ZS-White Portland Cement Grinding Aid

ZS-White Portland Cement Grinding Aid

1. Product Introduction

What is ZS-White Portland Cement Grinding Aid?

ZS-White Portland Cement Grinding Aid is a liquid grinding aid specifically developed for white Portland cement. Characterized by low color and low iron content, it complies with GB/T 26748 and GB/T 2015 standards. Its core features include the absence of color-causing heavy metal ions—such as iron and manganese—ensuring the cement does not yellow, turn gray, or discolor. It simultaneously facilitates grinding and boosts productivity, enhances whiteness, and increases strength, effectively addressing common challenges such as the difficult grindability of white clinker, whiteness loss during grinding, and low early strength.

How Does It Work?

Particle Dispersion: Neutralizes static charges on cement particle surfaces during grinding, preventing agglomeration and reducing the "cushioning effect" inside the mill.

Grinding Efficiency: By keeping particles separated, it allows the grinding media to work directly on the clinker, reducing energy consumption per ton.

Strength Activation: The active components chemically interact with cement phases (C₃S, C₂S), promoting more complete hydration and contributing to both early and late strength development.

Why Choose ZS-White Portland Cement Grinding Aid from Shengchuan?

20 Years of Focused R&D: Built on Zhongsen Holding Group's deep expertise in specialty cement additives.

43+ National Patents: Protected by extensive intellectual property in green cement additives.

Top University Partnerships: Ongoing industry-academia cooperation with Tsinghua University, University of Science and Technology Beijing, and University of Jinan.

National Standards Contributor: Participation in national key R&D projects and contribution to 6 national industry standards.

Proven in 20+ Markets: Validated in over 20 markets including China, Africa, Southeast Asia, Central Asia, and the Middle East.

2. Technical Indicators

Parameter	Specification	Remarks
Appearance	Light yellow / colorless transparent	Uniform, free of precipitation
Density (20°C)	1.15 – 1.20 (g/cm³)	—
pH Value	8.0 – 10.5	—
Chloride Ion Content	≤ 0.1%	Safe for reinforced concrete
Alkali Content (Na₂Oeq)	≤ 1.0%	Low alkali risk
Recommended Dosage	300g – 800g/ton of cement	Optimized based on clinker type and mill conditions

3. Key Benefits

Performance Area	Expected Improvement
Mill Output Increase	10% – 30% (under equivalent fineness)
Energy Savings	8% – 15% reduction in specific power consumption
Clinker Factor Reduction	SCM usage increased by 3% – 5%
Strength Enhancement	3-day: +2-3 MPa; 28-day: +3-4 MPa
Whiteness Stability	No yellowing or graying during long-term storage

4. Case Study

White Cement Company – Ball Mill Trial

Parameter	Without Grinding Aid	With Grinding Aid	Improvement
Clinker (%)	77.0	77.0	—
Gypsum (%)	3.0	3.0	—
Limestone (%)	20.0	20.0	—
45µm Residue (%)	10.7	10.0	↓ 0.7
Blaine (cm²/g)	5500	5650	↑ 150
Mill Output (t/h)	30	38	↑ 26.7%

5. Frequently Asked Questions

Q: How is the optimal dosage determined?

A: The recommended range is 300g – 800g per ton of cement. Exact dosage depends on clinker grindability, mill type, target fineness, and SCM content. Our technical team can assist with mill trials.

Q: Will cement gradually turn yellow during long-term storage?

A: No. ZS-White Portland Cement Grinding Aid contains no color-causing metal ions and does not discolor due to oxidation. It maintains stable whiteness during warehousing and long-term storage, making it suitable for inventory and long-distance export transport.

Q: Will it affect the color of the cement or the finish of plastering work?

A: No. The product is colorless and transparent, used in very small dosages. The finished product is pure white and smooth, with no peeling, mottling, or discoloration. It is highly compatible with tile grout and terrazzo applications.

Q: How should the product be stored?

A: Store in a sealed plastic container at room temperature. Protect from freezing in winter. Do not store with strong acid additives. Shelf life: 6 months.

6. Application Scope

Application	Benefit
Ball Mill / Vertical Mill Grinding	Improved throughput, lower energy intensity
High-Grade Decorative White Cement Production	Stabilizes cement whiteness, prevents yellowing or graying
White Portland Cement for Export	Low chloride, free from color-causing ions, meets overseas testing standards

7. Usage Guidelines

Calibration: Install a dedicated metering pump and calibrate to target dosage. Addition point: clinker feed belt or mill feed port.

Application Point: Apply evenly onto the clinker feed before entering the mill.

Monitoring: Track mill amperage, production rate (t/h), and cement quality (Blaine, residue).

Note: We provide methods for detecting and controlling the feed rate.

8. Related Products

ZS-High-Efficiency Enhanced Grinding Aid – For maximum clinker replacement.

ZS-Cement Strength Enhancer – For further strength improvement.

ZS-Hexavalent Chromium Reducer – For environmental compliance.

ZS-Vertical Mill Special Cement Grinding Aid – For vertical mill applications.

9. Call to Action

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Shengchuan — A professional one-stop solution provider for cement/concrete