Infrared thermometers - Huaqiang Electronic Network

Application range of infrared thermometer

1

The method is applicable to the standard compacting method or the large compacting method for preparing the asphalt mixture test piece, and is used for testing the physical and mechanical properties of the asphalt mixture in the laboratory.

2

Standard compaction method is applicable to Marshall test, indirect tensile test (split method), etc.

Φ101.6mm×63.5mm

The molding of the cylindrical test piece. Large compaction method applies to

Φ152.4mm×95.3mm

The molding of large cylindrical specimens.

3

The specifications of the mineral materials and the number of test pieces in the preparation of the asphalt mixture test pieces shall comply with the following requirements:

3.1

When designing the mix ratio of asphalt mixture and artificially preparing asphalt mixture in the laboratory, the size of the test piece shall conform to the diameter of the test piece not less than the nominal maximum particle size of the aggregate.

4

Double, the thickness is not less than the nominal maximum particle size of the aggregate

1~1.5

Multiple regulations. Diameter

101.6mm

For the test piece, the nominal maximum particle size of the aggregate shall not be greater than

26.5mm

. For particle size greater than

26.5mm

Coarse-grained asphalt mixture, which is larger than

26.5mm

Aggregate application equal amount

13.2mm~26.5mm

Aggregate replacement (replacement method), diameter can also be used

Φ152.4mm

Large cylindrical specimens. Large cylindrical specimens are suitable for aggregates with a nominal maximum particle size not greater than

37.5mm

Case. The number of test pieces formed in the laboratory has to be less than

4

If necessary, increase to

5~6

One.

3.2

Diameter diameter of finished sample of mixed asphalt mixture collected by mixing plant and construction site

101.6mm

For the test piece, select the different methods and the number of test pieces according to the following regulations:

When the aggregate nominal maximum particle size is less than or equal to

26.5mm

When it is possible, it can be sampled directly (direct method). The number of test pieces is usually

4

One.

When the aggregate nominal maximum particle size is greater than

26.5mm

But not greater than

31.5mm

Should be greater than

26.5mm

Used after screening

(

Screening method

)

, the number of test pieces is still

4

If the direct method is used, the number of test pieces should be increased to

6

One.

When the aggregate nominal maximum particle size is greater than

31.5mm

The sieving method must be used. The sieved sieve hole is

26.5mm

, a set of test pieces is still

4

One.

Instruments and materials

Standard compactor: there is a hammer,

Φ98.5mm

A flat circular compaction head and a guide bar with a handle. Lift the compactor hammer manually or mechanically, from

457.2mm±1.5mm

The height is free to fall along the guide bar, the standard compaction hammer quality

4536g±9g

.

Large-scale compactor: by compacting hammer,

Φ149.5mm

Flat round compaction head and guide bar with handle (diameter

15.9mm

)composition. Lift the compactor with machinery, from

457.2mm2.5mm

The height is free to fall along the guide bar, and the mass of the large compaction hammer

10210g±10g

.

Standard compaction table: used to fix the test mode,

200mm × 200mm × 457mm

There is a piece of hardwood pier above it

305mm305mm×25mm

Steel plate, wooden pier

4

The root steel is fixed on the cement concrete slab below. The wooden pier is made of Cyclobalanopsis glauca, pine or other dry density.

0.67g/cm 3~0.77g/cm3

Hardwood into. This standard compaction table must be available for manual or mechanical compaction.

The automatic compactor is a device that integrates the standard compacting hammer and the standard compacting table and electrically drives the compacting hammer to continuously compact the test piece and automatically counts the device. The compacting speed is

60

Times

/min±5

Times

/min

. The power of large-scale compaction electric compaction is not less than

250W

.

Asphalt mixture mixer for laboratory: It can ensure the mixing temperature and mix well, control the mixing time, and the capacity is not less than

10L

As shown

1

Shown. Stirring leaf rotation speed

70r/min~80r/min

Speed ​​of revolution

40r/min~50r/min

.

Mold release: Electric or manual, cylindrical test piece can be unimpeded, and the standard cylindrical test piece and the extrusion ring of large cylindrical test piece size are available.

Test mode: made of high carbon steel or tool steel, each set including inner diameter

101.6mm±0.2mm

,high

87mm

Cylindrical metal cylinder, base (diameter about

120.6mm

And the sleeve (inner diameter)

101.6mm

,high

70mm

)one of each.

Trial and sleeve diagram of large cylindrical specimens

2

Shown. Sleeve outer diameter

165.1mm

,the inside diameter of

155.6mm±0.3mm

,Total height

83mm

. Test die diameter

152.4mm±0.2mm

,Total height

115mm

, base plate thickness

12.7mm

,diameter

172mm

.

Oven: One large and one medium, equipped with a temperature regulator.

Balance or electronic scale: used to weigh mineral materials, the amount of sensitivity is not greater than

0.5g

For weighing asphalt, the amount of sensitivity is not greater than

0.1g

.

Asphalt kinematic viscosity measuring equipment: capillary viscometer, Saybolt heavy oil viscometer or Brookfield viscometer.

