Synchronized gravel seal refers to the use of synchronous gravel seal vehicle to spray asphalt binder and aggregate at the same time, so that there is the fullest contact between asphalt binder and aggregate, in order to achieve maximum bonding between them.
Compared with ordinary gravel seals, synchronous gravel seals shorten the time interval between spraying binder and spreading aggregate, so that aggregate particles can be better implanted in the binder to obtain more coating area. It is easier to ensure a stable proportional relationship between binder and stone chips, improve productivity, reduce mechanical configuration, and reduce construction costs.
The asphalt pavement after synchronous gravel seal has better anti-skid and anti-seepage performance, which can effectively cure the damage of pavement such as oil-poor, granulation, slight mesh crack, rutting, subsidence and so on. This technology can be used in both high-grade highways and ordinary highways.
Synchronized gravel seal technology has strong waterproofing, high skid resistance, and good performance in dealing with pavement cracks。 Without aggregate loss, it can ensure road maintenance performance for 7-10 years。
Synchronized gravel sealing vehicle is used for the construction of lower and upper seals of highway pavement, the construction of new and old pavement overlaying abrasive layer, the construction of asphalt pavement overlaying method, and the distribution of asphalt gravel under special circumstances.
Characteristic of synchronous gravel sealing car:
1. The time interval of asphalt macadam landing at the same place is not more than 1 second, which greatly improves their cohesion.
2. The asphalt tank and the stone silo are loaded on the same chassis, which reduces the cost.
3。 Fully automatic computer control;
4。 The working direction of the way forward increases the construction safety, greatly reduces the harm to the body, and has no great impact on the environment。
Fiber-added synchronous gravel sealing car:
The GYKT0612 type synchronous gravel sealing car manufactured by Gaoyuan, Henan Province is developed and designed by our company. The synchronous gravel sealing machine with independent intellectual property rights can realize the construction of stone debris spreading without hopper lifting, which is convenient for the construction of bridges and culverts. In addition, the double row spraying structure of sprinkler head frame and the fiber adding structure are added. A strong mixing device is installed in the asphalt tank, which effectively solves the problem that rubber asphalt is easy to precipitate and segregate, and achieves the integration of mechanical, electrical and hydraulic operation, simplifies the operation procedure of the equipment, and makes the operation simple. The whole machine has reached the advanced level in the world.
1. Without lifting hopper, the equipment can be used to spread stone debris, which is more convenient for culvert construction, under-bridge construction and bend construction.
2. The equipment is fully controlled by electricity, with high automation and automatic control of sprayer expansion length, which can accurately calculate the amount of asphalt spraying in the construction process.
3. The mixer effectively solves the problem that rubber asphalt is easy to precipitate and segregate.
4 、石屑撒布采用双螺旋布料器把石屑输送到3500mm的下料斗内 ，
4. The scraps are distributed in a duplex spiral distributor to convey the scraps to a 3500 mm hopper.
Stone chips fall by friction and gravity of gravity drum, without dividing material by dividing board, to ensure the uniformity of the distribution of stone chips。
5。 It reduces the labor intensity of construction, saves human resources, reduces construction costs, and improves work efficiency and quality。
6. The whole machine runs steadily and spreads evenly. The width of asphalt spraying can be adjusted freely.
7. A good insulation layer ensures that the insulation performance index is less than 20 C/8h and that it is corrosion-resistant and durable.
8. It can be sprayed with various asphalt media and sprayed with stones from 3 to 30 mm.
9. Equipments adopt nozzles with high processing accuracy, so that the consistency and spraying effect of each nozzle can be fully guaranteed.
10。 The whole operation is more humanized, with remote control and on-site operation, which brings great convenience to operators。
11. Through the perfect combination of electric control and constant pressure device of hydraulic system, Zero-start spraying is realized.
12. After many improvements in engineering construction, the whole machine has reliable performance, convenient operation and maintenance, and high cost performance.