E019 Concrete rapid freezing and thawing test device

This test device is designed and manufactured in accordance with the requirements of concrete frost resistance test in the National Electric Power Industry Standard DL/T5150-2001 "Test Regulations for Hydraulic Concrete". This test device is one of the necessary test equipment for testing the dynamic elastic modulus, mass loss rate and durability coefficient of concrete.
This test device is composed of a freezing and thawing test chamber, a refrigerant cycle and heating system, a refrigeration system, a recorder, an automatic control system, etc., which are installed in the same box.
Technical Parameters
1. Condenser cooling method: air cooling
2. Number of test pieces: 16 pieces; 28 pieces (optional)
3. Specimen size: 100*100*400mm
4. Freeze-thaw cycle period: 2.5~4 hours, thawing time is not less than 1/4 freeze-thaw cycle
5. End of freezing and thawing: time/test piece center temperature; 1.5~2.5 hours/-17±2℃ (adjustable)
6. The end of melting: time/test piece center temperature; 1.0~1.5 hours/8±2℃
7. The temperature difference between the center of the test piece and the surface: less than 28℃
8. Recorder: digital display controller for paperless recording
8. Cycle times: the standard is 300 times, the counter can reach 6 digits
9. Specimen cylinder size: 120*120*500mm
10. Freezing and thawing room size: 600*600*600mm
11. Freeze-thaw cycle medium and filling volume: -45℃ antifreeze, 120kg
12. Refrigeration power: fully enclosed compressor 5.6kW
13. Heating power: 6kW
14. Large operating power: 6.7 kW