GB/T 45019-2024 in English
VALIDBasalt fiber modified asphalt mixture for road engineering
- Issued on:2024-11-28
- Implemented on:2025-06-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$262.00
| Standard No: | GB/T 45019-2024 |
| Document status: | VALID |
| Title in English: | Basalt fiber modified asphalt mixture for road engineering |
| Title in Chinese: | 道路用玄武岩纤维沥青混合料 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2024-11-28 |
| Implemented on: | 2025-06-01 |
| ICS Classification: | 93.080.20-Road construction materials |
| Chinese Classification: | Q20-Road material |
| Professional Classification: | GB-National Standard |
| Related Keywords: | basalt fiber asphalt mixtures
roads urban road engineering highway asphalt pavement key indicators fiber content asphalt mixture basalt fiber application basalt fiber |
| Related Topics: | Basalt Standard
Basalt insulation Basalt Products carbon fiber spinnable pitch Basalt profiles Basalt energy consumption calculation |
《GB/T 45019-2024道路用玄武岩纤维沥青混合料》由TC458（全国混凝土标准化技术委员会）归口，主管部门为住房城乡建设部。
Introduction
1. Standard Overview and Background Analysis
This standard (GB/T 45019-2024) specifies the types, specifications, material requirements and technical indicators of basalt fiber asphalt mixtures for roads, and is applicable to asphalt pavement construction. Its formulation background is mainly based on the increasing demand for pavement durability and crack resistance in modern transportation. Basalt fiber has become an important additive for modified asphalt due to its excellent mechanical properties.
2. Comparative analysis of standard frameworks
| Standard dimensions | GB/T 45019—2024 | CJJ 1 | JTG F40 |
|---|---|---|---|
| Scope of application | Basalt fiber asphalt mixture for roads | Urban road engineering | Highway asphalt pavement |
| Key indicators | Fiber content, void ratio, stability | Compactness, strength requirements | High temperature stability, low temperature crack resistance |
| Test methods | Marshall test, freeze-thaw splitting test | Standard compaction method | Rutting test, bending test |
3. Interpretation of technical requirements and application suggestions
Material selection:Basalt fiber should comply with GB/T 42280 standard, and alkaline fillers are preferred to enhance the interface effect.
Construction process:Mixing time needs to be adjusted according to equipment characteristics to ensure uniform dispersion of fibers. The production cycle of each batch mixer should not be less than 55 seconds.
Actual application case analysis
A northern highway project uses BFAC-16 basalt fiber asphalt mixture. After construction, the pavement crack resistance is improved by 20%, and the failure strain reaches 3500με in low temperature environment.
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