Composition of automatic asphalt mixture rutting test machine - Huaqiang Electronic Network

Photocoupler

1

,

1

Rutting test machine: mainly consists of the following parts:

Test piece table: two widths can be firmly installed (

300mm

and

150mm

) A test piece of a specified size test piece.

Test wheel: rubber solid tire, outer diameter

Φ200mm

Wheel width

50mm

, rubber layer thickness

15mm

. Rubber hardness (international standard hardness)

20

°C

Time

84±4

,

60

°C

Time

78±2

. The test wheel travel distance is

230mm ± 10mm,

Round-trip rolling speed is

42

Times

/min±1

Times

/min

(

twenty one

Round trip

/min

). It is allowed to use the crank link to drive the test bench movement (the test wheel does not move) or the chain drive test wheel movement (the test bench does not move).

Note: The rubber hardness of the tire should be checked. If it does not meet the requirements, it should be replaced in time.

Loading device: the contact pressure between the test wheel and the test piece is

60

°C

Time

0.7MPa±0.05MPa

, the total load applied is

78kg

Left and right, can be adjusted as needed.

Test mode: made of steel plate, consisting of bottom plate and side plate, the inner dimension of the test die is long.

300mm

, wide for

300mm

Thick taste

50mm

(made in the laboratory), can also be fixed

150mm

Wide on-site cutting test piece.

Deformation measuring device: A device that automatically detects the deformation of the rut and records the curve, usually

LVDT

, electric meter or non-contact displacement meter.

Temperature detecting device: temperature sensor, thermometer, precision that automatically detects and records the surface of the test piece and the temperature in the constant temperature room

0.5

°C

.

1.2

Constant temperature room: The rutting test machine must be placed in a constant temperature room, equipped with a heater, air circulation device and equipped with automatic temperature control equipment to maintain the temperature of the constant temperature room.

60

°C

±1

°C

(test piece internal temperature

60

°C

±0.5

°C

), other required temperatures may be used as needed. It is used to insulate the test piece and carry out the test. The temperature should be automatically recorded continuously.

1.3

Bench scale: weighing

15kg

, the amount of sensitivity is not greater than

5g



Zhonghao Bolian Instrument (Beijing) Instrument Equipment Co., Ltd.

Manager Jiang: 13910442308