How to use the geotextile wear tester? -Huaqiang Electronic Network

1. Test the tested specimens in the standard atmosphere specified in GB6529.

2. Place the calibrated specimen on a stationary upper plate and clamp the specimen with a clamp at both ends of the plate. The abrasive is placed on a reciprocable lower plate and clamped at both ends of the plate with a clamp.

3. Place the upper plate on the lower plate to align the sample with the abrasive.

4. Apply the upper plate to the weight including the upper plate (

6

±

0.01

) The load of kg.

5. Turn on the power switch, set the required wear cycle, the tester turns on the wear test, the machine is every minute.

90

The frequency of the cycle is working, grinding at a specified frequency

750

Cycle, or until the sample wears through. If the sample is worn through before the specified period, the number of cycles during the wear of the sample and the wear of the sample shall be reported. If there is an abnormal situation in the middle, press the stop button to stop, and press the counter to clear the next test. key.

6. If the sample or abrasive slips in the clip, discard the sample, and test another piece after the wake-up adjustment. Replace the abrasive after each test.

CB/T3923.1

The provisions of the tensile test on the reference sample and the wear sample.

7.

Calculation and representation of results

:

Calculate the percentage of strength loss for each set of tests, accurate to

1

%:

Strong loss rate (%) =

[

(FA-FB)÷

FA

]

×

100

In the formula:

FA

- reference fracture strength,

N;

FB—the fracture strength of the wear sample,

N.

Calculation

5

The percentage of average strength loss of the sample and its coefficient of variation.

8.

experiment report

:

The test report should include the following:

a)

The number of this standard;

b) Identification of the sample (by

GB14798

Provisions);

c) the direction and front and back of the subject;

d) average strong loss rate, %;

e) coefficient of variation of strong loss, %;

f) deviate from any details of this standard, such as the number of cycles, load, etc.;

g) Abnormal conditions in the test, such as wear and tear.