Non-Nuclear Asphalt Density Gauge – QualiADG provides a safe, cost-effective, and advanced solution for accurate asphalt concrete density measurement. Utilizing cutting-edge non-nuclear technology, it eliminates the regulatory burden of licenses and special storage, making it an ideal choice for efficient and compliant asphalt testing.
Designed for ease of use, the gauge features a vibrant full-color VGA display with an intuitive graphical interface. It delivers precise density readings in under five seconds, streamlining operations in the field. Its rugged, lightweight construction and Microsoft Windows CE platform offer exceptional portability and durability, even in harsh job site conditions.
Optimized for field data handling, the QualiADG includes a built-in data management screen for quick access to stored results, easily transferable via USB. Enhanced with LED backlighting for improved visibility and upgradeable software, this non-nuclear asphalt gauge is a future-ready tool for modern pavement and density analysis.
Pressure Aging Vessel QualiPAV
QualiPAV Pressure Aging Vessel is designed to simulate the long-term aging effects of traffic load and environmental exposure on asphalt binders. This advanced system enables accurate evaluation of asphalt oxidation resistance under precise temperature and pressure conditions, making it ideal for preparing aged binder samples for performance-based testing.
Engineered with a compact and lightweight form factor, the QualiPAV fits seamlessly on standard laboratory benchtops. Its user-friendly operation and low-maintenance design make it a practical solution for asphalt durability testing in any modern lab setting.

Pressure Aging Vessel QualiPAV Features
The QualiPAV Pressure Aging Vessel features a 7-inch high-definition display for real-time monitoring of chamber pressure and temperature. During testing, the system displays temperature-time and pressure-time curves, enabling precise control and tracking.
Advanced sensors provide real-time deviation tracking for both pressure and temperature, ensuring compliance with updated asphalt aging specifications. Intelligent control mechanisms prevent overheating during pressurization, enhancing test reliability and sample integrity.
Test data is automatically recorded at 5-second intervals and can be easily exported in Excel format via USB. Upon completion, the system automatically prints the process data for documentation and review.
Engineered for operator safety, the unit includes over-temperature and over-pressure protection, high-pressure release, and overload safeguards. Built-in fault detection, buzzer alarms, and error code displays allow for rapid troubleshooting.
The exterior features a stainless steel cabinet with a special protective finish, offering both easy cleaning and durable, long-lasting performance in demanding lab environments.
Comprehensive Software Capabilities
The advanced spectrometer software provides powerful tools for calibration, analysis, and data management, delivering accuracy and flexibility across different material matrixes.
- Calibration & Correction – Supports calculation curves for multiple calibrations with integrated third-element interference correction to ensure precise results.
- Flexible Operations – Create and customize analysis programs with ease. Choose from multiple output styles such as intensities, intensity ratios, uncorrected concentrations, corrected concentrations, and more.
- Output & Standardization – Select preferred units and apply either global or mini standardization to match specific analytical requirements.
- Data Reporting – Generate reports of over 100 spark results, including averages, standard deviations (STD), and relative standard deviations (RSD).
- Reference & Database – Access a comprehensive standard database and perform advanced statistical analysis calculations.
- User-Friendly Features – Supports English result outputs, seamless data conversion to Microsoft Office formats, and direct data storage to a hard disk for convenient archiving.
- Integration & Connectivity – Connect effortlessly with external computers or central systems for enhanced data sharing and workflow integration.
Pressure Aging Vessel QualiPAV Technical Specifications
| Specification | Value | ||
|---|---|---|---|
| Working temperature range | 90~110℃ | ||
| Temperature control accuracy | Resolution 0.1℃, accuracy ±0.5℃ | ||
| Preheating time | 40min~60min | ||
| Temperature-pressure | Real-time display temperature and pressure values and curve relationship | ||
| Working pressure | 2.1MPa±0.1MPa | ||
| Actual pressure control accuracy | ±0.02MPa | ||
| Pressure sensor range | 0-3MPa | ||
| Accuracy | 0.5% (±0.015MPa) | ||
| Air supply | Cylinder compressed air, air pressure greater than 3MPa | ||
| Air supply connector | Equipped with high-pressure pressure reducing valve and converted high-pressure air pipe matching with industrial compressed air bottles as standard | ||
| Safety relief | Greater than 2.5MPa | ||
| Safety valve | When the pressure in the chamber exceeds 2.5MPa, the safety valve automatically releases pressure | ||
| Voltage | AC220V 50Hz (110V is also available) | ||
| Dimensions | 550×350×450mm, weight 60kg |
Working Interface

Accessories
- 1 high-pressure pressure-reducing valve.
- 1 high-pressure resistant air inlet pipe (3m) for connecting the equipment to the compressed air cylinder and adjusting the inlet air pressure.
- 10 sample dishes and a rack for easy storage.

Available Products
Marshall Stability Tester is a vital tool for assessing the stability and flow characteristics of asphalt mixtures. It plays a key role in determining the optimal asphalt content required for durable and high-performance pavement structures. By simulating real-world traffic conditions, this testing method ensures strength and resistance to deformation. Widely utilized in road construction projects, quality control labs, and research facilities, the Marshall Stability Tester supports reliable pavement design and long-term performance.
Marshall Stability Testers are engineered to meet key international standards governing asphalt mix design and performance assessment. These industry-recognized standards ensure accurate and reliable testing results and include:
- ASTM D6927 – Standard Test Method for Marshall Stability and Flow of Asphalt Mixtures
- AASHTO T245 – Standard Method of Test for Resistance to Plastic Flow of Asphalt Mixtures
- EN 12697-34 – Bituminous Mixtures – Test Methods for Hot Mix Asphalt – Part 34: Marshall Test
These compliance benchmarks make Marshall Stability Testers essential for quality control, pavement design validation, and regulatory adherence in asphalt testing applications.
Marshall Stability Testing plays a critical role in a wide range of asphalt pavement applications, including:
- Mix Design Optimization – Identifies the optimal bitumen content to achieve maximum stability, durability, and performance.
- Quality Control – Verifies that asphalt mixtures meet industry standards and specifications prior to road construction.
- Research & Development – Utilized in laboratory environments to analyze the mechanical behavior of asphalt under load conditions.
- Pavement Performance Evaluation – Helps assess the long-term durability and structural integrity of asphalt pavements in real-world traffic scenarios.
This method is essential for ensuring reliable, high-quality asphalt pavement design and construction.
Qualitest offers a comprehensive range of Marshall Stability Testers under the QualiMST-Series, designed to meet diverse asphalt testing requirements. Our models deliver accurate and dependable results, featuring digital displays, automated data acquisition, and intuitive operation. Whether you require a manual, semi-automatic, or fully automatic Marshall Stability Tester, the QualiMST-Series provides industry-standard performance at a competitive price point.
Explore our QualiMST-Series Marshall Stability Testers and elevate your asphalt testing capabilities with precision-engineered solutions from Qualitest.
Qualitest Advantage
- The #1 Source for Testing Technologies – Recognized as a comprehensive source for complete laboratory solutions for quality control, we provide streamlined support for all your testing requirements.
- Low Price Guarantee – We are confident that we offer competitive products at the best possible prices. We guarantee to provide the best value for your investment.
- High Standards – Our high-quality products are designed to meet and exceed the latest North American and international standards.
- ISO 9001 Certified – This internationally recognized standard underlines our focus on exceptional products, customer service, and regulatory compliance.
- Efficient Logistics – Short delivery times for standard products from multiple convenient distribution centers around the world. Our large shipment volume helps us offer the most competitive shipping rates worldwide.



