Concrete Rapid Freeze-Thaw Test Chamber

HDK-3 concrete rapid freeze-thaw test chamber
HDK-5 concrete rapid freeze-thaw test chamber

HDK-9 concrete rapid freeze-thaw test chamber

Brief introduction of freeze-thaw test chamber
This test device is in accordance with the requirements of the concrete frost resistance test in the national power industry standard DL / T5150-2001 “Hydraulic Concrete Test Regulations”, and the “Quick Freeze” in GBJ82-85 “Long-term Performance and Durability Test Methods of Common Concrete” Method ‘and American ASTM / C666 “Standard Test Method for Rapid Freeze-thaw Capacity of Concrete” were designed and manufactured. At the same time, this test device is also applicable to the requirements of the JTJ53-94 standard, using water freezing and water dissolution method, and according to GB / T50082-2009 “Long-term performance and durability of ordinary concrete test method” and JB / T243-2009 “Concrete freeze-thaw resistance test “Equipment” standard requirements, once again optimize the design, so that various indicators lead the industry.
This product meets the freeze-thaw resistance test of concrete specimens with a requirement of 100 * 100 * 400.

Characteristics of freeze-thaw test chamber
1. Compressor adopts Danfoss compressor, high-efficiency 404 refrigerant, green environmental protection, low carbon energy saving.
2. All pipes and liners are made of stainless steel, equipped with stainless steel large-area filters.
3. Microcomputer control, temperature digital display, adjustable temperature inside the box, automatic door lifting device, reduce labor, convenient and reliable, only need to press one switch to achieve, high density insulation layer, good insulation effect, energy saving and environmental protection.
4. Reasonable evaporative condenser system design, fast cooling speed. Ensure compliance with standards.
The main technical parameters
Temperature range: -20 ℃ —25 ℃ (adjustable) ; Temperature uniformity: <2 ℃between each point;  Measurement accuracy ± 0.5 ℃;  display resolution 0.06 ℃;
Test parameters: freeze-thaw cycle period 2.5 ~ 4 hours, thawing time is not less than 1/4 freeze-thaw cycle, the center temperature of the specimen at the end of freezing -17 ± 2 ℃, the center temperature of the specimen at the end of thawing 8 ± 2 ℃.The cooling time is 1.5 ~ 2.5 hours, and the heating sample is 1.0-1.5 hours.

Sample capacity

Applications:
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.  Fully automatic operation frees operator to perform other lab duties.

Salient Features:

• 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.
• Horizontal stand alone model with mobility on castor wheels
• Fully complies with ASTM C666 Standard
• Fully automatic operation (PROCEDURE A) frees user to perform other lab activities
• For PROCEDURE B, User will have to manually pour the water inside the test container.
• Exterior body is fabricated from Stainless Steel – 304 Grade material
• Internal chamber is also manufactured from Stainless Steel S.S. – 304 Grade material.
• Cooling coil is incorporated within inner chamber to achieve desired temperature below zero degree Centigrade
• Supplied with 8 different corrosion resistant stainless steel test containers
• Can accommodate 8 different test specimens
• Can perform 8 Freeze-Thaw cycle during 24 hours of time
• 7” touch screen HMI & PLC Control system
• HMI System facilitates in-built 24/7 data logger system to accurately maintain record of control specimen temperature throughout the testing period
• User can set min/max temperature extremities as per test cycle requirement
• User defined no of cycles as per ASTM C666 Requirements
• Produce beep sound on completion of cycle
• CFC Free Emerson/Danfoss/Kirloskar make refrigeration system
• User can set Ramp & Soak rates as per test requirements
• Dedicated PC Software to log, modify and analyze the generated test results
• Supplied complete with instruction manual and calibration certificates
• Operates on 230 volts, 50 hz, Single phase, AC Supply

Rapid Freeze Thaw Chamber

The rapid freeze thaw chamber is used to test the Antifreeze performance of concrete, the antifreeze means the concrete specimen Anti-destructive ability subject to repeated freeze and thaw activity. It’s kind of very important concrete durability test equipment.

Features

●Fully Automatic test, when set times reached will stop automatically

●Human friendly design, LCD real-time display temperature variation conditional curve,

●Built-in printer for real time data print

●Solid-state relay control, no electric magnetic filed interference, guarantee long-term stable operation

●Upper computer software can batch import history data to computer, also can real time control the test and

●Print conditional curve, thus for easier analysis.