GB/T50082-2024 Standard Test Methods for Long-term Performance and Durability of Ordinary Concrete SL352-2020 Water Conservancy & National Industrial Standards GB/T3810-2016 Test Methods for Frost Resistance of Ceramic Tiles GB/T2542-2012 Test Methods for Wall Bricks GB/T 9966.1-2020 Test Methods for Natural Stone — Part 1: Compressive Strength after Drying, Water Saturation and Freeze-thaw Cycles JG158-2004 External Thermal Insulation Composite Systems Based on Mortar and Polystyrene Granules GB/T8042-1987 Test Method for Frost Resistance of Asbestos-cement Corrugated Sheets and Flat Sheets
Working Principle
This equipment adopts air freezing and water thawing mode. Fill the water storage tank fully before powering on, place specimens into the working chamber, switch on power and start the unit. The freeze-thaw tester automatically freezes specimens in air inside the chamber to the preset temperature and holds for an adjustable duration. Afterwards, the equipment automatically fills water at the set temperature and maintains the temperature for another adjustable period. When the thawing holding period ends, water is automatically drained back to the storage tank. The cycle counter increases by one, and the unit automatically proceeds to the next freeze-thaw cycle.
Instrument Structure
The fully automatic low-temperature freeze-thaw test device consists of three modules: refrigeration & heating system, control system and water injection system. It adopts vertical structure made of high-quality steel. The inner water tank and storage tank are constructed entirely of stainless steel plates. The overall structure is sturdy with anti-rust treatment and excellent corrosion resistance. The main unit adopts an imported hermetic refrigeration compressor, featuring small footprint, low noise, easy operation and low power consumption. The condenser is manufactured with red copper tubes for superior heat transfer performance. Startup, delayed holding and shutdown are automatically controlled by the instrument for safe and reliable operation. Featuring high automation and high efficiency, it can automatically complete 0–9999 freeze-thaw cycles without manual adjustment or continuous monitoring.
Product Features
1. Independently developed low-temperature chamber control program upgraded through years of practical application. It supports automatic control, real-time dynamic display of data curves, automatic storage of test data, automatic recovery after unexpected test interruption, as well as low-water protection, overtime protection and overpressure protection to ensure stable and safe operation of the freeze-thaw tester.
2. Optimized structural design for convenient operation and reduced labor intensity for operators.
3. Imported key components including compressors and heating elements with high quality and outstanding performance.
4. Maximum temperature difference among all points inside the freeze-thaw chamber ≤1℃ under full-load operation.
5. Equipped with low-center-of-gravity casters for easy installation and movement; compact footprint and low noise.
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