What is a synchronous sealing vehicle?
In recent years, with the acceleration of infrastructure construction, synchronous sealing trucks, as an efficient road construction equipment, have gradually become a hot spot in the industry. This article will introduce in detail the definition, working principle, application scenarios and market data of the synchronous sealing vehicle to help readers fully understand this technology.
1. Definition of synchronous sealing vehicle
The synchronous sealing vehicle is a special vehicle for road maintenance that integrates asphalt spraying and aggregate spreading. It significantly improves construction efficiency and quality by simultaneously completing the paving of asphalt and aggregate, and is widely used in preventive maintenance and repair projects of highways and municipal roads.
2. Working principle
The core of the synchronous sealing truck lies in the "synchronization" technology:
| step | Operation content |
|---|---|
| 1 | The asphalt is heated to 160-180°C and then pumped to the spraying system |
| 2 | The aggregates are stored in silos after drying and screening. |
| 3 | Simultaneous spraying of asphalt and spreading of aggregate while the vehicle is moving |
| 4 | The rolling equipment immediately follows up the compaction molding |
3. Technical advantages
| Advantages | illustrate |
|---|---|
| Efficiency | Complete two layers of paving in a single operation at a speed of up to 3-5km/h |
| Bonding strength | Hot asphalt and aggregate are instantly combined, and the bonding force is increased by 40% |
| Waterproof | Form a dense protective layer with water permeability coefficient <50ml/min |
4. Application scenarios
1.Highway preventive maintenance: Repair minor cracks and delay pavement aging
2.Municipal road repair: Quickly treat ruts, potholes and other diseases
3.New road seal layer: Enhance the adhesion between base layer and surface layer
5. Market data (industry trends in the past 10 days)
| index | data | source |
|---|---|---|
| Baidu search index | Average daily search volume increased by 35% year-on-year | Baidu Index |
| Bidding project | 28 new synchronous sealing vehicle procurement bidding sections were added across the country | Government Procurement Network |
| technological innovation | 3 companies released intelligent temperature control systems | Industry exhibition |
6. Technology development trends
1.Intelligent upgrade: Equipped with GPS navigation system and automatic metering device
2.Environmental improvements: Asphalt flue gas recovery device becomes standard equipment
3.Multifunctional integration: Some models have integrated microwave heating function
7. Purchase suggestions
| parameter | Standard recommendations |
|---|---|
| Asphalt capacity | ≥8m³ (medium-sized project) |
| Spreading accuracy | Aggregate error＜±2% |
| work efficiency | Average daily construction ≥5000㎡ |
With the advancement of the construction of a powerful transportation country in the "14th Five-Year Plan", the synchronous sealing vehicle market is expected to maintain an annual growth rate of more than 15%. This technology can not only reduce maintenance costs by more than 30%, but also extend the pavement life by 5-8 years after construction. It is an important development direction in the field of road maintenance in the future.
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