Hot Mix Thin Asphalt Overlays for Pavement Preservation Thin Concrete Pavement Overlay

1. Introduction

    ZTA Ultra Thin Asphalt Overlay High Performance Thin Overlay Asphalt Maintenance is an efficient means of pavement preventive maintenance, which does not destroy the structure of the original pavement without reducing its structural strength. Compared with other thin layer of asphalt cover technology, the ZTS ultra-thin asphalt cover does not require special high viscosity High viscosity emulsified bitumen and dedicated paving units, which can significantly reduce costs, so that the ultra-thin cover can be widely used.

    ZTA-VE asphalt modifier added to the ZTS high-elastic anti-crack ultra-thin asphalt cover can increase the properties of the asphalt mixture to adapt to high and low temperature, anti-scaling and anti-fatigue properties. Its construction application is more convenient that ZTA-VE additives is directly mixing with aggregates in asphalt mixing plants.

Table 1 Technical indicators of VE high-elastic anti-cracking additive

1.5cm ZTA anti-crack ultra-thin cover

2. Advantages of Asphalt pavement preventive maintenance cover technology

    ZTA high-elastic anti-cracking additives are directly added to the conventional asphalt mixture to improve the high and low temperature performance, crack resistance and fatigue resistance of asphalt mixture. Restores the road's anti-skid, noise reduction and comfortable driving in all aspects.

1. Good bonding performance. Significantly improve the bonding performance of the mixture to avoid flying particles.

2. Easy to use. The production and construction processes are very simple, directly modify the asphalt mixture without special paving equipment.

3. Convenient for small batch applications. It meets the preventive maintenance needs with a small amount of engineering.

4. It adopts multi-gravel type asphalt mixture with wide gradation range, strong adaptability, large structure depth, excellent anti-skid and noise reduction performance, and good material stability within a large oil-stone ratio range, and better construction tolerance conducive to production and construction control.

5. Warm mixing performance. The discharging temperature of the mixture should be above 160°C, and the ambient temperature can be well rolled at 5°C, which avoids the adverse effect of rapid cooling of the ultra-thin cover surface on compaction.

6. Good durability and high cost performance.

7. Environmentally-friendly. Energy-saving and environmentally-friendly technology with little smoke and dust.

3. Application Scope

1. Scope of application

Preventive maintenance of high-grade asphalt pavement

Corrective maintenance of minor diseases

Surface wear layer of new road

2.Applicable road

Highway

City roads, municipal roads

Bridge deck, elevated road

Tunnel road

4. Convenient Construction Method

                                     Feeding Materials               Paving Crushing                            Compaction Open Traffic

5. Typical Case

                                    Highland Road at 3,500 Meters Altitude                                                       Highway

 Tunnel Road                                                                      Viaduct Road

    City Road                                                                    Municipal Road

6. Company information

    Beijing Zhongtian Road-Tech Co.,Ltd. is the Board of Directors of China Transportation Association and Transportation Committee of China Technological Market Association, with expert technical R&D team, continuous innovation ability, rich engineering experience and sufficient capacity. Also we participated in designated road material industry standard certificates.