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T: 1 800 463-4363
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Rapid, Freeze-Thaw Cabinet, Digital Material Testing

Rapid, Freeze-Thaw Cabinet, Digital

Product Code:ASTM C666

Need more Info? (514) 354-2511 - 1-800-463-4363

The H-3185SD goes beyond the basic capabilities of the B model above and provides the following capabilities:

  • User-created test capabilities are possible, to change freeze time, temperature minimum, temperature maximum and the number of cycles to run.
  • Real-time, on-screen testing with graphing, allowing different data views to be chosen.
  • Test data can be reviewed after a test is completed, which includes tabulation and graph views.
  • Touch-screen interface for easy navigation.
  • Export test data to a PC using Humboldt IR Download. This includes report creation for internal or customer usage.
  • Connect to the Freeze-Thaw Cabinet remotely for control and/or observation.

The Rapid Freeze-Thaw Cabinet is used to measure the resistance of concrete to deterioration caused by repeated cycles of freezing and thawing in water. The system is designed to test up to eighteen 3" x 4" x 16" (76 x 102 x 406cm) concrete specimens simultaneously, with one being a control. The cabinet includes 17 Standard, H-3185T sample trays and 1 Standard, H-3185TS sample tray, which has a built-in spout on each end of the tray. Key features of system include:

  • Fully automatic operation frees operator to perform other lab duties.
  • Allows users to establish field control using correlations between concrete strength and durability
  • Permits the evaluation of variables in concrete properties and conditioning.
  • Useful in the evaluation of the durability of aggregates, as well as the properties of ad mixtures.

Up to eight freeze-thaw cycles are possible within a 24-hour period. But the exact number of cycles is dependent upon the time required for the temperature at the center of the control prism to from 40 to 0°F (4.4 to -17.8°C) and then back to 40°F (4.4°C). The temperature at the center of the control specimen is cycled by means of a 3/4 HP (0.6KW) refrigeration unit and electric resistance heaters with fully automatic controls. An electric temperature recorder with 24-hour, 7-day week chart is incorporated into the unit to accurately maintain a record of the control specimen temperature throughout the testing period.

For corrosion resistance and long service life, the system features a stainless steel, 84" x 34" x 11" (213 x 86 x 30cm) cabinet construction with 3" (76mm) insulation on all sides. The internal test compartment measures 6" x 26" x 74" (15 x 66 x 188cm). A 30-amp circuit is required for operation. Meets ASTM C666, procedure A; and AASHTO T161, procedure A.

Order H-3195 freeze-thaw molds separately.
Shipping wt. 950 lbs. (431kg); 29 cu. ft.


H-3185SD.3 Thermocouple Replacement for H-3185SD
H-3185B.3 Thermocouple Replacement for H-3185B
H-3195 Freeze-Thaw Specimen Mold
H-3198M Freeze-Thaw Specimen Mold for 100 x 100 x 400mm Specimens
H-3185T Stainless Steel Sample Positioning Tray - Stainless Steel Sample Positioning Tray
H-3185TM Stainless Steel Sample Positioning Tray - Stainless Steel Sample Tray
H-3185TS Stainless Steel Sample Positioning Tray with Spout
H-3185.1 7-Day Chart Paper - 7-Day Chart Paper (100/Bx), -20 to +80°F
H-3185.1AC 7-Day Chart Paper - 7-Day Chart Paper (60/Bx), -30 to +10°C
H-3185.1AF 7-Day Chart Paper - 7-Day Chart Paper (60/Bx), -20 to +50°F


Replacement Part
H-3185SH Replacement Heating Element
H-3185.3A Pen Replacement Kit, (1) per kit


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