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ZS-Marine Cement Grinding Aid
ZS-Marine Cement Grinding Aid is designed for marine-grade Portland cements in seawater corrosion environments. Low chloride (≤0.1%), low alkali (≤1.0%), high sulfate resistance. Improves 28-day strength by 4-9 MPa, reduces chloride ion permeability, and decreases 28-day drying shrinkage by 8%-13%. No heat-accelerating salts—suitable for mass marine concrete. Compatible with chromium-reducing agents. Backed by 43+ patents from Zhongsen Holding Group.
Cement Grinding Aid
Details
ZS-Marine Cement Grinding Aid
1. Product Introduction
What is ZS-Marine Cement Grinding Aid?
ZS-Marine Cement Grinding Aid is designed for marine-grade Portland cements used in environments prone to seawater corrosion—such as seaports, cross-sea bridges, wharves, and breakwaters—and complies with the GB/T 26748 standard. It meets the specific requirements for marine cement, including low chloride and alkali content, high sulfate resistance, and low heat of hydration. Formulated with a core blend of high-purity, sodium- and potassium-free alkanolamines and corrosion-inhibiting activity activators, the product addresses key challenges such as insufficient early strength, poor resistance to chloride ion penetration, difficulty in activating slag at high replacement levels, and grinding inefficiencies.
How Does It Work?
Optimized Dense Gradation (3-32 μm): Reduces cement water demand, increases hourly production output, and lowers grinding energy consumption. The resulting cement paste structure is denser, effectively blocking the ingress of seawater ions.
Low-Alkali Hydration Control: High-purity, low-alkali alkanolamines moderate the heat release during hydration, thereby reducing thermal shrinkage cracks in massive marine engineering structures.
Efficient Slag Activation: The additive efficiently activates slag, promoting the abundant formation of dense C-S-H gel that fills internal pores.
Corrosion Resistance Enhancement: It reduces calcium hydroxide content, inhibits erosion by magnesium salts and sulfates, blocks pathways for chloride ion penetration, and enhances long-term resistance to seawater corrosion, ensuring steady strength development without regression.
Why Choose ZS-Marine 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 and composite cementitious materials.
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 transparent |
Uniform, free of precipitation |
|
Density (20°C) |
1.16 – 1.21 (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 |
150g – 300g/ton of cement |
Optimized based on clinker type and mill conditions |
3. Key Benefits
|
Performance Area |
Expected Improvement |
|
Mill Output Increase |
10% – 20% (under equivalent fineness) |
|
Energy Savings |
8% – 15% reduction in specific power consumption |
|
Durability Improvement |
Chloride ion permeability coefficient significantly reduced; sulfate resistance grade improved; 28-day drying shrinkage decreased by 8%–13% |
|
Strength Enhancement |
3-day: +2.5-5 MPa; 28-day: +4-9 MPa |
4. Frequently Asked Questions
Q: How is the optimal dosage determined?
A: The recommended range is 150g – 300g 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 the heat of hydration increase and cause cracking in structural components?
A: No. It contains no heat-accelerating salts and results in a gradual release of heat during hydration, making it suitable for large-volume marine concrete pours and helping to reduce temperature-induced cracks.
Q: Can this product and the chromium-reducing agent be used together?
A: Yes. They are dosed via two independent metering systems without interfering with each other, simultaneously meeting low-chromium standards for both export and engineering projects.
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.
5. Application Scope
|
Application |
Benefit |
|
Ball Mill / Vertical Mill Grinding |
Improved throughput, lower energy intensity |
|
Marine Engineering Cement Production |
Control heat of hydration, reduce temperature differential cracks, enhance long-term service durability |
6. 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.
7. 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.
8. Call to Action
�� shengchuangj@163.com
�� +86 156 8886 0208 (WhatsApp)
�� https://www.shengchuanintl.com
Shengchuan — A professional one-stop solution provider for cement/concrete.
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