XPD-06D Concrete Linear Expansion Coefficient TesterMain technical parameters:

1. The automatic constant temperature water tank of the mixer can test one specimen at a time. The water level inside the tank should be about 50mm below the top of the specimen cylinder, and the temperature should be controlled within 0.5 ℃. The cooling rate can be controlled by a refrigeration unit.

2. Measurement: Differential resistance strain gauge, measuring 250mm.

3. A type of bridge used to test the strain value of resistance.

4. The thermometer has a measurement range of 0-100 ℃ and an accuracy of 0.1 ℃ display.

5. Test piece holder, with a diameter of 200mm and a height of 500mm, or using a covered white iron tube.