Triethanolamine Cement Grinding Aid & Accelerator
CAS Number: 102-71-6
Triethanolamine (TEA) is a versatile concrete admixture used both as a cement grinding aid at the mill and as an early-strength accelerator in concrete mixes. At dosages of 0.02–0.05% by cement weight, it accelerates the hydration of C3A and C4AF phases, increasing 1-day and 3-day compressive strengths by 20–40%. It is chloride-free and safe for reinforced concrete.
Technical Specifications
| pH | 10.0-11.5 |
| appearance | Colorless to pale yellow viscous liquid |
| purity (%) | 85±2 |
| specific gravity | 1.12–1.13 |
| water content (%) | ≤1.0 |
Applications
- Cement grinding aid to improve mill efficiency and output
- Early strength accelerator in precast concrete
- Winter concrete construction requiring rapid strength gain
- Repair mortars where fast return to service is needed
- Combined with other admixtures in complex formulations
Key Features
- Chloride-free accelerator safe for steel reinforcement
- Dual-use as grinding aid and concrete accelerator
- Effective at very low dosages, cost-efficient to use
- Synergistic with lignosulfonate and PCE admixtures
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