Insert a knife or a large screwdriver.

1

The method is applicable to the standard compacting method or the large compacting method for preparing the asphalt mixture test piece, and is used for testing the physical and mechanical properties of the asphalt mixture in the laboratory.

2

Standard compaction method is applicable to Marshall test, indirect tensile test (split method), etc.

Φ101.6mm×63.5mm

The molding of the cylindrical test piece. Large compaction method applies to

Φ152.4mm×95.3mm

The molding of large cylindrical specimens.

3

The specifications of the mineral materials and the number of test pieces in the preparation of the asphalt mixture test pieces shall comply with the following requirements:

3.1

When designing the mix ratio of asphalt mixture and artificially preparing asphalt mixture in the laboratory, the size of the test piece shall conform to the diameter of the test piece not less than the nominal maximum particle size of the aggregate.

4

Double, the thickness is not less than the nominal maximum particle size of the aggregate

1~1.5

Multiple regulations. Diameter

101.6mm

For the test piece, the nominal maximum particle size of the aggregate shall not be greater than

26.5mm

. For particle size greater than

26.5mm

Coarse-grained asphalt mixture, which is larger than

26.5mm

Aggregate application equal amount

13.2mm~26.5mm

Aggregate replacement (replacement method), diameter can also be used

Φ152.4mm

Large cylindrical specimens. Large cylindrical specimens are suitable for aggregates with a nominal maximum particle size not greater than

37.5mm

Case. The number of test pieces formed in the laboratory has to be less than

4

If necessary, increase to

5~6

One.

3.2

Diameter diameter of finished sample of mixed asphalt mixture collected by mixing plant and construction site

101.6mm

For the test piece, select the different methods and the number of test pieces according to the following regulations:

When the aggregate nominal maximum particle size is less than or equal to

26.5mm

When it is possible, it can be sampled directly (direct method). The number of test pieces is usually

4

One.

When the aggregate nominal maximum particle size is greater than

26.5mm

But not greater than

31.5mm

Should be greater than

26.5mm

Used after screening

(

Screening method

)

, the number of test pieces is still

4

If the direct method is used, the number of test pieces should be increased to

6

One.

When the aggregate nominal maximum particle size is greater than

31.5mm

The sieving method must be used. The sieved sieve hole is

26.5mm

, a set of test pieces is still

4

One.

Instruments and materials

Standard compactor: there is a hammer,

Φ98.5mm

A flat circular compaction head and a guide bar with a handle. Lift the compactor hammer manually or mechanically, from

457.2mm±1.5mm

The height is free to fall along the guide bar, the standard compaction hammer quality

4536g±9g

.

Large-scale compactor: by compacting hammer,

Φ149.5mm

Flat round compaction head and guide bar with handle (diameter

15.9mm

)composition. Lift the compactor with machinery, from

457.2mm2.5mm

The height is free to fall along the guide bar, and the mass of the large compaction hammer

10210g±10g

.

Standard compaction table: used to fix the test mode,

200mm × 200mm × 457mm

There is a piece of hardwood pier above it

305mm305mm×25mm

Steel plate, wooden pier

4

The root steel is fixed on the cement concrete slab below. The wooden pier is made of Cyclobalanopsis glauca, pine or other dry density.

0.67g/cm 3~0.77g/cm3

Hardwood into. This standard compaction table must be available for manual or mechanical compaction.

The automatic compactor is a device that integrates the standard compacting hammer and the standard compacting table and electrically drives the compacting hammer to continuously compact the test piece and automatically counts the device. The compacting speed is

60

Times

/min±5

Times

/min

. The power of large-scale compaction electric compaction is not less than

250W

.

Asphalt mixture mixer for laboratory: It can ensure the mixing temperature and mix well, control the mixing time, and the capacity is not less than

10L

As shown

1

Shown. Stirring leaf rotation speed

70r/min~80r/min

Speed ​​of revolution

40r/min~50r/min

.

Mold release: Electric or manual, cylindrical test piece can be unimpeded, and the standard cylindrical test piece and the extrusion ring of large cylindrical test piece size are available.

Test mode: made of high carbon steel or tool steel, each set including inner diameter

101.6mm±0.2mm

,high

87mm

Cylindrical metal cylinder, base (diameter about

120.6mm

And the sleeve (inner diameter)

101.6mm

,high

70mm

)one of each.

Trial and sleeve diagram of large cylindrical specimens

2

Shown. Sleeve outer diameter

165.1mm

,the inside diameter of

155.6mm±0.3mm

,Total height

83mm

. Test die diameter

152.4mm±0.2mm

,Total height

115mm

, base plate thickness

12.7mm

,diameter

172mm

.

Oven: One large and one medium, equipped with a temperature regulator.

Balance or electronic scale: used to weigh mineral materials, the amount of sensitivity is not greater than

0.5g

For weighing asphalt, the amount of sensitivity is not greater than

0.1g

.

Asphalt kinematic viscosity measuring equipment: capillary viscometer, Saybolt heavy oil viscometer or Brookfield viscometer.

Insert a knife or a large screwdriver.