Main parameters of DPTDR-28 concrete rapid freeze-thaw test machine

Concrete rapid freeze-thaw test machine freeze-thaw test machine model: DPTDR-28

This product is suitable for determining the frost resistance of concrete when the concrete specimens are subjected to the conditions of rapid freeze-thaw cycles or freeze-resistance durability under the conditions of water-frozen water. The product meets the national standard "Test method for long-term performance and durability of ordinary concrete" (GB/T 50082-2009), "Concrete antifreeze test equipment" (JG/T 243-2009), ASTM C666 "Standard test of rapid freezing and thawing ability of concrete Method, DL T5150-2001 "Hydraulic Concrete Test Procedures" and other standards.

Main technical parameters of concrete rapid freezing and thawing test machine

model

DPTDR-16

DPTDR-28

Condenser cooling method

Air cooled

Air cooled

Number of test pieces

16 pieces

28 pieces

Specimen size

100×100×400, the temperature measuring parts are the same size, and the temperature measuring hole is left in the middle.

Freeze-thaw cycle

2.5 to 4 hours, the melting time is not less than 1∕4 freeze-thaw cycle

Temperature control range

-20 ° C ~ 20 ° C ± 1 ° C

Sensor 1: Center temperature control

8～-17±2°C

Sensor 2: Liquid temperature control

Liquid temperature control high temperature control: 18 ~ 23 ° C low temperature control: -23 ~ -18 ° C

Sensor 3: Diagonal temperature control

The temperature difference inside the diagonal temperature monitoring box does not exceed 2 °C

Sensor 4: Secondary protection temperature control

50 ° C ~ -30 ° C

Logger

Digital display paperless recorder

Specimen barrel size

120×120×500

Freeze-thaw cycle medium

-45 ° C antifreeze

Freeze-thaw cycle medium charge

The liquid level is higher than the test block 10-15 mm

Refrigerator compressor

Fully enclosed 4HP

Fully enclosed 5HP

heating power

5kW

6kW

Maximum operating power

6kW

7kW

powered by

3N380V50Hz

3N380V50Hz

Dimensions

1100×480×900

1450×800×1650

weight

About 100kg

About 150kg