New standard asphalt penetration tester

New standard asphalt penetration tester

one Purpose:

Computer Intelligencepenetrationmeasuring instrumentbased onTransportation Industry Standards of the People's Republic of ChinaJTG E20-2011, JTG 3410-2025 "Test Code for Asphalt and Asphalt Mixtures in Highway Engineering" - T0604-2011 "Penetration Test for Asphalt"Design and manufacture according to the technical requirements and relevant regulations in.

This instrument is mainly suitable for measuring the penetration of road petroleum asphalt, polymer modified asphalt, and the penetration of residual liquid petroleum asphalt after distillation or emulsified asphalt evaporationThe standard test condition is temperature25 ℃± 0.1 ℃, the test method is to vertically move a standard needle, needle connecting rod, and weight combination with a load of 100 grams ± 0.05 grams without obvious friction. The depth at which the combination penetrates the asphalt sample vertically within 5 seconds is called the asphalt penetration degree0.1mm (i.e. 1 needle penetration) gauge, usingTo determine the viscosity of asphalt. The greater the penetration of asphalt, the lower the viscosity of asphalt, and the softer the asphalt.

IItechnical indicators

1. Needle insertion depth device: precision displacement measurement device.

2. Needle insertion time control device: adjustable within 0-99 seconds, with a time error of less than ± 0.1 seconds.

3. Needle insertion accuracy: 0.01mm.

4. Maximum needle penetration depth:50mm。

5Standard needle: Total weight of needle and needle rod2.5 ± 0.05g, in compliance with the specifications of GB/T4509 and T0604.

6. Penetrating rod weight: 97.5g

7Flat bottomed glass dish: For a hard glass cylinder with a volume greater than1.5L， Depth greater than 80mm. Equipped with a sample dish holder inside to ensure stability.

8、 Sample container: made of copper, cylindrical with a flat bottom. Inside the sample dish55mm， Depth 35mm (suitable for specimens with a penetration of less than 200).

9Lift bracket: Can be freely adjustedEasy to align the needle tip with the plane of the sample.

IIIinstrumentOperation Manual

3.1 Page Description

Menu button: Enter menu settings.

Return "button: After entering the menu, return to the menu and clear the experimental data in the data entry.

“▲”Key: Flip up the menu or add one in the menu settings, and turn on the lighting on the test page.

“”Key: Scroll down the menu or subtract one in the menu settings, and turn off the lighting on the test page.

“”Key: Shift left in menu parameter settings.

“”Key: Shift to the right in the menu parameter settings.

Confirm/Print "button: Confirm the set parameters and print the data when connecting the printer (optional).

Auto button: Start the experiment and end it at the set time.

Manual construction: Manual experiment, keep pressing the "Manual" button, the needle will fall, release the button, and the needle will stop falling.

Data button: View experimental data.

3.2 Menu page description

3.2.1Falling time setting

3.2.2system parameter setting

The system parameters are set for manufacturer debugging purposes, please do not modify the parameters in the system parameter settings.

3.2.3Displacement calibration coefficient（*Tip: Please modify this parameter under the guidance of the manufacturer

In order to address the error caused by friction coefficient on needle penetration, this system has added a displacement calibration coefficient to calibrate the measured displacement.

Actual measured displacement=System displacement*Displacement calibration coefficient.

Attention: When measuring the displacement of this instrument, please set the displacement calibration coefficient to1.000.

3.3 Experimental Procedure Description

3.3.1Heat and melt the pre dehydrated sample, and the heating temperature should not exceed the estimated softening point of the sample90℃, time should not exceed30minMix thoroughly, sieve and inject into the sample dish. The height of the sample should exceed the expected penetration value10mmAnd cover the sample container to prevent dust from falling in. Place the sample container containing the sample in the15－30Cooling at room temperature of not less than ℃1－1.5h(Small sample dish)1.5－2hLarge sample dish.

3.3.2Place the sample dish that has reached a constant temperature into a constant temperature water bath and keep it warm1－1.5h(Small sample dish) or1.5－2h(Large sample dish), maintain water temperature25±0.5℃, the water surface should be higher than the sample surface25mmThe above.

3.3.3Adjust the asphalt penetration meter to make it level. Check the needle connecting rod and guide rail to confirm that there is no water or other foreign objects, and no obvious friction. Clean the standard needle with trichloroethylene or other solvents and wipe dry. Insert the standard needle into the needle connecting rod and secure it with screws.

3.3.4Place the flat bottomed insulated dish on the instrument workbench, and place the tripod in the flat bottomed insulated dish, which should be centered, and prepare enough temperature above25Inject clean water at ℃ into the insulated dish for use during the experiment.

3.3.5Take out the sample dish that has reached a constant temperature and transfer it to the water temperature controlAt the experimental temperature±0.1℃ (Unless otherwise specified, the test temperature is25On the triangular support of a flat bottomed glass dish with a temperature of (℃), the depth of the water layer above the surface of the sample shall not be less than10mm.

3.3.6Place the flat bottomed glass dish containing the sample on the platform of the penetrometer.

3.3.7Instrument operation

（1）Press the 'Menu' button to go to“① Falling time setting”Set the falling time（Unless otherwise specified, the time is5S）.

（2）Slowly lower the needle connecting rod and observe with light until the needle tip is in direct contact with the surface of the sample.

（3）Press the "Auto" button, the displacement sensor will automatically reset, and the needle and connecting rod will be immediately released and automatically inserted into the sample. At the same time, the timer will start. Once the timer is up, it will automatically lock and display the depth value of the test needle inserted into the asphalt sample at this time.

（4）If the test is valid, press the "Confirm" button to confirm the test results.

（5）After pushing the needle connecting rod up to the detection position by hand, the next test can be carried out.

（6）Change the sample to a different position and repeat the above steps for the second timeAfter the third measurement, pressThe "Data" button displays three measurements and the average value on the monitor, record the value.

（7）After the experiment is completed, the power should be turned off first, and then the needle and needle linkage should be pushed upwards to reset. It is not allowed to reset first and then turn off the power.

（8）Press the "manual" button and the connecting rod will automatically release immediately.

3.3.8Parallel testing of the same sample shall be conducted at least3Secondly, the distance between each testing point and the edge of the sample container should not be less than10mmThe average value of each test result is the test result of the sample.

3.3.9After each experiment, the flat bottomed glass dish containing the sample dish should be placed in a constant temperature water bath to maintain the temperature of the water in the flat glass dish at the test temperature. A clean standard needle should be replaced for each experiment.

4Packing List

uAsphalt penetration ratehost1 unit

uFlat bottomed glassware 1Taiwan

u55 * 35 (mm) test dish 1a

u2.5g standard needle 3 pieces

uTest dish holder 1a

upower cord 1 piece

uProduct User Manual 1 set

uProduct Qualification Certificate 1copy

Dear customer, hello. Welcome to purchase our products. Our company is committed to honesty and trustworthiness, and we serve you diligently. When you receive this product, please carefully check the contents of the packaging according to this packing list. If there are any discrepancies, please contact our company or local distributor immediately.

New standard asphalt penetration tester