Uses and Features of the Low-Temperature Asphalt Material Strength Tester

Uses and Features of the Low-Temperature Asphalt Material Strength Tester

The low-temperature asphalt material strength testing instrument can precisely control any loading rate. In addition to the commonly used mechanical tests for asphalt mixtures, this instrument—equipped with various accessory devices—can also be used to measure the unconfined compressive strength and indirect tensile strength of diverse geotechnical specimens, as well as to determine the thermal stability and resistance to plastic flow of asphalt mixtures—specifically, the stability and flow values (Marshall test), and other tests requiring vertical loading.

The integrated control system for the low-temperature asphalt material strength performance tester features a high-speed dual-CPU design and a large-screen LCD display with Chinese graphical interface. It adopts a separate analog-to-digital architecture, with a high-speed sampling CPU responsible for data acquisition. The system supports simultaneous input from bidirectional displacement sensors, offering high precision and real-time operation. It comes equipped with comprehensive, built-in testing software capable of performing anomaly detection on various materials. Additionally, the system can connect to a PC for communication, featuring functions such as data storage, a USB host interface, and direct connection to a USB inkjet printer.

In addition, the low-temperature asphalt material strength performance tester is equipped with a constant-temperature chamber that meets the requirements of various low-temperature tests. The instrument features automatic temperature control with temperature fluctuations less than 0.5℃. The asphalt wax content measuring device employs a high-precision, fast-response, and clearly readable digital electronic temperature-control instrument. The refrigerator is an imported 15-kW unit fitted with a high-power F22 compressor, capable of reaching low temperatures as low as -28℃. This device addresses the shortcomings of previous methods that relied on manual dry ice cooling and Dewar flask insulation—namely, difficulty in precisely controlling temperature, the inability to process more than one sample at a time, and cumbersome analytical procedures. The petroleum asphalt wax content determination instrument can analyze up to three samples per test. It boasts advantages such as rapid cooling, high control accuracy, simple operation, and significant time and labor savings. It is an ideal analytical instrument for industries including petroleum, chemical engineering, construction, and highway development.

There are many details that need to be considered when selecting a low-temperature asphalt material strength performance tester. First, regarding the manufacturer, the selected asphalt mixture rutting tester has been developed through years of research and meets user needs. It features a reasonable design and is easy to operate. Second, the selection of key components in the asphalt testing equipment ensures that measurement results accurately reflect reality and fully satisfy experimental requirements. In addition, the tester offers both automatic and manual control functions, allowing for precise adjustment of the cart’s position over time. The low-temperature asphalt material strength performance tester boasts powerful functionality and a mature, user-friendly interface; it allows users to modify displacement calibration values, thereby guaranteeing data accuracy. To determine the mass of heavy mineral powder in the extract solution: After stirring the extract solution, pour it into a measuring cylinder and shake the extraction cylinder several times with a small amount of solvent. Combine the washed-out solution and pour it all into the graduated cylinder, then record the volume of the extract solution in the cylinder. After thoroughly mixing the extractable solution in the measuring cylinder, transfer about 10 ml of the solution into a weighed magnetic evaporation dish and record the volume of the extractable solution portion measured. Place the constant-weight evaporation dish into a drying oven, allow it to cool, and then weigh it as part of the mineral powder.