GB/T 5836.2-2018, GB/T 10002.1-2023, GB/T 10002.2-2023, GB/T 13663.2-2018, GB/T 13663.3-2018, GB/T 16800-2008, GB/T 18742.2-2017, GB/T 18742.3-2017
Dimensions: GB/T 8806-2008, GB/T 19472.2-2017, GB/T 21238-2016, GB/T 21492-2019, CJ/T 165-2002, CJ/T 218-2010, CJ/T 250-2018, CJ/T 278-2008, CJ/T 308-2009, CJ/T 317-2009, CJ/T 442-2013, QB/T 2480-2022
Barcol Hardness: GB/T 3854-2017
Flattening Test: GB/T 9647-2015, GB/T 20221-2023, GB/T 33608-2017, CJ/T 273-2012
Apparent Density: GB/T 1033.1-2008
Impact Performance: GB/T 14152-2001, GB/T 18477.1-2007, GB/T 18477.2-2011, GB/T 19472.1-2019, GB/T 19472.2-2017, GB/T 35451.1-2017, GB/T 35451.2-2018, QB/T 4011-2010, CJ/T 165-2002, QB/T 2480-2022, QB/T 5307-2018
Initial Ring Stiffness: GB/T 5352-2005, GB/T 21492-2019, GB/T 21238-2016
Initial Hoop Tensile Strength: GB/T 1447-2005, GB/T 21492-2019, GB/T 21238-2016
Initial Hoop Flexural Strength: GB/T 5352-2005, GB/T 21238-2016
Initial Flexibility: GB/T 5352-2005, GB/T 21492-2019, GB/T 21238-2016
Initial Axial Tensile Strength and Elongation at Break: GB/T 1447-2005, GB/T 21492-2019
Short-Term Failure Hydraulic Pressure: GB/T 5351-2005, GB/T 21238-2016
Dichloromethane Immersion: GB/T 13526-2007
Weld Tensile Force: GB/T 8804.2-2003, GB/T 8804.3-2003, GB/T 19472.2-2017, GB/T 35451.2-2018, GB/T 20221-2023, CJ/T 165-2002
Dimensions (again, keep per structure): GB/T 8806-2008, GB/T 19472.2-2017, GB/T 21238-2016, GB/T 21492-2019, CJ/T 165-2002, CJ/T 218-2010, CJ/T 250-2018, CJ/T 278-2008, CJ/T 308-2009, CJ/T 317-2009, CJ/T 442-2013, QB/T 2480-2022
Oven Test: GB/T 8803-2001, GB/T 18477.1-2007, GB/T 18477.2-2011, GB/T 19472.2-2017, QB/T 4011-2010, GB/T 19472.1-2019, GB/T 35451.1-2017, GB/T 35451.2-2018, CJ/T 165-2002
Ring Stiffness: GB/T 9647-2015, GB/T 19472.1-2019, GB/T 19472.2-2017
Ring Flexibility: GB/T 9647-2015, ISO 13968:2008, GB/T 39385-2020, GB/T 19472.1-2019, GB/T 19472.2-2017
Tensile Strength and Elongation at Break: GB/T 1040.2-2006, GB/T 8804.1-2003, GB/T 8804.2-2003, GB/T 8804.3-2003
Tensile Yield Strength: GB/T 8804.1-2003, GB/T 8804.2-2003, GB/T 8804.3-2003
Falling Weight Impact Test: GB/T 14152-2001, GB/T 20221-2023, GB/T 5836.1-2018, GB/T 10002.1-2023, GB/T 16800-2008, GB/T 18993.2-2020, GB/T 18998.2-2022, GB/T 20207.1-2006, GB/T 33608-2017, CJ/T 218-2010, CJ/T 258-2014, CJ/T 273-2012, CJ/T 278-2008, CJ/T 308-2009, CJ/T 442-2013
Density: GB/T 1033.1-2008
Weathering Resistance: QB/T 2480-2022, GB/T 16422.2-2022, GB/T 250-2008, GB/T 1040.2-2006
Hydraulic Leakage: GB/T 5351-2005, GB/T 21238-2016
Vicat Softening Temperature: GB/T 1633-2000, GB/T 8802-2001
Falling Test: GB/T 8801-2007
Longitudinal Reversion Rate: GB/T 6671-2001, QB/T 2480-2022
Internal Pressure Resistance: GB/T 6111-2018
Melt Mass-Flow Rate: GB/T 3682.1-2018, GB/T 19473.2-2020, GB/T 19473.3-2020, GB/T 28799.2-2020, GB/T 28799.3-2020, CJ/T 175-2002, CJ/T 258-2014
Oxidation Induction Time: GB/T 19466.6-2009, GB/T 17391-1998
Ash Content: GB/T 9345.1-2008
