The development of special cement in China began in the 1970s and 1980s. After decades of accumulation, significant growth opportunities emerged in the early 2000s. With the continuous acceleration of national infrastructure construction and the escalating performance requirements for building materials in high-end engineering projects, specialized demands in areas such as high-speed railways, nuclear power, marine engineering, and underground utility tunnels have become the core driving forces for the rapid development of the special cement industry. In recent years, guided by green and low-carbon policies, the iterative upgrade of environmentally friendly special cements and high-performance functional special cements has propelled the special cement industry into a new wave of growth.
Our center has been deeply engaged in special cement testing for many years. By leveraging the functional characteristics and application scenarios of different products, we provide customized and differentiated testing services to help your products break free from homogeneous competition, highlight core advantages, and stand out in the industry.
Testing Products
Moderate Heat Portland Cement
Low Heat Portland Cement
Aluminate Cement
Sulfate-Resisting Portland Cement
White Portland Cement
Low Heat Micro-Expansion Cement
Oil Well Cement
Road Portland Cement
Sulphoaluminate Cement
Steel Slag Road Cement
Marine Portland Cement
Portland Cement for Nuclear Power Engineering
Autoclave-Free Prestressed Pipe Pile Portland Cement
Ultrafine Portland Cement
Slow-Setting Portland Cement for Road Base Course
Marine Sulphoaluminate Cement for Rapid Construction
Low Heat Blastfurnace Slag Portland Cement
Ferroaluminate Cement
Alunite Expansion Cement
Self-Stressing Ferroaluminate Cement
Colored Portland Cement
Rapid Hardening High Iron Sulphoaluminate Cement
Low Heat Steel Slag Portland Cement
Calcium Sulphoaluminate Modified Portland Cement
Composite Sulphoaluminate Cement
Rapid Setting and Rapid Hardening Sulphoaluminate Cement
White Sulphoaluminate Cement
Low Heat Marine Portland Cement
Portland Cement for High-Temperature Well Cementing
Magnesium Slag Portland Cement
Gypsum Slag Cement
Low Alkalinity Sulphoaluminate Cement
Sulphoaluminate Cement Repair Binder for Marine Engineering
Cement-Based Binder for Interior Decoration
Testing Items
Moderate Heat Portland Cement:
Magnesium Oxide (MgO), Sulfur Trioxide (SO₃), Loss on Ignition (LOI), Insoluble Residue, Specific Surface Area (Blaine), Setting Time (Initial and Final), Boiling Soundness, Autoclave Expansion (Soundness), Strength (3d, 7d, 28d), Heat of Hydration (3d, 7d), Radioactivity (Radionuclide Limits)
Low Heat Portland Cement:
MgO, SO₃, LOI, Insoluble Residue, Blaine Specific Surface Area, Setting Time, Boiling Soundness, Autoclave Expansion, Strength (3d, 7d, 28d, 90d), Heat of Hydration (3d, 7d, 28d), Radioactivity
Aluminate Cement:
Silicon Dioxide (SiO₂), Ferric Oxide (Fe₂O₃), Aluminum Oxide (Al₂O₃), Total Alkali Content (Na₂O + 0.658 K₂O), Total Sulfur, Chloride Ion (Cl⁻), Fineness (45 μm), Setting Time, Strength (6h, 1d, 3d, 28d), Radioactivity
Sulfate-Resisting Portland Cement:
Tricalcium Silicate (C₃S), Tricalcium Aluminate (C₃A), LOI, MgO, SO₃, Insoluble Residue, Blaine Specific Surface Area, Setting Time, Boiling Soundness, Strength (3d, 28d), Total Alkali Content, Sulfate Resistance, Radioactivity
White Portland Cement:
SO₃, Water-Soluble Chromium (VI) [Cr(VI)], Fineness, Soundness, Setting Time, Whiteness, Strength (3d, 28d), Boiling Soundness, Radioactivity
Low Heat Micro-Expansion Cement:
SO₃, Blaine Specific Surface Area, Setting Time, Soundness, Strength (7d, 28d), Heat of Hydration (3d, 7d), Linear Expansion Rate, Cl⁻, Radioactivity
Oil Well Cement:
MgO, SO₃, LOI, Insoluble Residue, C₃A, C₃S, Total Alkali Content (Na₂O + 0.658 K₂O), Tetracalcium Aluminoferrite (C₄AF) + 2C₃A, Mixing Water, Fineness, Free Fluid Content, Compressive Strength (8h, 24h), Thickening Time, Radioactivity
Road Portland Cement:
MgO, SO₃, LOI, Cl⁻, Setting Time, Boiling Soundness, Drying Shrinkage Rate, Autoclave Expansion, Abrasion Resistance, Strength (3d, 28d)
Sulphoaluminate Cement:
Total Alkali Content, Cl⁻, Fineness, Setting Time, Strength (7d, 28d), Free Expansion Rate, Self-Stress Value (7d, 28d), 28d Self-Stress Increase Rate, Radioactivity, Alkalinity (pH)
Steel Slag Road Cement:
SO₃, Setting Time, Boiling Soundness, Drying Shrinkage Rate, Abrasion Resistance, Strength (3d, 28d), Blaine Specific Surface Area, Cl⁻, Radioactivity
Marine Portland Cement:
Cement Composition, LOI, SO₃, Cl⁻, Setting Time, Boiling Soundness, Strength (3d, 28d), Fineness (45 μm), Chloride Ion Penetration Resistance, Radioactivity, Seawater Erosion Resistance
Portland Cement for Nuclear Power Engineering:
MgO, Insoluble Residue, SO₃, LOI, Cl⁻, Total Alkali Content, Blaine Specific Surface Area, Setting Time, Boiling Soundness, Strength (3d, 28d), Heat of Hydration (3d, 7d), Radioactivity
Autoclave-Free Prestressed Pipe Pile Portland Cement:
SO₃, Cl⁻, Setting Time, Soundness, Fineness (45 μm), Steam-Cured Strength (1d, 3d), Standard-Cured Strength (28d, 90d), Radioactivity
Ultrafine Portland Cement:
MgO, SO₃, LOI, Cl⁻, Water-Soluble Cr(VI), Setting Time, Boiling Soundness, Autoclave Expansion, Particle Size Distribution, Strength (3d, 28d), Radioactivity
Slow-Setting Portland Cement for Road Base Course:
Free Calcium Oxide (Free Lime / f-CaO), SO₃, MgO, Fineness (45 μm), Setting Time, Boiling Soundness, Water Immersion Soundness, Linear Expansion Rate, Strength, Radioactivity
Marine Sulphoaluminate Cement for Rapid Construction:
Setting Time, Blaine Specific Surface Area, Strength (4h, 1d, 28d), Chloride Ion Diffusion Coefficient, Seawater Erosion Resistance Coefficient, Radioactivity
Low Heat Blastfurnace Slag Portland Cement:
SO₃, LOI, Water-Soluble Cr(VI), Blaine Specific Surface Area, Setting Time, Boiling Soundness, Strength (7d, 28d), Heat of Hydration (3d, 7d), Radioactivity
Ferroaluminate Cement:
Total Alkali Content, Cl⁻, Fineness, Setting Time, Strength (7d, 28d), Free Expansion Rate, Self-Stress Value, 28d Self-Stress Increase Rate, 28d Free Expansion Rate, 28d Erosion Resistance Coefficient, Radioactivity
Alunite Expansion Cement:
SO₃, Blaine Specific Surface Area, Setting Time, Strength (3d, 7d, 28d), Restricted Expansion Rate, Radioactivity
Self-Stressing Ferroaluminate Cement:
Blaine Specific Surface Area, Setting Time, Free Expansion Rate, Compressive Strength (7d, 28d), 28d Self-Stress Increase Rate, Self-Stress Value, Total Alkali Content, Radioactivity
Colored Portland Cement:
SO₃, Fineness (80 μm), Setting Time, Boiling Soundness, Strength (3d, 28d), Color Difference, Radioactivity
Rapid Hardening High Iron Sulphoaluminate Cement:
Fineness (80 μm), Setting Time, Strength (1d, 3d, 28d), Radioactivity
Low Heat Steel Slag Portland Cement:
SO₃, Blaine Specific Surface Area, Setting Time, Soundness, Strength (7d, 28d), Heat of Hydration (3d, 7d), Radioactivity
Calcium Sulphoaluminate Modified Portland Cement:
Cement Composition, LOI, SO₃, MgO, Cl⁻, Setting Time, Boiling Soundness, Water Immersion Soundness, Strength (3d, 28d), Expansion Rate, Fineness (45 μm, 80 μm), Radioactivity
Composite Sulphoaluminate Cement:
Setting Time, Strength, Fineness (45 μm), Radioactivity
Rapid Setting and Rapid Hardening Sulphoaluminate Cement:
Blaine Specific Surface Area, Setting Time, Strength (4h, 1d, 28d), Radioactivity, Cl⁻, Free Expansion Rate
White Sulphoaluminate Cement:
Blaine Specific Surface Area, Setting Time, Strength (6h, 1d, 7d, 28d), Whiteness, Free Expansion Rate, Alkalinity, Radioactivity
Low Heat Marine Portland Cement:
MgO, SO₃, LOI, Insoluble Residue, Cl⁻, Blaine Specific Surface Area, Setting Time, Boiling Soundness, Strength (3d, 7d, 28d), Heat of Hydration (3d, 7d), Chloride Ion Penetration Resistance, Sulfate Resistance, Radioactivity
Portland Cement for High-Temperature Well Cementing:
MgO, SO₃, LOI, Insoluble Residue, Blaine Specific Surface Area, Thickening Time, Free Fluid, 24h Compressive Strength, Radioactivity
Magnesium Slag Portland Cement:
SO₃, Normal Consistency Water Demand, Setting Time, Autoclave Expansion, Strength (3d, 28d), Fineness (45 μm, 80 μm), K₂O, Na₂O, Total Alkali Content
Gypsum Slag Cement:
LOI, SO₃, Cl⁻, Insoluble Residue, Cement Composition, Density, Blaine Specific Surface Area, Fineness (45 μm), Normal Consistency Water Demand, Setting Time, Boiling Soundness, Strength (3d, 7d, 28d), Water-Soluble Cr(VI), Heat of Hydration (7d), Radioactivity
Low Alkalinity Sulphoaluminate Cement:
Blaine Specific Surface Area, Density, Normal Consistency Water Demand, Setting Time, 28d Free Expansion Rate, pH, Strength (1d, 7d)
Sulphoaluminate Cement Repair Binder for Marine Engineering:
Setting Time, Free Expansion Rate (3d, 28d), Compressive Strength (30min, 60min, 1d, 28d), Interface Flexural Strength (28d), Chloride Ion Diffusion Coefficient, Seawater Erosion Resistance Coefficient
Cement-Based Binder for Interior Decoration:
SO₃, Cl⁻, Water-Soluble Cr(VI), Leachable Heavy Metal Content, Leaching Strength, Setting Time, Boiling Soundness, Fluidity Loss Rate over Time, Strength (3d, 7d, 28d), Bleeding Rate, Tensile Bond Strength (14d), Drying Shrinkage Rate (28d), Radioactivity, Methylene Blue Value (MB Value), Total Organic Carbon (TOC) Content
Testing Standards
Moderate Heat Portland Cement: GB/T 200
Low Heat Portland Cement: GB/T 200
Aluminate Cement: GB/T 201
Sulfate-Resisting Portland Cement: GB/T 748
White Portland Cement: GB/T 2015
Low Heat Micro-Expansion Cement: GB/T 2938
Oil Well Cement: GB/T 10238
Road Portland Cement: GB/T 13693
Sulphoaluminate Cement: GB/T 20472
Steel Slag Road Cement: GB/T 25029
Marine Portland Cement: GB/T 31289
Portland Cement for Nuclear Power Engineering: GB/T 31545
Autoclave-Free Prestressed Pipe Pile Portland Cement: GB/T 34189
Ultrafine Portland Cement: GB/T 35161
Slow-Setting Portland Cement for Road Base Course: GB/T 35162
Marine Sulphoaluminate Cement for Rapid Construction: GB/T 39712
Low Heat Blastfurnace Slag Portland Cement: GB/T 42531
Ferroaluminate Cement: GB/T 45920
Alunite Expansion Cement: JC/T 311
Self-Stressing Ferroaluminate Cement: JC/T 437
Colored Portland Cement: JC/T 870
Rapid Hardening High Iron Sulphoaluminate Cement: JC/T 933
Low Heat Steel Slag Portland Cement: JC/T 1082
Calcium Sulphoaluminate Modified Portland Cement: JC/T 1099
Composite Sulphoaluminate Cement: JC/T 2152
Rapid Setting and Rapid Hardening Sulphoaluminate Cement: JC/T 2282
White Sulphoaluminate Cement: JC/T 2601
Low Heat Marine Portland Cement: JC/T 2858
Portland Cement for High-Temperature Well Cementing: JC/T 2859
Magnesium Slag Portland Cement: GB/T 23933
Gypsum Slag Cement: JC/T 2745
Low Alkalinity Sulphoaluminate Cement: GB/T 20472
Sulphoaluminate Cement Repair Binder for Marine Engineering: GB/T 39711
Cement-Based Binder for Interior Decoration: GB/T 40376
Service Advantages
National-level quality inspection center, focused on serving the quality improvement of the cement industry for nearly 40 years.
Professional team: nearly 90% of technical staff hold a bachelor’s degree or higher, and nearly 70% hold engineer or higher titles.
Comprehensive service methods: full coverage of testing parameters, along with targeted skill enhancement services.
Professional service attitude: ensures objective, accurate, and impartial data.
Authoritative service capability: lead editor of numerous national and industrial standards.
Served major national key projects, including the Three Gorges Dam, Baihetan Hydropower Station, and Wudongde Hydropower Station.
