The M.i.S.T.2 Moisture Induced Stress Testing, AASHTO TP 140

The M.i.S.T.2 Moisture Induced Stress Testing, AASHTO TP 140

InstroTek introduces the upgraded MiST 2 (Moisture Induced Stress Tester), an advanced asphalt moisture sensitivity conditioning device now featuring a quieter operation and a more compact design to fit labs of any size. This improved version is designed for enhanced efficiency and ease of use, offering a reliable way to assess moisture damage susceptibility in asphalt mixtures by simulating stripping mechanisms in HMA pavement layers.

New MiST 2 Features

• Ultra-Quiet Operation: The innovative pneumatic system significantly reduces noise levels—so quiet, you’ll barely hear it run!
• Compact Benchtop Design: With a smaller footprint (30"L x 24"W x 30"H), it fits seamlessly into any lab setup.
• Lighter Weight: At just 163 lbs, it’s three times lighter than the original model.
• Fully Automatic System: Automatically drains after each test, ensuring a moisture-free chamber and greater reliability. Just load the samples, set the parameters, and let the machine handle the rest.
• Optimized Capacity: Accommodates 2-150mm, 3-100mm, or 3 Ideal CT asphalt cores in a smaller unit.

The MiST 2™ is a standalone cyclic conditioning system designed to replicate stripping mechanisms in HMA pavement layers. Its pressurized chamber pushes and pulls water through compacted asphalt samples, mimicking the effect of vehicle tires. With testing options for varying pressures and temperatures, it adapts to real-world traffic and environmental conditions. Fully automatic, results are delivered in as little as four hours, simplifying moisture sensitivity testing for asphalt labs.

Key Benefits

• AASHTO TP 140 compliant.
• Simulates HMA pavement stripping mechanisms.
• Delivers faster results compared to traditional methods (less than one day).
• Realistic test pressures replicate those from vehicle tires.
• Automatic operation with sensor monitoring.
• Stores data for analysis and archiving via PC.

Specifications:

• Weight: 159kg (350 lbs)
• Height: 1.35m (53")
• Footprint: 0.53m x 0.53m (21" x 21")
• Power: 115 VAC 20A (optional 230 VAC available)

With the MiST 2™, InstroTek continues to set the standard for precise, efficient, and user-friendly asphalt testing solutions.