In the field of civil engineering and pavement technology, the Pressure Aging Vessel (PAV) is not merely a piece of laboratory equipment; it is a critical instrument for predicting the long-term lifecycle of transportation infrastructure. As asphalt binders age through oxidative processes, their rheological properties shift, leading to brittleness and cracking. Our PAV systems are engineered to simulate 5 to 10 years of in-service environmental aging in as little as 20 hours.
By applying high temperature (90°C to 110°C) and high pressure (2.10 MPa) simultaneously, the PAV accelerates the oxidation of bitumen, providing researchers with the "Information Gain" needed to select binders that resist fatigue cracking.
Every unit we manufacture adheres strictly to AASHTO R28 and ASTM D6521. This ensures that data generated is globally comparable, essential for international infrastructure projects.
Equipped with dual-layered pressure relief systems and automated thermal cut-offs, our equipment ensures laboratory safety while maintaining high-precision control over the aging environment.
Asphalt performance is highly dependent on localized climate conditions. Our PAV equipment is used globally to tailor pavement designs to specific geographic challenges:
Used to test how binders react to extreme thermal cycling and oxidation in low-oxygen, high-UV environments like the Tibet Plateau or Northern Canada.
Testing the salt-spray and high-humidity impact on oxidative rates for binders used in major port facilities and equatorial expressways.
Simulating the aging of polymer-modified bitumen (PMB) used in smart city intersections where heavy braking and idling accelerate binder degradation.
The industry is moving toward Industry 4.0 integration. Our R&D roadmap focuses on three pillars of innovation:
Based in Xi'an, a global hub for technological innovation and ancient trade, Xi'an Zealchon Electronic Technology Co., Ltd leverages a high-density industrial ecosystem. This allows for:
Xi'an Zealchon Electronic Technology Co., Ltd possesses more than 15 years of civil engineering background. Located in the new technology industry development zone in Xi'an, we cover a 7500 square meter facility dedicated to the pursuit of excellence.
The "Xiya" trademark is a symbol of quality in Shaanxi Province. Under the guidance of professors from Chang'an University Highway College and Air Force Engineering University, we have filled critical gaps in the domestic and international market for asphalt testing technology.
Our research has accomplished a series of leading domestic and international standards. Many of our geotechnical and asphalt structural testing instruments have won national, ministerial, and provincial awards for innovation and reliability.
Our machines are utilized worldwide by government agencies, commercial testing laboratories, ready-mix producers, and prestigious universities. We provide localized support through:
Standardized 220V/110V configurations to meet global electrical standards without requiring external converters.
All units are traceable to national standards, facilitating easy local ISO/IEC 17025 accreditation for our clients.
We provide a comprehensive "Three Guarantees" promise, reflecting our craftsman spirit and dedication to professional service.
Zealchon Electronic
