T/CCAS 015-2020 in English
VALIDTechnical specification for cement grinding aids
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- Implemented on:-
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| Standard No: | T/CCAS 015-2020 |
| Document status: | VALID |
| Title in English: | Technical specification for cement grinding aids |
| Title in Chinese: | 水泥助磨剂应用技术规范 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| ICS Classification: | 91.100.10-Cement. Gypsum. Lime. Mortar |
| Chinese Classification: | Q11-Cement |
| Professional Classification: | T/-Social Organization Standard |
| Related Keywords: | functional grinding aids
aids core functions improve aids functional large-scale grinding tests aids introduction analysis |
| Related Topics: | cement mill
Cement effect grinding aid abrasive help cement grinding aid Raw material grinding aid Inorganic grindstone application technology Reagent grade water technology Cement grinding aid implementation |
本标准规定了水泥助磨剂应用技术规范的术语和定义、基本规定、性能评价方法、验收、应用等。
本标准适用于水泥助磨剂在各种水泥粉磨过程中的应用，包括球磨机粉磨系统、立式磨粉磨系统和辊压机?球磨机联合粉磨系统等。
Introduction
Analysis of the core content of the standard
| Comparison dimensions | General purpose grinding aids | Functional grinding aids |
|---|---|---|
| Core functions | Improve grinding efficiency and improve particle grading | Both aid grinding and improve concrete performance |
| Applicable scenarios | Conventional cement production | Special cement/high performance concrete |
| Technical indicators | Meet the basic requirements of GB/T 26748 | Additional verification of concrete performance is required |
Key technical points
1. Grinding aid classification system
The standard divides grinding aids into two categories: general type (O type) and functional type (F type). The functional type needs to pass the concrete performance verification test.
2. Performance Evaluation Methodology
Large Mill Test Operation Procedures
- Test Cycle: Benchmark test and comparison test each require ≥6 hours of stable sampling
- Key Parameters: 12 indicators such as bench hour output, specific surface area, 45μm sieve residue, etc. need to be recorded simultaneously
- Sample Management: Implement a three-party sample retention system (supply and demand parties + factory sealing)
Implementation and Application Guide
Process Adaptability Adjustment
The standard clearly requires that when flow velocity in the mill is out of control, the grinding body parameters should be adjusted first (the average ball diameter is reduced by 10-15%) rather than simply reducing the amount of grinding aid.
Main points of quality control
| Control items | Liquid grinding aids | Powder grinding aids |
|---|---|---|
| Moisture control | ≤2.0% (Karl Fischer method) | ≤2.0% (GB/T 8077) |
| Storage stability | Antifreeze and heat preservation are required (heating is required for <5℃) | Moisture-proof sealing |
Analysis of standard evolution
Compared with the 2011 version of GB/T 26748, this specification adds Functional grinding aids were classified, and the standardized procedures for large-scale grinding tests were clarified for the first time, reflecting the industry's development direction towards refinement and functionalization.
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