Thin Asphalt Wear Layer for Pavement Preservation Maintenance Road Maintenance Technology

1. Introduction

    ZTA Thin Asphalt Wear Layer uses ZTA-VE high-elastic anti-cracking additive to improve the performance of matrix bitumen. Add VE high-elastic anti-cracking additive directly into the asphalt mixing plant and mix with the aggregate first, and then add bitumen and mineral powder to mix. The modification of asphalt mixture directly is particularly convenient for the use of small maintenance projects.

    ZTA-VE asphalt modifier added to the ZTA 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. ZTA-VE is a asphalt additive for ultra-thin cover of road preventive maintenance, dosage is 0.4% of asphalt mixture. It effectively enhances the bonding, anti-cracking, anti-stripping ability of the asphalt mixture, and extends the service life of the pavement.

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

1.5cm ZTA anti-crack ultra-thin cover

2. Advantages of Thin Asphalt Wear Layer for Pavement Preservation Maintenance Road Maintenance 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.

It integrates a variety of technical features such as high viscosity, high elasticity, wide temperature range, and warm mixing. (Strong bonding ability, good low temperature performance, wider temperature range, Good warm mixing effect, low smoke and dust emission.)
ZTA-VE additive has an effective reinforcement effect in asphalt.
Multi-gravel structure to ensure the strength of the road surface, increase depth of structure, and improve the anti-skid performance of asphalt overlay.
No special equipment is needed, no special emulsified bitumen is needed, and construction is more convenient.

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.