Testing Products

General Purpose Portland Cement

Masonry Cement

Steel Slag and Blastfurnace Slag Portland Cement

Magnesium Slag Portland Cement

Limestone Portland Cement

Phosphorus Slag Portland Cement

Steel Slag Masonry Cement

Gypsum Slag Cement

Testing Items

General Purpose Portland Cement

Loss on Ignition (LOI)

Sulfur Trioxide (SO₃) Content

Magnesium Oxide (MgO) Content

Chloride Ion (Cl⁻) Content

Insoluble Residue

Cement Composition (Component Analysis)

Density

Specific Surface Area (Blaine)

Normal Consistency Water Demand

Setting Time (Initial and Final)

Soundness (Le-Chatelier / Autoclave)

Strength (Compressive / Flexural)

Potassium Oxide (K₂O) Content

Sodium Oxide (Na₂O) Content

Total Alkali Content (Na₂O + 0.658 K₂O)

Water-Soluble Chromium (VI) [Cr(VI)] Content

Radioactivity (Radionuclide Limits)

Autoclave Expansion (Soundness)

Masonry Cement

Fineness (80 μm sieve residue)

Normal Consistency Water Demand

Setting Time (Initial and Final)

Soundness (Le-Chatelier / Autoclave)

Fluidity of Mortar

Water-Cement Ratio (W/C)

Water Retention Rate

Sulfur Trioxide (SO₃) Content

Chloride Ion (Cl⁻) Content

Strength (Compressive / Flexural)

Water-Soluble Chromium (VI) [Cr(VI)] Content

Radioactivity (Radionuclide Limits)

Steel Slag and Blastfurnace Slag Portland Cement

Density

Specific Surface Area (Blaine)

Normal Consistency Water Demand

Setting Time (Initial and Final)

Sulfur Trioxide (SO₃) Content

Chloride Ion (Cl⁻) Content

Autoclave Expansion (Soundness)

Strength (Compressive / Flexural)

Potassium Oxide (K₂O) Content

Sodium Oxide (Na₂O) Content

Total Alkali Content (Na₂O + 0.658 K₂O)

Water-Soluble Chromium (VI) [Cr(VI)] Content

Radioactivity (Radionuclide Limits)

Magnesium Slag Portland Cement

Sulfur Trioxide (SO₃) Content

Normal Consistency Water Demand

Setting Time (Initial and Final)

Autoclave Expansion (Soundness)

Strength (Compressive / Flexural)

Fineness (Sieve Residue)

Potassium Oxide (K₂O) Content

Sodium Oxide (Na₂O) Content

Total Alkali Content (Na₂O + 0.658 K₂O)

Limestone Portland Cement

Sulfur Trioxide (SO₃) Content

Magnesium Oxide (MgO) Content

Chloride Ion (Cl⁻) Content

Density

Specific Surface Area (Blaine)

Normal Consistency Water Demand

Setting Time (Initial and Final)

Soundness (Le-Chatelier / Autoclave)

Strength (Compressive / Flexural)

Potassium Oxide (K₂O) Content

Sodium Oxide (Na₂O) Content

Total Alkali Content (Na₂O + 0.658 K₂O)

Phosphorus Slag Portland Cement

Sulfur Trioxide (SO₃) Content

Magnesium Oxide (MgO) Content

Chloride Ion (Cl⁻) Content

Fineness (80 μm sieve residue)

Normal Consistency Water Demand

Setting Time (Initial and Final)

Soundness (Le-Chatelier / Autoclave)

Strength (Compressive / Flexural)

Potassium Oxide (K₂O) Content

Sodium Oxide (Na₂O) Content

Total Alkali Content (Na₂O + 0.658 K₂O)

Steel Slag Masonry Cement

Sulfur Trioxide (SO₃) Content

Density

Specific Surface Area (Blaine)

Normal Consistency Water Demand

Setting Time (Initial and Final)

Soundness (Le-Chatelier / Autoclave)

Water Retention Rate

Compressive and Flexural Strength of Mortar

Magnesium Oxide (MgO) Content

Autoclave Expansion (Soundness)

Gypsum Slag Cement

Loss on Ignition (LOI)

Sulfur Trioxide (SO₃) Content

Chloride Ion (Cl⁻) Content

Insoluble Residue

Cement Composition (Component Analysis)

Density

Specific Surface Area (Blaine)

Fineness (45 μm sieve residue)

Normal Consistency Water Demand

Setting Time (Initial and Final)

Soundness (Le-Chatelier / Autoclave)

Strength (Compressive / Flexural)

Water-Soluble Chromium (VI) [Cr(VI)] Content

Heat of Hydration

Radioactivity (Radionuclide Limits)

Testing Standards

General Purpose Portland Cement: GB 175

Masonry Cement: GB/T 3183

Steel Slag and Blastfurnace Slag Portland Cement: GB/T 13590

Magnesium Slag Portland Cement: GB/T 23933

Limestone Portland Cement: JC/T 600

Phosphorus Slag Portland Cement: JC/T 740

Steel Slag Masonry Cement: JC/T 1090

Gypsum Slag Cement: JC/T 2745

Service Advantages

Professional 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.