Color: GB/T 18477.1-2007, GB/T 18477.2-2011, GB/T 19472.1-2019, GB/T 19472.2-2017, GB/T 20221-2023, GB/T 35451.1-2017, GB/T 35451.2-2018, QB/T 4011-2010, CJ/T 165-2002, GB/T 5836.1-2018, GB/T 5836.2-2018, GB/T 10002.1-2023, GB/T 10002.2-2023, GB/T 13663.2-2018, GB/T 13663.3-2018, GB/T 16800-2008, GB/T 18742.2-2017, GB/T 18742.3-2017, GB/T 18992.2-2003, GB/T 18993.2-2020, GB/T 18993.3-2020, GB/T 18998.2-2022, GB/T 18998.3-2022, GB/T 19473.2-2020, GB/T 19473.3-2020, GB/T 20207.1-2006, GB/T 20207.2-2006
Allowable Jacking Force: GB/T 21492-2019
Initial Axial Compressive Strength and Axial Compressive Elastic Modulus: GB/T 1448-2005, GB/T 21492-2019
Concrete Drainage Pipes
Appearance Quality: GB/T 11836-2023, GB/T 16752-2017
Dimensional Tolerances: GB/T 11836-2023, GB/T 16752-2017
Internal Water Pressure: GB/T 11836-2023, GB/T 16752-2017
External Load (Crack/Ultimate Load): GB/T 11836-2023, GB/T 16752-2017
Cover Thickness (Reinforcement): GB/T 11836-2023, GB/T 16752-2017
Metal Pipes
Cross-Sectional Dimensions: GB/T 3091-2025, GB/T 13793-2016, GB/T 8163-2018, GB/T 12771-2019, GB/T 14976-2012, GB/T 8162-2018, GB/T 32958-2016, GB/T 13295-2019, GB/T 12772-2016
Thickness Deviation: GB/T 3091-2025, GB/T 13793-2016, GB/T 8163-2018, GB/T 12771-2019, GB/T 14976-2012, GB/T 8162-2018, GB/T 32958-2016, GB/T 13295-2019, GB/T 12772-2016
Yield Strength: GB/T 228.1-2021, GB/T 3091-2025, GB/T 13793-2016, GB/T 8163-2018, GB/T 12771-2019, GB/T 14976-2012, GB/T 8162-2018, GB/T 32958-2016 , GB/T 13295-2019
Tensile Strength: GB/T 228.1-2021, GB/T 3091-2025, GB/T 13793-2016, GB/T 8163-2018, GB/T 12771-2019, GB/T 14976-2012, GB/T 8162-2018, GB/T 32958-2016, GB/T 13295-2019
Elongation: GB/T 228.1-2021, GB/T 3091-2025, GB/T 13793-2016, GB/T 8163-2018, GB/T 12771-2019, GB/T 14976-2012, GB/T 8162-2018, GB/T 32958-2016, GB/T 13295-2019
Corrugated Ducts for Prestressed Concrete
Appearance Dimensions: JT/T 529-2016, JG/T 225-2020
Ring Stiffness: JT/T 529-2016, GB/T 9647-2015
Local Transverse (Crossbeam) Load: JT/T 529-2016
Longitudinal Load: JT/T 529-2016
Flexibility: JT/T 529-2016
Impact Resistance: GB/T 14152-2001, JT/T 529-2016
Tensile Properties: GB/T 8804.3-2003
Pull-out Force: GB/T 15820-1995
Sealability: JT/T 529-2016
Ash Content: GB/T 9345.1-2008
Oxidation Induction Time (OIT): GB/T 19466.6-2009
Aging Resistance Test: GB/T 19472.1-2019
External Load Performance Test (Local Crossbeam Load): JG/T 225-2020
External Load Performance Test (Uniformly Distributed Load): JG/T 225-2020
Leakage Performance Test after Bending: JG/T 225-2020
Leakage Performance Test after Local Crossbeam Load: JG/T 225-2020
Service Advantages
The company holds comprehensive construction engineering quality testing qualifications from the Ministry of Housing and Urban-Rural Development, special bridge and tunnel qualifications from the Ministry of Transport, CMA qualification, etc. It is among the first batch of comprehensive-level testing institutions in Shanghai, capable of undertaking material testing and special assessments across the entire municipal engineering field.
