Zhejiang Tugong Instrument Co., Ltd.

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STDRJ-1 Freezing and Thawing Testing Machine

Complies to ASTM/C666
Application: The machine determines the resistance
of concrete specimens to rapidly repeated cycles
of freezing and thawing in the laboratory by method
of Rapid Freezing and Thawing in Water.
Technical parameters:
1. Accepted specimens are 16 pcs and 28pcs;
2. Specimen size: 100��100��400mm,
Specimen container size:120��120��500mm,
3. Freezing and thawing circle: around 2.5-4 hours
while thawing time is no less than 1/4 of the whole
circle;
4. Time/specimen center temperature when freezing
completed: 1.5-2.5hour/-17��2��;
5. Time/specimen center temperature when thawing
completed: 1.0-1.5hour/3��2��;
6. Temperature difference between surface and center
of specimens is less than 28��;
7. Standard cycles are 300 times while counter can
record upto 999999 times;
8. Freezing and thawing media: 120kg antifreeze
fluid(-45��);
9. Imported high quality compressor: complet
shut-off type 7.5HP;
10. Max working power: 9.7kW;
Features: compact in frame; stainless steel for
both inner and outside of the cabinet; easy installation
and maintainance.

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