Updated Jul 2026 · Manufacturer Direct
A cement grinding aid (CGA) is a liquid or powder additive dosed at 0.02–0.08% by cement weight during grinding to reduce particle agglomeration, increase mill output by 10–20%, and improve strength development in OPC, PPC and slag cement — without adding chloride.
A grinding aid coats clinker particles during grinding to prevent re-agglomeration on mill internals, lowering the energy needed per ton of cement while increasing mill throughput and fineness control.
| Type | Typical Dosage | Best-Fit Mill | Best-Fit Cement |
|---|---|---|---|
| Liquid Grinding Aid | 0.03–0.06% | Ball Mill / VRM | OPC, PPC |
| Powder Grinding Aid | 0.02–0.05% | Ball Mill | OPC, Slag |
| TIPA-based | 0.02–0.04% | Ball Mill / VRM | PPC, Composite |
| TEA/DEIPA-based | 0.03–0.05% | VRM | Slag, PSC |
Source: internal lab & plant trials · Methodology: ASTM C465 / GB/T 26748 · Updated Q3 2026
| Cement Type | Mill Output Gain | Blaine Fineness | 3-Day Strength | 28-Day Strength |
|---|---|---|---|---|
| OPC | +15–20% | +30 m²/kg | +2.1 MPa | +4.8 MPa |
| PPC | +12–18% | +25 m²/kg | +1.8 MPa | +4.2 MPa |
| Slag Cement | +10–15% | +20 m²/kg | +1.5 MPa | +3.9 MPa |
dateModified: 2026-07-16
Enter your clinker input and current mill output to get a suggested dosage and estimated cost savings.
Try the CalculatorStandard dosage guidance for ordinary Portland cement.
Adjusted dosage for pozzolana blend cements.
Higher fineness targets, VRM-preferred.
Mill-specific dosing and feed-point guidance.
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Typical dosage ranges from 0.02% to 0.08% by cement weight, depending on cement type, mill type and target output gain. A lab trial confirms the optimal rate for your clinker.
No. All grades are chloride-free, making them safe for reinforced concrete and steel-embedded applications.
No. A grinding aid primarily boosts mill output and fineness during grinding, while a quality improver focuses on later strength and workability gains.
Standard dosages have negligible impact on initial and final setting time; our TDS lists setting time data for each grade at recommended dosage.
Liquid grades ship in IBC totes or drums; powder grades in bags. Bulk tanker delivery available for large orders.
MOQ starts at 1 IBC/drum for sample orders; standard lead time is 7–15 days depending on grade and destination.
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