GB/T 4510-2017 in English
VALIDTest method for breaking point of bitumen-Fraass method
- Issued on:2017-07-31
- Implemented on:2018-02-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 4510-2017石油沥青脆点测定法 弗拉斯法》由TC280（全国石油产品和润滑剂标准化技术委员会）归口，TC280SC4（全国石油产品和润滑剂标准化技术委员会石油沥青分会）执行，主管部门为国家标准化管理委员会。
Introduction
GB/T 4510—2017 Determination of Brittle Point of Petroleum Asphalt Frass Method In-depth Interpretation
I. Background and Significance of Standard Formulation
GB/T 4510—2017 "Determination of Brittle Point of Petroleum Asphalt Frass Method" is a comprehensive revision of the original standard GB/T 4510—2006, mainly for the determination of brittle point of petroleum asphalt and its modified asphalt materials. This standard has important application value in engineering construction, road construction and other fields, and can effectively evaluate the performance of asphalt materials under low temperature conditions.
II. Comparative analysis of standard frameworks
| Standard dimensions | GB/T 4510—2006 | GB/T 4510—2017 |
|---|---|---|
| Scope of application | Applicable to ordinary petroleum asphalt | Added determination requirements for polymer modified asphalt |
| Technical parameters | Upper limit of softening point: 80°C | New high temperature test requirements (≤200°C) |
| Instrument requirements | Mainly manual brittle point instrument | Semi-automatic and fully automatic instruments are allowed |
III. Core technology innovation and improvement
1. Temperature control optimization
- Increase the upper limit of softening point from 80°C to 110°C
- Add high temperature test requirements for polymer modified asphalt (≤200°C)
- Strictly stipulate the cooling rate: 1°C/(60±5)s
2. Improved specimen preparation
- The specimen mass is adjusted from 0.40g to 0.41g
- New bubble treatment requirements are added to avoid local overheating
- Preparation time limit: no more than 10 minutes
3. Optimization of test steps
- Initial bending temperature range: above brittle point (10±2)°C
- New test piece cooling protection requirements
- Strictly stipulate bending frequency: 1 time per minute
IV. Instruments and technical requirements
Key instruments involved in the standard include: Fras brittle point tester, bender, thermometer, etc. The introduction of new fully automatic and semi-automatic instruments has significantly improved test efficiency and accuracy.
V. Precision and Result Judgment
| Indicator Category | Repeatability (°C) | Reproducibility (°C) |
|---|---|---|
| Road Asphalt | ≤3°C | ≤6°C |
| Building Asphalt | ≤3°C | ≤6°C |
VI. Implementation Suggestions and Precautions
- Staff Requirements:Operators must receive professional training and be familiar with laboratory safety regulations.
- Equipment Calibration:Calibrate the instrument regularly to ensure that the measurement accuracy meets the standard requirements.
- Sample processing: Strictly control the heating temperature and time to avoid sample aging or decomposition.
- Data recording: Completely record the test process and result deviation for easy traceability and analysis.
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